diff --git a/eclipse-plugin/com.alibaba.smartfox.eclipse.feature/feature.xml b/eclipse-plugin/com.alibaba.smartfox.eclipse.feature/feature.xml
index 552fc5e..5a734b0 100644
--- a/eclipse-plugin/com.alibaba.smartfox.eclipse.feature/feature.xml
+++ b/eclipse-plugin/com.alibaba.smartfox.eclipse.feature/feature.xml
@@ -2,7 +2,7 @@
 <feature
         id="com.alibaba.smartfox.eclipse.feature"
         label="%feature.label"
-        version="1.0.4.qualifier"
+        version="1.0.5.qualifier"
         provider-name="%feature.provider_name"
         plugin="com.alibaba.smartfox.eclipse.plugin"
         image="smartfox.png">
diff --git a/eclipse-plugin/com.alibaba.smartfox.eclipse.feature/pom.xml b/eclipse-plugin/com.alibaba.smartfox.eclipse.feature/pom.xml
index 0203765..d4ad403 100644
--- a/eclipse-plugin/com.alibaba.smartfox.eclipse.feature/pom.xml
+++ b/eclipse-plugin/com.alibaba.smartfox.eclipse.feature/pom.xml
@@ -5,7 +5,7 @@
   <parent>
     <groupId>com.alibaba.smartfox.eclipse</groupId>
     <artifactId>smartfox-eclipse</artifactId>
-    <version>1.0.4-SNAPSHOT</version>
+    <version>1.0.5-SNAPSHOT</version>
   </parent>
   <artifactId>com.alibaba.smartfox.eclipse.feature</artifactId>
   <packaging>eclipse-feature</packaging>
diff --git a/eclipse-plugin/com.alibaba.smartfox.eclipse.plugin/META-INF/MANIFEST.MF b/eclipse-plugin/com.alibaba.smartfox.eclipse.plugin/META-INF/MANIFEST.MF
index 3a696bc..f2bc058 100644
--- a/eclipse-plugin/com.alibaba.smartfox.eclipse.plugin/META-INF/MANIFEST.MF
+++ b/eclipse-plugin/com.alibaba.smartfox.eclipse.plugin/META-INF/MANIFEST.MF
@@ -2,7 +2,7 @@ Manifest-Version: 1.0
 Bundle-ManifestVersion: 2
 Bundle-Name: com.alibaba.smartfox.eclipse.plugin
 Bundle-SymbolicName: com.alibaba.smartfox.eclipse.plugin;singleton:=true
-Bundle-Version: 1.0.4.qualifier
+Bundle-Version: 1.0.5.qualifier
 Bundle-Activator: com.alibaba.smartfox.eclipse.SmartfoxActivator
 Bundle-Vendor: Alibaba
 Require-Bundle: org.eclipse.ui,
diff --git a/eclipse-plugin/com.alibaba.smartfox.eclipse.plugin/pom.xml b/eclipse-plugin/com.alibaba.smartfox.eclipse.plugin/pom.xml
index 5b461cd..eca2d1c 100644
--- a/eclipse-plugin/com.alibaba.smartfox.eclipse.plugin/pom.xml
+++ b/eclipse-plugin/com.alibaba.smartfox.eclipse.plugin/pom.xml
@@ -5,7 +5,7 @@
   <parent>
     <groupId>com.alibaba.smartfox.eclipse</groupId>
     <artifactId>smartfox-eclipse</artifactId>
-    <version>1.0.4-SNAPSHOT</version>
+    <version>1.0.5-SNAPSHOT</version>
   </parent>
   <artifactId>com.alibaba.smartfox.eclipse.plugin</artifactId>
   <packaging>eclipse-plugin</packaging>
diff --git a/eclipse-plugin/com.alibaba.smartfox.eclipse.updatesite/pom.xml b/eclipse-plugin/com.alibaba.smartfox.eclipse.updatesite/pom.xml
index aecaa4c..88fcdf6 100644
--- a/eclipse-plugin/com.alibaba.smartfox.eclipse.updatesite/pom.xml
+++ b/eclipse-plugin/com.alibaba.smartfox.eclipse.updatesite/pom.xml
@@ -5,7 +5,7 @@
   <parent>
     <groupId>com.alibaba.smartfox.eclipse</groupId>
     <artifactId>smartfox-eclipse</artifactId>
-    <version>1.0.4-SNAPSHOT</version>
+    <version>1.0.5-SNAPSHOT</version>
   </parent>
   <artifactId>com.alibaba.smartfox.eclipse.updatesite</artifactId>
   <packaging>eclipse-repository</packaging>
diff --git a/eclipse-plugin/pom.xml b/eclipse-plugin/pom.xml
index 868ee64..625888e 100644
--- a/eclipse-plugin/pom.xml
+++ b/eclipse-plugin/pom.xml
@@ -5,7 +5,7 @@
     <modelVersion>4.0.0</modelVersion>
     <groupId>com.alibaba.smartfox.eclipse</groupId>
     <artifactId>smartfox-eclipse</artifactId>
-    <version>1.0.4-SNAPSHOT</version>
+    <version>1.0.5-SNAPSHOT</version>
     <packaging>pom</packaging>
     <inceptionYear>2017</inceptionYear>
     <properties>
diff --git a/idea-plugin/p3c-idea/src/main/resources/META-INF/plugin.xml b/idea-plugin/p3c-idea/src/main/resources/META-INF/plugin.xml
index f6bfe62..662d94a 100755
--- a/idea-plugin/p3c-idea/src/main/resources/META-INF/plugin.xml
+++ b/idea-plugin/p3c-idea/src/main/resources/META-INF/plugin.xml
@@ -6,10 +6,15 @@
     <change-notes>
         <![CDATA[
           <ul>
+        1.0.5
+         <li>https://github.com/alibaba/p3c/issues/264</li>
+         </ul>
+          <ul>
         1.0.4
          <li>fix https://github.com/alibaba/p3c/issues/217</li>
         <li>fix https://github.com/alibaba/p3c/issues/208</li>
         <li>fix https://github.com/alibaba/p3c/issues/195</li>
+        </ul>
          <ul>
         1.0.3
         <li>fix <a href="https://github.com/alibaba/p3c/issues/191">https://github.com/alibaba/p3c/issues/191</a></li>
diff --git a/p3c-pmd/pom.xml b/p3c-pmd/pom.xml
index 9740714..339889d 100644
--- a/p3c-pmd/pom.xml
+++ b/p3c-pmd/pom.xml
@@ -9,7 +9,7 @@
   <modelVersion>4.0.0</modelVersion>  
   <groupId>com.alibaba.p3c</groupId>
   <artifactId>p3c-pmd</artifactId>  
-  <version>1.3.4</version>
+  <version>1.3.5</version>
   <packaging>jar</packaging>  
   <name>p3c-pmd</name>  
   <properties>
diff --git a/p3c-pmd/src/main/java/com/alibaba/p3c/pmd/lang/java/rule/comment/EnumConstantsMustHaveCommentRule.java b/p3c-pmd/src/main/java/com/alibaba/p3c/pmd/lang/java/rule/comment/EnumConstantsMustHaveCommentRule.java
index c4ee2f6..7e795ee 100644
--- a/p3c-pmd/src/main/java/com/alibaba/p3c/pmd/lang/java/rule/comment/EnumConstantsMustHaveCommentRule.java
+++ b/p3c-pmd/src/main/java/com/alibaba/p3c/pmd/lang/java/rule/comment/EnumConstantsMustHaveCommentRule.java
@@ -49,9 +49,11 @@ public class EnumConstantsMustHaveCommentRule extends AbstractAliCommentRule {
             if (value instanceof ASTEnumDeclaration) {
                 isPreviousEnumDecl = true;
             } else if (value instanceof ASTEnumConstant && isPreviousEnumDecl) {
-                addViolationWithMessage(data, value,
+                Node enumBody = value.jjtGetParent();
+                Node enumDeclaration = enumBody.jjtGetParent();
+                addViolationWithMessage(data, enumBody,
                     I18nResources.getMessage("java.comment.EnumConstantsMustHaveCommentRule.violation.msg",
-                        value.getImage()));
+                        enumDeclaration.getImage()));
                 isPreviousEnumDecl = false;
             } else {
                 isPreviousEnumDecl = false;
diff --git a/p3c-pmd/src/main/java/com/alibaba/p3c/pmd/lang/java/rule/flowcontrol/AvoidNegationOperatorRule.java b/p3c-pmd/src/main/java/com/alibaba/p3c/pmd/lang/java/rule/flowcontrol/AvoidNegationOperatorRule.java
new file mode 100644
index 0000000..0ee5621
--- /dev/null
+++ b/p3c-pmd/src/main/java/com/alibaba/p3c/pmd/lang/java/rule/flowcontrol/AvoidNegationOperatorRule.java
@@ -0,0 +1,46 @@
+/*
+ * Copyright 1999-2017 Alibaba Group.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.alibaba.p3c.pmd.lang.java.rule.flowcontrol;
+
+import com.alibaba.p3c.pmd.lang.AbstractXpathRule;
+import com.alibaba.p3c.pmd.lang.java.util.ViolationUtils;
+
+import net.sourceforge.pmd.lang.ast.Node;
+
+/**
+ * [Recommended] Avoid using the negation operator '!'.
+ * Note: The negation operator is not easy to be quickly understood. There must be a positive
+ * way to represent the same logic.
+ *
+ * @author zenghou.fw
+ * @date 2017/11/21
+ */
+public class AvoidNegationOperatorRule extends AbstractXpathRule {
+    private static final String XPATH = "//UnaryExpressionNotPlusMinus[child::PrimaryExpression"
+        + "//PrimaryPrefix/Expression/RelationalExpression]"
+        + "|//UnaryExpressionNotPlusMinus[child::PrimaryExpression"
+        + "//PrimaryPrefix/Expression/EqualityExpression]";
+
+    public AvoidNegationOperatorRule() {
+        setXPath(XPATH);
+    }
+
+    @Override
+    public void addViolation(Object data, Node node, String arg) {
+        ViolationUtils.addViolationWithPrecisePosition(this, node, data,
+            "java.flowcontrol.AvoidNegationOperatorRule.violation.msg");
+    }
+}
diff --git a/p3c-pmd/src/main/java/com/alibaba/p3c/pmd/lang/java/rule/naming/AbstractClassShouldStartWithAbstractNamingRule.java b/p3c-pmd/src/main/java/com/alibaba/p3c/pmd/lang/java/rule/naming/AbstractClassShouldStartWithAbstractNamingRule.java
index 0e0509e..a549d56 100644
--- a/p3c-pmd/src/main/java/com/alibaba/p3c/pmd/lang/java/rule/naming/AbstractClassShouldStartWithAbstractNamingRule.java
+++ b/p3c-pmd/src/main/java/com/alibaba/p3c/pmd/lang/java/rule/naming/AbstractClassShouldStartWithAbstractNamingRule.java
@@ -29,8 +29,8 @@ import net.sourceforge.pmd.lang.java.ast.ASTClassOrInterfaceDeclaration;
  * @date 2017/04/16
  */
 public class AbstractClassShouldStartWithAbstractNamingRule extends AbstractXpathRule {
-    private static final String XPATH = "//ClassOrInterfaceDeclaration\n"
-        + " [@Abstract='true' and @Interface='false']\n" + " [not (matches(@Image,'^(Abstract|Base).*'))]";
+    private static final String XPATH = "//ClassOrInterfaceDeclaration"
+        + " [@Abstract='true' and @Interface='false'][not (matches(@Image,'^(Abstract|Base).*'))]";
 
     public AbstractClassShouldStartWithAbstractNamingRule() {
         setXPath(XPATH);
diff --git a/p3c-pmd/src/main/java/com/alibaba/p3c/pmd/lang/java/rule/naming/ArrayNamingShouldHaveBracketRule.java b/p3c-pmd/src/main/java/com/alibaba/p3c/pmd/lang/java/rule/naming/ArrayNamingShouldHaveBracketRule.java
index ef09a9c..516b060 100644
--- a/p3c-pmd/src/main/java/com/alibaba/p3c/pmd/lang/java/rule/naming/ArrayNamingShouldHaveBracketRule.java
+++ b/p3c-pmd/src/main/java/com/alibaba/p3c/pmd/lang/java/rule/naming/ArrayNamingShouldHaveBracketRule.java
@@ -28,7 +28,7 @@ import net.sourceforge.pmd.lang.ast.Node;
  * @date 2017/04/16
  */
 public class ArrayNamingShouldHaveBracketRule extends AbstractXpathRule {
-    private static final String XPATH = "//VariableDeclaratorId\n" + "[../..[@Array = 'true']]\n"
+    private static final String XPATH = "//VariableDeclaratorId[../..[@Array = 'true']]"
         + "[../../Type/ReferenceType[@Array != 'true']]";
 
     public ArrayNamingShouldHaveBracketRule() {
diff --git a/p3c-pmd/src/main/java/com/alibaba/p3c/pmd/lang/java/rule/naming/BooleanPropertyShouldNotStartWithIsRule.java b/p3c-pmd/src/main/java/com/alibaba/p3c/pmd/lang/java/rule/naming/BooleanPropertyShouldNotStartWithIsRule.java
index 1e0c96b..368ee6a 100644
--- a/p3c-pmd/src/main/java/com/alibaba/p3c/pmd/lang/java/rule/naming/BooleanPropertyShouldNotStartWithIsRule.java
+++ b/p3c-pmd/src/main/java/com/alibaba/p3c/pmd/lang/java/rule/naming/BooleanPropertyShouldNotStartWithIsRule.java
@@ -30,10 +30,10 @@ import net.sourceforge.pmd.lang.java.ast.ASTVariableDeclaratorId;
  * @date 2017/04/16
  */
 public class BooleanPropertyShouldNotStartWithIsRule extends AbstractXpathRule {
-    private static final String XPATH = "//VariableDeclaratorId\n" + "[(ancestor::ClassOrInterfaceDeclaration)[\n"
-        + "@Interface='false'\n" + "and\n" + "( ends-with(@Image, 'DO')\n" + "or ends-with(@Image, 'DTO')\n"
-        + "or ends-with(@Image, 'VO')\n" + "or ends-with(@Image, 'DAO')\n" + ")\n" + "]]\n"
-        + "[../../../FieldDeclaration/Type/PrimitiveType[@Image = 'boolean']]\n" + "[.[ starts-with(@Image, 'is')]]";
+    private static final String XPATH = "//VariableDeclaratorId[(ancestor::ClassOrInterfaceDeclaration)["
+        + "@Interface='false' and ( ends-with(@Image, 'DO') or ends-with(@Image, 'DTO')"
+        + " or ends-with(@Image, 'VO') or ends-with(@Image, 'DAO'))]]"
+        + "[../../../FieldDeclaration/Type/PrimitiveType[@Image = 'boolean']][.[ starts-with(@Image, 'is')]]";
 
     public BooleanPropertyShouldNotStartWithIsRule() {
         setXPath(XPATH);
diff --git a/p3c-pmd/src/main/java/com/alibaba/p3c/pmd/lang/java/rule/naming/LowerCamelCaseVariableNamingRule.java b/p3c-pmd/src/main/java/com/alibaba/p3c/pmd/lang/java/rule/naming/LowerCamelCaseVariableNamingRule.java
index 087d7a4..bb414af 100644
--- a/p3c-pmd/src/main/java/com/alibaba/p3c/pmd/lang/java/rule/naming/LowerCamelCaseVariableNamingRule.java
+++ b/p3c-pmd/src/main/java/com/alibaba/p3c/pmd/lang/java/rule/naming/LowerCamelCaseVariableNamingRule.java
@@ -21,8 +21,11 @@ import com.alibaba.p3c.pmd.I18nResources;
 import com.alibaba.p3c.pmd.lang.java.rule.AbstractAliRule;
 import com.alibaba.p3c.pmd.lang.java.util.ViolationUtils;
 
+import net.sourceforge.pmd.lang.ast.Node;
+import net.sourceforge.pmd.lang.java.ast.ASTAnnotationTypeDeclaration;
 import net.sourceforge.pmd.lang.java.ast.ASTFieldDeclaration;
 import net.sourceforge.pmd.lang.java.ast.ASTMethodDeclarator;
+import net.sourceforge.pmd.lang.java.ast.ASTTypeDeclaration;
 import net.sourceforge.pmd.lang.java.ast.ASTVariableDeclaratorId;
 
 /**
@@ -40,6 +43,12 @@ public class LowerCamelCaseVariableNamingRule extends AbstractAliRule {
     @Override
     public Object visit(final ASTVariableDeclaratorId node, Object data) {
         // Constant named does not apply to this rule
+        ASTTypeDeclaration typeDeclaration = node.getFirstParentOfType(ASTTypeDeclaration.class);
+        Node jjtGetChild = typeDeclaration.jjtGetChild(0);
+        if (jjtGetChild instanceof ASTAnnotationTypeDeclaration) {
+            return super.visit(node, data);
+        }
+
         ASTFieldDeclaration astFieldDeclaration = node.getFirstParentOfType(ASTFieldDeclaration.class);
         boolean isNotCheck = astFieldDeclaration != null && (astFieldDeclaration.isFinal() || astFieldDeclaration
             .isStatic());
diff --git a/p3c-pmd/src/main/java/com/alibaba/p3c/pmd/lang/java/rule/naming/PackageNamingRule.java b/p3c-pmd/src/main/java/com/alibaba/p3c/pmd/lang/java/rule/naming/PackageNamingRule.java
index d722772..6bd9175 100644
--- a/p3c-pmd/src/main/java/com/alibaba/p3c/pmd/lang/java/rule/naming/PackageNamingRule.java
+++ b/p3c-pmd/src/main/java/com/alibaba/p3c/pmd/lang/java/rule/naming/PackageNamingRule.java
@@ -29,7 +29,7 @@ import net.sourceforge.pmd.lang.ast.Node;
  * @date 2017/04/16
  */
 public class PackageNamingRule extends AbstractXpathRule {
-    private static final String XPATH = "//PackageDeclaration/Name\n"
+    private static final String XPATH = "//PackageDeclaration/Name"
         + "[not (matches(@Image, '^[a-z0-9]+(\\.[a-z][a-z0-9]*)*$'))]";
 
     public PackageNamingRule() {
diff --git a/p3c-pmd/src/main/java/com/alibaba/p3c/pmd/lang/java/rule/naming/ServiceOrDaoClassShouldEndWithImplRule.java b/p3c-pmd/src/main/java/com/alibaba/p3c/pmd/lang/java/rule/naming/ServiceOrDaoClassShouldEndWithImplRule.java
index b9a0b28..35cfd0d 100644
--- a/p3c-pmd/src/main/java/com/alibaba/p3c/pmd/lang/java/rule/naming/ServiceOrDaoClassShouldEndWithImplRule.java
+++ b/p3c-pmd/src/main/java/com/alibaba/p3c/pmd/lang/java/rule/naming/ServiceOrDaoClassShouldEndWithImplRule.java
@@ -29,9 +29,9 @@ import net.sourceforge.pmd.lang.ast.Node;
  * @date 2017/04/16
  */
 public class ServiceOrDaoClassShouldEndWithImplRule extends AbstractXpathRule {
-    private static final String XPATH = "//ClassOrInterfaceDeclaration\n"
+    private static final String XPATH = "//ClassOrInterfaceDeclaration"
         + "[ .[@Interface='false'] and .[@Abstract='false'] and ./ImplementsList/ClassOrInterfaceType[ ends-with(@Image, 'Service') or "
-        + "ends-with(@Image, 'DAO')]]\n"
+        + "ends-with(@Image, 'DAO')]]"
         + "[not(.[ ends-with(@Image, 'Impl')])]";
 
     public ServiceOrDaoClassShouldEndWithImplRule() {
diff --git a/p3c-pmd/src/main/java/com/alibaba/p3c/pmd/lang/java/rule/other/MethodTooLongRule.java b/p3c-pmd/src/main/java/com/alibaba/p3c/pmd/lang/java/rule/other/MethodTooLongRule.java
new file mode 100644
index 0000000..4a276a1
--- /dev/null
+++ b/p3c-pmd/src/main/java/com/alibaba/p3c/pmd/lang/java/rule/other/MethodTooLongRule.java
@@ -0,0 +1,71 @@
+/*
+ * Copyright 1999-2017 Alibaba Group.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.alibaba.p3c.pmd.lang.java.rule.other;
+
+import com.alibaba.p3c.pmd.I18nResources;
+import com.alibaba.p3c.pmd.lang.java.rule.AbstractAliRule;
+import com.alibaba.p3c.pmd.lang.java.util.ViolationUtils;
+
+import net.sourceforge.pmd.lang.ast.Node;
+import net.sourceforge.pmd.lang.java.ast.ASTAnnotation;
+import net.sourceforge.pmd.lang.java.ast.ASTClassOrInterfaceBodyDeclaration;
+import net.sourceforge.pmd.lang.java.ast.ASTMethodDeclaration;
+import net.sourceforge.pmd.lang.java.ast.Token;
+
+/**
+ * [Recommended] The total number of lines for a method should not be more than 80.
+ * Note: The total number of lines, including the method signature, closing brace, codes, comments,
+ * blank lines, line breaks and any invisible lines, should not be more than 80.
+ *
+ * @author keriezhang
+ * @date 2018/1/9
+ */
+public class MethodTooLongRule extends AbstractAliRule {
+
+    private static final int MAX_LINE_COUNT = 80;
+    private static final String ANNOTATION_PREFIX = "@";
+
+    @Override
+    public Object visit(ASTMethodDeclaration node, Object data) {
+        // Include method modifiers.
+        ASTClassOrInterfaceBodyDeclaration classOrInterfaceBodyDecl =
+            (ASTClassOrInterfaceBodyDeclaration)node.jjtGetParent();
+
+        int startLine = classOrInterfaceBodyDecl.getBeginLine();
+        int endLine = classOrInterfaceBodyDecl.getEndLine();
+
+        Node firstChild = classOrInterfaceBodyDecl.jjtGetChild(0);
+        // Method has annotation
+        if (firstChild instanceof ASTAnnotation) {
+            Token firstToken = (Token)classOrInterfaceBodyDecl.jjtGetFirstToken();
+            // If annotation is before modifier, exclude the annotation.
+            if (ANNOTATION_PREFIX.equals(firstToken.image)) {
+                ASTAnnotation annotation = (ASTAnnotation)firstChild;
+                Token lastToken = (Token)annotation.jjtGetLastToken();
+
+                // First token after annotation. The same line or next line after annotation.
+                Token next = lastToken.next;
+                startLine = next.beginLine;
+            }
+        }
+
+        if (endLine - startLine + 1 > MAX_LINE_COUNT) {
+            ViolationUtils.addViolationWithPrecisePosition(this, node, data,
+                I18nResources.getMessage("java.other.MethodTooLongRule.violation.msg", node.getName()));
+        }
+        return super.visit(node, data);
+    }
+}
diff --git a/p3c-pmd/src/main/java/com/alibaba/p3c/pmd/lang/java/rule/other/UseRightCaseForDateFormatRule.java b/p3c-pmd/src/main/java/com/alibaba/p3c/pmd/lang/java/rule/other/UseRightCaseForDateFormatRule.java
new file mode 100644
index 0000000..053f640
--- /dev/null
+++ b/p3c-pmd/src/main/java/com/alibaba/p3c/pmd/lang/java/rule/other/UseRightCaseForDateFormatRule.java
@@ -0,0 +1,76 @@
+package com.alibaba.p3c.pmd.lang.java.rule.other;
+
+import com.alibaba.p3c.pmd.lang.AbstractXpathRule;
+
+import net.sourceforge.pmd.lang.ast.Node;
+import net.sourceforge.pmd.lang.java.ast.ASTLiteral;
+import org.apache.commons.lang3.StringUtils;
+
+/**
+ * [Mandatory] When doing date formatting, "y" should be written in lowercase for "year" in a pattern statement.
+ *
+ * Note: When doing date formatting, "yyyy" represents the day in which year, while "YYYY" represents the week in which
+ * year (a concept introduced in JDK7). If a week is across two years, the returning "YYYY"represents the next year.
+ * Some more points need to be notices:
+ * Uppercase "M" stands for month.
+ * Lowercase "m" stands for minute.
+ * Uppercase "H" stands for 24-hour clock.
+ * Lowercase "h" stands for 12-hour clock.
+ *
+ * Positive Example: Example pattern for date formatting:
+ * new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
+ *
+ * Counter Example: Someone applied "YYYY/MM/dd" pattern for date formatting, and the execution result of 2017/12/31 was
+ * 2018/12/31, leading to a serious failure.
+ *
+ * @author huawen.phw
+ * @date 2018/1/9
+ */
+public class UseRightCaseForDateFormatRule extends AbstractXpathRule {
+
+    private static final String NEW_XPATH
+        = "//AllocationExpression/ClassOrInterfaceType[@Image='SimpleDateFormat']/../Arguments/ArgumentList"
+        + "/Expression/PrimaryExpression/PrimaryPrefix/*";
+    private static final String LOW_CASE_4Y = "yyyy";
+    private static final String LOW_CASE_2Y = "yy";
+    private static final String START_QUOTE = "\"";
+
+    public UseRightCaseForDateFormatRule() {
+        setXPath(NEW_XPATH);
+    }
+
+    @Override
+    public void addViolation(Object data, Node node, String arg) {
+        checkNode(node, data);
+    }
+
+    /**
+     * 暂只检查4个y和2个y开头的日期格式化字符串参数，不考虑其他类型
+     *
+     * @param argNode
+     * @param data
+     */
+    private void checkNode(Node argNode, Object data) {
+        String image = "";
+        if (argNode instanceof ASTLiteral) {
+            image = argNode.getImage();
+        }
+        // 限定只验证字符串，其他如参数、变量等均不考虑
+        if (StringUtils.isEmpty(image) || !image.startsWith(START_QUOTE)) {
+            return;
+        }
+        image = image.replace("\"", "");
+        String lowerCaseTmp = image.toLowerCase();
+        if (!image.startsWith(LOW_CASE_4Y) && lowerCaseTmp.startsWith(LOW_CASE_4Y)) {
+            addViolationWithMessage(data, argNode,
+                "java.other.UseRightCaseForDateFormatRule.rule.msg",
+                new Object[] {image});
+        } else if (!image.startsWith(LOW_CASE_2Y) && lowerCaseTmp.startsWith(LOW_CASE_2Y)) {
+            addViolationWithMessage(data, argNode,
+                "java.other.UseRightCaseForDateFormatRule.rule.msg",
+                new Object[] {image});
+        } else {
+            //暂不考虑
+        }
+    }
+}
diff --git a/p3c-pmd/src/main/resources/messages.xml b/p3c-pmd/src/main/resources/messages.xml
index 19a9e1f..4289746 100644
--- a/p3c-pmd/src/main/resources/messages.xml
+++ b/p3c-pmd/src/main/resources/messages.xml
@@ -207,6 +207,16 @@
         <![CDATA[说明：很多if语句内的逻辑相当复杂，阅读者需要分析条件表达式的最终结果，才能明确什么样的条件执行什么样的语句，那么，如果阅读者分析逻辑表达式错误呢？]]>
     </entry>
 
+    <entry key="java.flowcontrol.AvoidNegationOperatorRule.violation.msg">
+        <![CDATA["!"运算符不利于快速理解。]]>
+    </entry>
+    <entry key="java.flowcontrol.AvoidNegationOperatorRule.rule.msg">
+        <![CDATA[避免采用取反逻辑运算符。]]>
+    </entry>
+    <entry key="java.flowcontrol.AvoidNegationOperatorRule.rule.desc">
+        <![CDATA[说明: 取反逻辑不利于快速理解，并且取反逻辑写法必然存在对应的正向逻辑写法。]]>
+    </entry>
+
     <!-- set -->
     <entry key="java.set.ClassCastExceptionWithSubListToArrayListRule.violation.msg">
         <![CDATA[【%s】的结果不可强转成ArrayList]]>
@@ -411,7 +421,7 @@
         <![CDATA[所有的枚举类型字段必须要有注释，说明每个数据项的用途。]]>
     </entry>
     <entry key="java.comment.EnumConstantsMustHaveCommentRule.violation.msg">
-        <![CDATA[枚举字段【%s】缺少注释信息]]>
+        <![CDATA[枚举【%s】的字段缺少注释信息]]>
     </entry>
 
     <entry key="java.comment.RemoveCommentedCodeRule.rule.msg">
@@ -461,6 +471,27 @@
         <![CDATA[注意 Math.random() 这个方法返回是double类型，注意取值的范围[0,1)（能够取到零值，注意除零异常），如果想获取整数类型的随机数，不要将x放大10的若干倍然后取整，直接使用Random对象的nextInt或者nextLong方法。]]>
     </entry>
 
+    <entry key="java.other.MethodTooLongRule.rule.msg">
+        <![CDATA[单个方法的总行数不超过80行。]]>
+    </entry>
+
+    <entry key="java.other.MethodTooLongRule.rule.desc">
+        <![CDATA[
+说明：包括方法签名、结束右大括号、方法内代码、注释、空行、回车及任何不可见字符的总行数不超过80行。
+        ]]>
+    </entry>
+
+    <entry key="java.other.MethodTooLongRule.violation.msg">
+        <![CDATA[方法【%s】的总行数不要超过80行。]]>
+    </entry>
+
+    <entry key="java.other.UseRightCaseForDateFormatRule.rule.msg">
+        <![CDATA[日期格式化字符串[%s]使用错误，应注意使用小写‘y’表示当天所在的年，大写‘Y’代表week in which year。]]>
+    </entry>
+    <entry key="java.other.UseRightCaseForDateFormatRule.rule.desc">
+        <![CDATA[日期格式化时，yyyy表示当天所在的年，而大写的YYYY代表是week in which year（JDK7之后引入的概念），意思是当天所在的周属于的年份，一周从周日开始，周六结束，只要本周跨年，返回的YYYY就是下一年。]]>
+    </entry>
+
     <!-- other -->
     <entry key="vm.other.UseQuietReferenceNotationRule.rule.msg">
         <![CDATA[后台输送给页面的变量必须加感叹号，${var}——中间加感叹号！。]]>
diff --git a/p3c-pmd/src/main/resources/messages_en.xml b/p3c-pmd/src/main/resources/messages_en.xml
index 80db028..1127f96 100644
--- a/p3c-pmd/src/main/resources/messages_en.xml
+++ b/p3c-pmd/src/main/resources/messages_en.xml
@@ -209,6 +209,16 @@ Note: Below are the problems created by usage of Executors for thread pool creat
         <![CDATA[Note: Logic within many if statements are very complicated. Readers need to analyze the final results of the conditional expression to decide what statement is to be executed in certain conditions.]]>
     </entry>
 
+    <entry key="java.flowcontrol.AvoidNegationOperatorRule.violation.msg">
+        <![CDATA[The negation operator is not easy to be quickly understood.]]>
+    </entry>
+    <entry key="java.flowcontrol.AvoidNegationOperatorRule.rule.msg">
+        <![CDATA[Avoid using the negation operator '!'.]]>
+    </entry>
+    <entry key="java.flowcontrol.AvoidNegationOperatorRule.rule.desc">
+        <![CDATA[Note: The negation operator is not easy to be quickly understood. There must be a positive way to represent the same logic.]]>
+    </entry>
+
     <!-- set -->
     <entry key="java.set.ClassCastExceptionWithSubListToArrayListRule.violation.msg">
         <![CDATA[The result of [%s] can't cast in class ArrayList]]>
@@ -411,7 +421,7 @@ The format of date is 'yyyy/MM/dd'.
         <![CDATA[All enumeration type fields should be commented as Javadoc style.]]>
     </entry>
     <entry key="java.comment.EnumConstantsMustHaveCommentRule.violation.msg">
-        <![CDATA[enum [%s] should have javadoc]]>
+        <![CDATA[fields of enum [%s] should have javadoc]]>
     </entry>
 
     <entry key="java.comment.RemoveCommentedCodeRule.rule.msg">
@@ -462,6 +472,29 @@ Note: In order to get a more accurate time, use System.nanoTime(). In JDK8, use
         <![CDATA[The return type of Math.random() is double, value range is 0<=x<1 (0 is possible). If a random integer is required, do not multiply x by 10 then round the result. The correct way is to use nextInt or nextLong method which belong to Random Object.]]>
     </entry>
 
+    <entry key="java.other.MethodTooLongRule.rule.msg">
+        <![CDATA[The total number of lines for a method should not be more than 80.]]>
+    </entry>
+
+    <entry key="java.other.MethodTooLongRule.rule.desc">
+        <![CDATA[
+Note: The total number of lines, including the method signature, closing brace, codes, comments, blank lines, line breaks and any invisible lines, should not be more than 80.
+        ]]>
+    </entry>
+
+    <entry key="java.other.MethodTooLongRule.violation.msg">
+        <![CDATA[The total number of lines for method [%s] should not be more than 80.]]>
+    </entry>
+
+    <entry key="java.other.UseRightCaseForDateFormatRule.rule.msg">
+        <![CDATA[Date format string [%s] is error,When doing date formatting, 'y' should be written in lowercase for 'year'.]]>
+    </entry>
+    <entry key="java.other.UseRightCaseForDateFormatRule.rule.desc">
+        <![CDATA[When doing date formatting, "yyyy" represents the day in which year, while "YYYY" represents the week in which
+ * year (a concept introduced in JDK7). If a week is across two years, the returning "YYYY"represents the next year.]]>
+    </entry>
+
+
     <!--other -->
     <entry key="vm.other.UseQuietReferenceNotationRule.rule.msg">
         <![CDATA[Variables must add exclamatory mark when passing to velocity engine from backend, ${var}--add '!' after '$'.]]>
@@ -475,4 +508,4 @@ Note: If attribute is null or does not exist, ${var} will be shown directly on w
         <![CDATA[variable [%s] should add ! after $]]>
     </entry>
 
-</properties>
\ No newline at end of file
+</properties>
diff --git a/p3c-pmd/src/main/resources/rulesets/java/ali-flowcontrol.xml b/p3c-pmd/src/main/resources/rulesets/java/ali-flowcontrol.xml
index 2792ccb..093e326 100644
--- a/p3c-pmd/src/main/resources/rulesets/java/ali-flowcontrol.xml
+++ b/p3c-pmd/src/main/resources/rulesets/java/ali-flowcontrol.xml
@@ -64,4 +64,30 @@ Positive example:
         </example>
     </rule>
 
+    <rule name="AvoidNegationOperatorRule"
+          language="java"
+          message="java.flowcontrol.AvoidNegationOperatorRule.rule.msg"
+          class="com.alibaba.p3c.pmd.lang.java.rule.flowcontrol.AvoidNegationOperatorRule">
+        <description>java.flowcontrol.AvoidNegationOperatorRule.rule.desc</description>
+        <priority>3</priority>
+
+        <example>
+            <![CDATA[
+Negative example:
+    // Use `if (!(x >= 628))` to represent that x is less than 628.
+    if (!(x >= 628)) {
+        // ...
+    }
+			]]>
+        </example>
+        <example>
+            <![CDATA[
+Positive example:
+    // Use `if (x < 628)` to represent that x is less than 628.
+    if (x < 628)) {
+        // ...
+    }
+			]]>
+        </example>
+    </rule>
 </ruleset>
diff --git a/p3c-pmd/src/main/resources/rulesets/java/ali-other.xml b/p3c-pmd/src/main/resources/rulesets/java/ali-other.xml
index af54d86..66da689 100644
--- a/p3c-pmd/src/main/resources/rulesets/java/ali-other.xml
+++ b/p3c-pmd/src/main/resources/rulesets/java/ali-other.xml
@@ -79,4 +79,29 @@ Positive example:
         </example>
     </rule>
 
+    <rule name="MethodTooLongRule" language="java"
+          message="java.other.MethodTooLongRule.rule.msg"
+          class="com.alibaba.p3c.pmd.lang.java.rule.other.MethodTooLongRule">
+        <description>java.other.MethodTooLongRule.rule.desc</description>
+        <priority>3</priority>
+    </rule>
+
+    <rule name="UseRightCaseForDateFormatRule" language="java"
+          message="java.other.UseRightCaseForDateFormatRule.rule.msg"
+          class="com.alibaba.p3c.pmd.lang.java.rule.other.UseRightCaseForDateFormatRule">
+        <description>java.other.UseRightCaseForDateFormatRule.rule.desc</description>
+        <priority>2</priority>
+        <example>
+            <![CDATA[
+Negative example:
+    SimpleDateFormat format = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
+ ]]>
+        </example>
+        <example>
+            <![CDATA[
+Positive example:
+        SimpleDateFormat format = new SimpleDateFormat("YYYY-mm-dd HH:mm:ss");
+]]>
+        </example>
+    </rule>
 </ruleset>
diff --git a/p3c-pmd/src/test/java/com/alibaba/p3c/pmd/lang/java/rule/flowcontrol/FlowControlRuleTest.java b/p3c-pmd/src/test/java/com/alibaba/p3c/pmd/lang/java/rule/flowcontrol/FlowControlRuleTest.java
index 3face90..c679434 100644
--- a/p3c-pmd/src/test/java/com/alibaba/p3c/pmd/lang/java/rule/flowcontrol/FlowControlRuleTest.java
+++ b/p3c-pmd/src/test/java/com/alibaba/p3c/pmd/lang/java/rule/flowcontrol/FlowControlRuleTest.java
@@ -26,7 +26,6 @@ import net.sourceforge.pmd.testframework.SimpleAggregatorTst;
  */
 public class FlowControlRuleTest extends SimpleAggregatorTst {
 
-
     private static final String RULESET = "java-ali-flowcontrol";
 
     @Override
@@ -34,5 +33,6 @@ public class FlowControlRuleTest extends SimpleAggregatorTst {
         addRule(RULESET, "SwitchStatementRule");
         addRule(RULESET, "NeedBraceRule");
         addRule(RULESET, "AvoidComplexConditionRule");
+        addRule(RULESET, "AvoidNegationOperatorRule");
     }
 }
diff --git a/p3c-pmd/src/test/java/com/alibaba/p3c/pmd/lang/java/rule/other/OtherRulesTest.java b/p3c-pmd/src/test/java/com/alibaba/p3c/pmd/lang/java/rule/other/OtherRulesTest.java
index 181c4f6..ddcc714 100644
--- a/p3c-pmd/src/test/java/com/alibaba/p3c/pmd/lang/java/rule/other/OtherRulesTest.java
+++ b/p3c-pmd/src/test/java/com/alibaba/p3c/pmd/lang/java/rule/other/OtherRulesTest.java
@@ -16,6 +16,7 @@
 package com.alibaba.p3c.pmd.lang.java.rule.other;
 
 import net.sourceforge.pmd.testframework.SimpleAggregatorTst;
+import org.junit.Test;
 
 /**
  * Test for other java rules.
@@ -26,7 +27,7 @@ import net.sourceforge.pmd.testframework.SimpleAggregatorTst;
  */
 public class OtherRulesTest extends SimpleAggregatorTst {
 
-    private static final String RULESET = "java-ali-other";
+    public static final String RULESET = "java-ali-other";
 
     @Override
     public void setUp() {
@@ -34,5 +35,14 @@ public class OtherRulesTest extends SimpleAggregatorTst {
         addRule(RULESET, "AvoidNewDateGetTimeRule");
         addRule(RULESET, "AvoidPatternCompileInMethodRule");
         addRule(RULESET, "AvoidMissUseOfMathRandomRule");
+        addRule(RULESET, "MethodTooLongRule");
+        addRule(RULESET,"UseRightCaseForDateFormatRule");
     }
+
+    @Test
+    public void testUseRightCaseForDateFormatRule() {
+        runTests(findRule(RULESET, "UseRightCaseForDateFormatRule"));
+    }
+
+
 }
diff --git a/p3c-pmd/src/test/java/com/alibaba/p3c/pmd/lang/java/rule/other/UseRightCaseForDateFormatRuleTest.java b/p3c-pmd/src/test/java/com/alibaba/p3c/pmd/lang/java/rule/other/UseRightCaseForDateFormatRuleTest.java
new file mode 100644
index 0000000..fc9ae19
--- /dev/null
+++ b/p3c-pmd/src/test/java/com/alibaba/p3c/pmd/lang/java/rule/other/UseRightCaseForDateFormatRuleTest.java
@@ -0,0 +1,25 @@
+package com.alibaba.p3c.pmd.lang.java.rule.other;
+
+import com.alibaba.p3c.pmd.testframework.ExtendRuleTst;
+
+import net.sourceforge.pmd.Rule;
+import org.junit.Test;
+
+/**
+ * @author huawen.phw
+ * @date 2018/2/1
+ * Description:
+ */
+public class UseRightCaseForDateFormatRuleTest extends ExtendRuleTst {
+
+    @Test
+    public void testExam1() {
+        String ruleName = "UseRightCaseForDateFormatRule";
+        String examFilePath = "java/" + ruleName + "Exam.java";
+        String expectedVioLineNumbers = "16,26,32,34,36";
+
+        Rule rule = findRule(OtherRulesTest.RULESET, ruleName);
+        runTest(rule, examFilePath, expectedVioLineNumbers);
+    }
+
+}
diff --git a/p3c-pmd/src/test/java/com/alibaba/p3c/pmd/testframework/ExtendRuleTst.java b/p3c-pmd/src/test/java/com/alibaba/p3c/pmd/testframework/ExtendRuleTst.java
new file mode 100644
index 0000000..1ab0f16
--- /dev/null
+++ b/p3c-pmd/src/test/java/com/alibaba/p3c/pmd/testframework/ExtendRuleTst.java
@@ -0,0 +1,91 @@
+package com.alibaba.p3c.pmd.testframework;
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.nio.charset.Charset;
+import java.util.ArrayList;
+import java.util.List;
+
+import net.sourceforge.pmd.Rule;
+import net.sourceforge.pmd.testframework.RuleTst;
+import net.sourceforge.pmd.testframework.TestDescriptor;
+import org.apache.commons.io.IOUtils;
+import org.apache.commons.lang3.StringUtils;
+
+/**
+ * @author huawen.phw
+ * @date 2018/2/1
+ * Description:
+ */
+public class ExtendRuleTst extends RuleTst {
+
+
+    public void runTest(Rule rule, String examFilePath, String expectedVioLineNumbers) {
+        TestDescriptor descriptor = extractTestsFromJavaFile(rule, examFilePath
+            , expectedVioLineNumbers);
+        if (descriptor != null) {
+            runTest(descriptor);
+        }
+    }
+
+    /**
+     * @param rule
+     * @return
+     */
+    public TestDescriptor extractTestsFromJavaFile(Rule rule) {
+        return extractTestsFromJavaFile(rule, "java/" + getCleanRuleName(rule) + ".java");
+    }
+
+    /**
+     * @param rule
+     * @param javaFilePath
+     * @return
+     */
+    public TestDescriptor extractTestsFromJavaFile(Rule rule, String javaFilePath) {
+        return extractTestsFromJavaFile(rule, javaFilePath, "");
+    }
+
+    public TestDescriptor extractTestsFromJavaFile(Rule rule, String javaFilePath, String expectedLineNumbers) {
+        if (StringUtils.isEmpty(javaFilePath)) {
+            return null;
+        }
+        //append file suffix
+        if (!javaFilePath.toLowerCase().endsWith(".java")) {
+            javaFilePath = javaFilePath + ".java";
+        }
+        InputStream inputStream = getClass().getResourceAsStream(javaFilePath);
+        if (inputStream == null) {
+            throw new RuntimeException("Couldn't find " + javaFilePath);
+        }
+
+        String fileContents = null;
+        try {
+            fileContents = IOUtils.toString(inputStream, Charset.defaultCharset());
+        } catch (IOException e) {
+            e.printStackTrace();
+        } finally {
+            IOUtils.closeQuietly(inputStream);
+        }
+
+        if (fileContents == null) {
+            return null;
+        }
+        List<Integer> expectedLineNumber = getExpectedLineNumbers(expectedLineNumbers);
+        TestDescriptor descriptor = new TestDescriptor(fileContents, rule.getDescription(),
+            expectedLineNumber.size(), rule);
+        descriptor.setExpectedLineNumbers(expectedLineNumber);
+        return descriptor;
+    }
+
+    public List<Integer> getExpectedLineNumbers(String lineNumbers) {
+        List<Integer> expectedLineNumbers = new ArrayList<>();
+        for (String n : lineNumbers.split(" *, *")) {
+            try {
+                expectedLineNumbers.add(Integer.valueOf(n));
+            } catch (Exception e) {
+                e.printStackTrace();
+            }
+        }
+        return expectedLineNumbers;
+    }
+}
diff --git a/p3c-pmd/src/test/java/com/alibaba/p3c/pmd/testframework/ExtendSimpleAggregatorTst.java b/p3c-pmd/src/test/java/com/alibaba/p3c/pmd/testframework/ExtendSimpleAggregatorTst.java
new file mode 100644
index 0000000..dedc7c1
--- /dev/null
+++ b/p3c-pmd/src/test/java/com/alibaba/p3c/pmd/testframework/ExtendSimpleAggregatorTst.java
@@ -0,0 +1,15 @@
+package com.alibaba.p3c.pmd.testframework;
+
+import net.sourceforge.pmd.Rule;
+import net.sourceforge.pmd.testframework.SimpleAggregatorTst;
+
+/**
+ *
+ * @author huawen.phw
+ * @date 2018/2/1
+ * Description: 扩展framework，runTest支持检查.java文件
+ */
+public  class ExtendSimpleAggregatorTst extends SimpleAggregatorTst {
+
+
+}
diff --git a/p3c-pmd/src/test/resources/com/alibaba/p3c/pmd/lang/java/rule/comment/xml/ClassMustHaveAuthorRule.xml b/p3c-pmd/src/test/resources/com/alibaba/p3c/pmd/lang/java/rule/comment/xml/ClassMustHaveAuthorRule.xml
index a1dbec9..fe1e4ea 100644
--- a/p3c-pmd/src/test/resources/com/alibaba/p3c/pmd/lang/java/rule/comment/xml/ClassMustHaveAuthorRule.xml
+++ b/p3c-pmd/src/test/resources/com/alibaba/p3c/pmd/lang/java/rule/comment/xml/ClassMustHaveAuthorRule.xml
@@ -1,93 +1,93 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <test-data>
 
-    <code-fragment id="class-without-author"><![CDATA[
+	<code-fragment id="class-without-author"><![CDATA[
 public class ClassMustHaveAuthorRule {}
     ]]>
-    </code-fragment>
+	</code-fragment>
 
-    <test-code>
-        <description>Class without author.</description>
-        <expected-problems>1</expected-problems>
-        <expected-linenumbers>1</expected-linenumbers>
-        <code-ref id="class-without-author" />
-    </test-code>
+	<test-code>
+		<description>Class without author.</description>
+		<expected-problems>1</expected-problems>
+		<expected-linenumbers>1</expected-linenumbers>
+		<code-ref id="class-without-author" />
+	</test-code>
 
 
-    <code-fragment id="class-with-author"><![CDATA[
+	<code-fragment id="class-with-author"><![CDATA[
 /**
  * @author keriezhang
  * @date 2017/07/18
  */
 public class ClassMustHaveAuthorRule {}
     ]]>
-    </code-fragment>
-    <test-code>
-        <description>Class with author.</description>
-        <expected-problems>0</expected-problems>
-        <code-ref id="class-with-author" />
-    </test-code>
-
-    <code-fragment id="class-with-date"><![CDATA[
+	</code-fragment>
+	<test-code>
+		<description>Class with author.</description>
+		<expected-problems>0</expected-problems>
+		<code-ref id="class-with-author" />
+	</test-code>
+	
+	<code-fragment id="class-with-date"><![CDATA[
 /**
  * @date 2016/12/14
  */
 public class ClassMustHaveAuthorRule {}
     ]]>
-    </code-fragment>
-    <test-code>
-        <description>Class with date.</description>
-        <expected-problems>1</expected-problems>
-        <expected-linenumbers>4</expected-linenumbers>
-        <code-ref id="class-with-date" />
-    </test-code>
-
-    <code-fragment id="class-with-author-and-date"><![CDATA[
+	</code-fragment>
+	<test-code>
+		<description>Class with date.</description>
+		<expected-problems>1</expected-problems>
+		<expected-linenumbers>4</expected-linenumbers>
+		<code-ref id="class-with-date" />
+	</test-code>
+	
+	<code-fragment id="class-with-author-and-date"><![CDATA[
 /**
  * @author keriezhang
  * @date 2016/12/14
  */
 public class ClassMustHaveAuthorRule {}
     ]]>
-    </code-fragment>
-    <test-code>
-        <description>Class with author and date.</description>
-        <expected-problems>0</expected-problems>
-        <code-ref id="class-with-author-and-date" />
-    </test-code>
+	</code-fragment>
+	<test-code>
+		<description>Class with author and date.</description>
+		<expected-problems>0</expected-problems>
+		<code-ref id="class-with-author-and-date" />
+	</test-code>
 
-    <code-fragment id="class-with-inner-class"><![CDATA[
+	<code-fragment id="class-with-inner-class"><![CDATA[
 /**
  * @author keriezhang
  * @date 2016/12/14
  */
 public class Outer_Demo {
-   public class Inner_Demo {
-   }
+    public class Inner_Demo {
+    }
 }
     ]]>
-    </code-fragment>
-    <test-code>
-        <description>Class with inner class.</description>
-        <expected-problems>0</expected-problems>
-        <code-ref id="class-with-inner-class" />
-    </test-code>
+	</code-fragment>
+	<test-code>
+		<description>Class with inner class.</description>
+		<expected-problems>0</expected-problems>
+		<code-ref id="class-with-inner-class" />
+	</test-code>
 
-    <code-fragment id="enum-without-author"><![CDATA[
+	<code-fragment id="enum-without-author"><![CDATA[
 public enum Day {
     SUNDAY, MONDAY, TUESDAY, WEDNESDAY,
     THURSDAY, FRIDAY, SATURDAY
 }
     ]]>
-    </code-fragment>
-    <test-code>
-        <description>Enum without author</description>
-        <expected-problems>1</expected-problems>
-        <expected-linenumbers>1</expected-linenumbers>
-        <code-ref id="enum-without-author" />
-    </test-code>
+	</code-fragment>
+	<test-code>
+		<description>Enum without author</description>
+		<expected-problems>1</expected-problems>
+		<expected-linenumbers>1</expected-linenumbers>
+		<code-ref id="enum-without-author" />
+	</test-code>
 
-    <code-fragment id="enum-with-author"><![CDATA[
+	<code-fragment id="enum-with-author"><![CDATA[
 /**
  * @author keriezhang
  * @date 2016/12/14
@@ -97,14 +97,14 @@ public enum Day {
     THURSDAY, FRIDAY, SATURDAY
 }
     ]]>
-    </code-fragment>
-    <test-code>
-        <description>Enum with author</description>
-        <expected-problems>0</expected-problems>
-        <code-ref id="enum-with-author" />
-    </test-code>
+	</code-fragment>
+	<test-code>
+		<description>Enum with author</description>
+		<expected-problems>0</expected-problems>
+		<code-ref id="enum-with-author" />
+	</test-code>
 
-    <code-fragment id="enum-in-class"><![CDATA[
+	<code-fragment id="enum-in-class"><![CDATA[
 /**
  * @author keriezhang
  * @date 2016/12/14
@@ -117,14 +117,14 @@ public class Vehicle {
     }
 }
     ]]>
-    </code-fragment>
-    <test-code>
-        <description>Enum in class</description>
-        <expected-problems>0</expected-problems>
-        <code-ref id="enum-in-class" />
-    </test-code>
+	</code-fragment>
+	<test-code>
+		<description>Enum in class</description>
+		<expected-problems>0</expected-problems>
+		<code-ref id="enum-in-class" />
+	</test-code>
 
-    <code-fragment id="enum-in-interface"><![CDATA[
+	<code-fragment id="enum-in-interface"><![CDATA[
 /**
  * @author keriezhang
  * @date 2016/12/14
@@ -137,14 +137,14 @@ public interface Vehicle {
     }
 }
     ]]>
-    </code-fragment>
-    <test-code>
-        <description>Enum in interface</description>
-        <expected-problems>0</expected-problems>
-        <code-ref id="enum-in-interface" />
-    </test-code>
+	</code-fragment>
+	<test-code>
+		<description>Enum in interface</description>
+		<expected-problems>0</expected-problems>
+		<code-ref id="enum-in-interface" />
+	</test-code>
 
-    <code-fragment id="upper-case-author-annotation"><![CDATA[
+	<code-fragment id="upper-case-author-annotation"><![CDATA[
 /**
  * @Author keriezhang
  * @date 2016/12/14
@@ -157,11 +157,11 @@ public interface Vehicle {
     }
 }
     ]]>
-    </code-fragment>
-    <test-code>
-        <description>Uppercase author annotation</description>
-        <expected-problems>0</expected-problems>
-        <code-ref id="upper-case-author-annotation" />
-    </test-code>
+	</code-fragment>
+	<test-code>
+		<description>Uppercase author annotation</description>
+		<expected-problems>0</expected-problems>
+		<code-ref id="upper-case-author-annotation" />
+	</test-code>
 
-</test-data>
\ No newline at end of file
+</test-data>
diff --git a/p3c-pmd/src/test/resources/com/alibaba/p3c/pmd/lang/java/rule/comment/xml/CommentsMustBeJavadocFormatRule.xml b/p3c-pmd/src/test/resources/com/alibaba/p3c/pmd/lang/java/rule/comment/xml/CommentsMustBeJavadocFormatRule.xml
index 236c592..cab7aab 100644
--- a/p3c-pmd/src/test/resources/com/alibaba/p3c/pmd/lang/java/rule/comment/xml/CommentsMustBeJavadocFormatRule.xml
+++ b/p3c-pmd/src/test/resources/com/alibaba/p3c/pmd/lang/java/rule/comment/xml/CommentsMustBeJavadocFormatRule.xml
@@ -1,22 +1,22 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <test-data>
 
-    <code-fragment id="class-without-comments"><![CDATA[
+	<code-fragment id="class-without-comments"><![CDATA[
 public class CommentsMustBeJavadocFormat {
     private String name;
     public void getName() {}
 }
     ]]>
-    </code-fragment>
+	</code-fragment>
 
-    <test-code>
-        <description>Class have no comment.</description>
-        <expected-problems>0</expected-problems>
-        <code-ref id="class-without-comments" />
-    </test-code>
+	<test-code>
+		<description>Class have no comment.</description>
+		<expected-problems>0</expected-problems>
+		<code-ref id="class-without-comments" />
+	</test-code>
 
 
-    <code-fragment id="class-with-non-javadoc-comments"><![CDATA[
+	<code-fragment id="class-with-non-javadoc-comments"><![CDATA[
 // a comment
 // a comment
 public class CommentsMustBeJavadocFormat {
@@ -26,17 +26,17 @@ public class CommentsMustBeJavadocFormat {
     public void getName() {}
 }
     ]]>
-    </code-fragment>
+	</code-fragment>
 
-    <test-code>
-        <description>Class have non-javadoc comments.</description>
-        <expected-problems>3</expected-problems>
-        <expected-linenumbers>2,4,6</expected-linenumbers>
-        <code-ref id="class-with-non-javadoc-comments" />
-    </test-code>
+	<test-code>
+		<description>Class have non-javadoc comments.</description>
+		<expected-problems>3</expected-problems>
+		<expected-linenumbers>2,4,6</expected-linenumbers>
+		<code-ref id="class-with-non-javadoc-comments" />
+	</test-code>
 
 
-    <code-fragment id="class-with-javadoc-comments"><![CDATA[
+	<code-fragment id="class-with-javadoc-comments"><![CDATA[
 /**
  * test
  */
@@ -52,15 +52,15 @@ public class CommentsMustBeJavadocFormat {
     public void getName() {}
 }
     ]]>
-    </code-fragment>
-    <test-code>
-        <description>Class have javadoc comments.</description>
-        <expected-problems>0</expected-problems>
-        <code-ref id="class-with-javadoc-comments" />
-    </test-code>
+	</code-fragment>
+	<test-code>
+		<description>Class have javadoc comments.</description>
+		<expected-problems>0</expected-problems>
+		<code-ref id="class-with-javadoc-comments" />
+	</test-code>
 
 
-    <code-fragment id="anonymous-class-with-non-javadoc-comments"><![CDATA[
+	<code-fragment id="anonymous-class-with-non-javadoc-comments"><![CDATA[
 // comment of outer class
 public class Outer_class {
    // comment of method of outer class
@@ -76,17 +76,17 @@ public class Outer_class {
    }
 }
     ]]>
-    </code-fragment>
-    <test-code>
-        <description>Anonymous Inner Class have non javadoc comments.
-        </description>
-        <expected-problems>2</expected-problems>
-        <expected-linenumbers>1,3</expected-linenumbers>
-        <code-ref id="anonymous-class-with-non-javadoc-comments" />
-    </test-code>
+	</code-fragment>
+	<test-code>
+		<description>Anonymous Inner Class have non javadoc comments.
+		</description>
+		<expected-problems>2</expected-problems>
+		<expected-linenumbers>1,3</expected-linenumbers>
+		<code-ref id="anonymous-class-with-non-javadoc-comments" />
+	</test-code>
 
 
-    <code-fragment id="non-javadoc-comments-before-package-and-import"><![CDATA[
+	<code-fragment id="non-javadoc-comments-before-package-and-import"><![CDATA[
 /*
  * Created on 18 nov. 2004
  */
@@ -104,15 +104,15 @@ public class PMDProjectPropertyPage extends PropertyPage {
 }
 
     ]]>
-    </code-fragment>
-    <test-code>
-        <description>Non-javadoc comments before package and import
-        </description>
-        <expected-problems>0</expected-problems>
-        <code-ref id="non-javadoc-comments-before-package-and-import" />
-    </test-code>
-
-    <code-fragment id="ignore-comments-behind-statements"><![CDATA[
+	</code-fragment>
+	<test-code>
+		<description>Non-javadoc comments before package and import
+		</description>
+		<expected-problems>0</expected-problems>
+		<code-ref id="non-javadoc-comments-before-package-and-import" />
+	</test-code>
+
+	<code-fragment id="ignore-comments-behind-statements"><![CDATA[
 public class CommentsMustBeJavadocFormat {
     private String name; //avoid two two violations in one line.
     private Integer age;
@@ -120,71 +120,12 @@ public class CommentsMustBeJavadocFormat {
     }
 }
     ]]>
-    </code-fragment>
-    <test-code>
-        <description>Ignore comments behind statements.
-        </description>
-        <expected-problems>0</expected-problems>
-        <code-ref id="ignore-comments-behind-statements" />
-    </test-code>
-
-    <code-fragment id="when-node-has-annotation-wrong-format"><![CDATA[
-// test when class has annotation
-@Controller
-@Rest
-public class CommentsMustBeJavadocFormat {
-    // test when node has annotation
-    @Test
-    private String name;
-
-    // test when node has annotation2
-    @Hello(asdf="asdf")
-    @world
-    private Integer age;
-
-    // test when method has annotation
-    @Test
-    @Autowired
-    public void getName() {
-    }
-}
-    ]]>
-    </code-fragment>
-    <test-code>
-        <description>When node has annotation and wrong comment format
-        </description>
-        <expected-problems>4</expected-problems>
-        <expected-linenumbers>1,5,9,14</expected-linenumbers>
-        <code-ref id="when-node-has-annotation-wrong-format" />
-    </test-code>
-
-    <code-fragment id="when-node-has-annotation-right-format"><![CDATA[
-/** test when class has annotation */
-@Controller
-@Rest
-public class CommentsMustBeJavadocFormat {
-    /** test when node has annotation */
-    @Test
-    private String name;
-
-    /** test when node has annotation2 */
-    @Hello(asdf="asdf")
-    @world
-    private Integer age;
-
-    /** test when method has annotation */
-    @Test
-    @Autowired
-    public void getName() {
-    }
-}
-    ]]>
-    </code-fragment>
-    <test-code>
-        <description>When node has annotation and right comment format
-        </description>
-        <expected-problems>0</expected-problems>
-        <code-ref id="when-node-has-annotation-right-format" />
-    </test-code>
+	</code-fragment>
+	<test-code>
+		<description>Ignore comments behind statements.
+		</description>
+		<expected-problems>0</expected-problems>
+		<code-ref id="ignore-comments-behind-statements" />
+	</test-code>
 
 </test-data>
diff --git a/p3c-pmd/src/test/resources/com/alibaba/p3c/pmd/lang/java/rule/comment/xml/EnumConstantsMustHaveCommentRule.xml b/p3c-pmd/src/test/resources/com/alibaba/p3c/pmd/lang/java/rule/comment/xml/EnumConstantsMustHaveCommentRule.xml
index c8d51c7..a3a3511 100644
--- a/p3c-pmd/src/test/resources/com/alibaba/p3c/pmd/lang/java/rule/comment/xml/EnumConstantsMustHaveCommentRule.xml
+++ b/p3c-pmd/src/test/resources/com/alibaba/p3c/pmd/lang/java/rule/comment/xml/EnumConstantsMustHaveCommentRule.xml
@@ -11,7 +11,7 @@ public enum Level {
 	<test-code>
 		<description>Enum without Comment.</description>
 		<expected-problems>1</expected-problems>
-		<expected-linenumbers>2</expected-linenumbers>
+		<expected-linenumbers>1</expected-linenumbers>
 		<code-ref id="enum-without-comment" />
 	</test-code>
 
@@ -31,4 +31,4 @@ public enum Level {
 		<code-ref id="enum-with-comment" />
 	</test-code>
 
-</test-data>
\ No newline at end of file
+</test-data>
diff --git a/p3c-pmd/src/test/resources/com/alibaba/p3c/pmd/lang/java/rule/flowcontrol/xml/AvoidNegationOperatorRule.xml b/p3c-pmd/src/test/resources/com/alibaba/p3c/pmd/lang/java/rule/flowcontrol/xml/AvoidNegationOperatorRule.xml
new file mode 100644
index 0000000..bd23fe4
--- /dev/null
+++ b/p3c-pmd/src/test/resources/com/alibaba/p3c/pmd/lang/java/rule/flowcontrol/xml/AvoidNegationOperatorRule.xml
@@ -0,0 +1,33 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<test-data>
+    <code-fragment id="unnecessary-not-expression">
+        <![CDATA[
+    public class Example {
+        public int foo(int a, int b) {
+            if (!(a > b)) {
+                return -1;
+            }
+            if (!(a == b)) {
+                return -1;
+            }
+            if (!(a != b)) {
+                return -1;
+            }
+            if (!(a > 0 && b > 0)) {
+                return 1;
+            }
+            if (!(a == 0 && b >= 0)) {
+                return 1;
+            }
+            return 0;
+        }
+    }
+        ]]>
+    </code-fragment>
+    <test-code>
+        <description>unnecessary not operator can be removed</description>
+        <expected-problems>3</expected-problems>
+        <expected-linenumbers>3,6,9</expected-linenumbers>
+        <code-ref id="unnecessary-not-expression"/>
+    </test-code>
+</test-data>
\ No newline at end of file
diff --git a/p3c-pmd/src/test/resources/com/alibaba/p3c/pmd/lang/java/rule/naming/xml/LowerCamelCaseVariableNamingRule.xml b/p3c-pmd/src/test/resources/com/alibaba/p3c/pmd/lang/java/rule/naming/xml/LowerCamelCaseVariableNamingRule.xml
index 80b711a..a010529 100644
--- a/p3c-pmd/src/test/resources/com/alibaba/p3c/pmd/lang/java/rule/naming/xml/LowerCamelCaseVariableNamingRule.xml
+++ b/p3c-pmd/src/test/resources/com/alibaba/p3c/pmd/lang/java/rule/naming/xml/LowerCamelCaseVariableNamingRule.xml
@@ -124,6 +124,22 @@ public interface BizConstants {
         <expected-problems>0</expected-problems>
         <code-ref id="LowerCamelCaseVariableNamingRuleTest7" />
     </test-code>
+
+    <code-fragment id="LowerCamelCaseVariableNamingRuleTest8">
+        <![CDATA[
+        public @interface TYPE {
+            int DO_NO_THING = 0;
+            int DO_ONE_START_TO_END_ROUTE = 1;
+            int DO_ONE_CAR_TO_START_ROUTE = 2;
+            int DO_TWO_ROUTE = 3;
+        }
+    ]]>
+    </code-fragment>
+    <test-code>
+        <description>Variable name should be lowerCamelCase8</description>
+        <expected-problems>0</expected-problems>
+        <code-ref id="LowerCamelCaseVariableNamingRuleTest8" />
+    </test-code>
 </test-data>
 
 
diff --git a/p3c-pmd/src/test/resources/com/alibaba/p3c/pmd/lang/java/rule/naming/xml/PackageNamingRule.xml b/p3c-pmd/src/test/resources/com/alibaba/p3c/pmd/lang/java/rule/naming/xml/PackageNamingRule.xml
index e15caeb..02ee353 100644
--- a/p3c-pmd/src/test/resources/com/alibaba/p3c/pmd/lang/java/rule/naming/xml/PackageNamingRule.xml
+++ b/p3c-pmd/src/test/resources/com/alibaba/p3c/pmd/lang/java/rule/naming/xml/PackageNamingRule.xml
@@ -31,19 +31,5 @@
     </test-code>
 
 
-    <code-fragment id="PackageNamingRule2">
-        <![CDATA[
-        package ali88.ps.service;
-        public class SomeClass {
-        }
-    ]]>
-    </code-fragment>
-    <test-code>
-        <description>Package Name should be lowercase</description>
-        <expected-problems>0</expected-problems>
-        <code-ref id="PackageNamingRule2" />
-    </test-code>
-
-
 
 </test-data>
diff --git a/p3c-pmd/src/test/resources/com/alibaba/p3c/pmd/lang/java/rule/oop/xml/PojoMustOverrideToStringRule.xml b/p3c-pmd/src/test/resources/com/alibaba/p3c/pmd/lang/java/rule/oop/xml/PojoMustOverrideToStringRule.xml
index 7bc0827..2d0a017 100644
--- a/p3c-pmd/src/test/resources/com/alibaba/p3c/pmd/lang/java/rule/oop/xml/PojoMustOverrideToStringRule.xml
+++ b/p3c-pmd/src/test/resources/com/alibaba/p3c/pmd/lang/java/rule/oop/xml/PojoMustOverrideToStringRule.xml
@@ -133,18 +133,18 @@
 		<code-ref id="lombok-pojo-4" />
 	</test-code>
 
-	<!-- ====================================================================== -->
+    <!-- ====================================================================== -->
 
-	<code-fragment id="interface-with-pojo-surfix">
-		<![CDATA[
+    <code-fragment id="interface-with-pojo-surfix">
+        <![CDATA[
 	public interface FooDO {
 	}
 		]]>
-	</code-fragment>
-	<test-code>
-		<description>interface with POJO surfix</description>
-		<expected-problems>0</expected-problems>
-		<code-ref id="interface-with-pojo-surfix" />
-	</test-code>
-
-</test-data>
\ No newline at end of file
+    </code-fragment>
+    <test-code>
+        <description>interface with POJO surfix</description>
+        <expected-problems>0</expected-problems>
+        <code-ref id="interface-with-pojo-surfix" />
+    </test-code>
+
+</test-data>
diff --git a/p3c-pmd/src/test/resources/com/alibaba/p3c/pmd/lang/java/rule/other/java/UseRightCaseForDateFormatRuleExam.java b/p3c-pmd/src/test/resources/com/alibaba/p3c/pmd/lang/java/rule/other/java/UseRightCaseForDateFormatRuleExam.java
new file mode 100644
index 0000000..f11d0ff
--- /dev/null
+++ b/p3c-pmd/src/test/resources/com/alibaba/p3c/pmd/lang/java/rule/other/java/UseRightCaseForDateFormatRuleExam.java
@@ -0,0 +1,61 @@
+package com.alibaba.p3c.pmd.lang.java.rule.other.java;
+
+import java.text.SimpleDateFormat;
+
+
+/**
+ * @author huawen.phw
+ * @date 2018/2/1
+ * Description:
+ */
+public class UseRightCaseForDateFormatRuleExam {
+
+    private static final String PATTERN= "yyyyMMdd";
+
+    public void exam1() {
+        SimpleDateFormat format = new SimpleDateFormat("YYYYMMDD"); //vio
+
+        format = new SimpleDateFormat("yyyy/MM/dd");
+
+        format = new SimpleDateFormat("yyyy-MM-dd");
+
+        format = new SimpleDateFormat("yyyymmdd");
+
+        format = new SimpleDateFormat("yyyy-MM-DD");
+
+        format = new SimpleDateFormat("YYYY/MM/dd HH:mm:ss"); //p2 error
+
+        format = new SimpleDateFormat("yyyy/MM/dd HH:mm:ss"); //right
+
+        format = new SimpleDateFormat("yy-MM-DD");
+
+        format = new SimpleDateFormat("YY-MM-DD");//vio
+
+        format = new SimpleDateFormat("YY-md");//vio
+
+        format = new SimpleDateFormat("Yy-md"); //vio
+
+        format = new SimpleDateFormat("yyy-md"); //not checked
+
+        format = new SimpleDateFormat("Y-md"); // not checked
+
+        format = new SimpleDateFormat("y-md"); // not checked
+
+        format = new SimpleDateFormat("dd/MM-YYYY"); //not checked
+
+        exam_2(PATTERN);//can not checked
+
+        exam_2("YYYmmDD");//can not checked
+    }
+
+    public void exam2(String formatStr) {
+        SimpleDateFormat format = new SimpleDateFormat(PATTERN);//can not checked
+
+        format = new SimpleDateFormat(formatStr);//can not checked
+    }
+
+    public  void exam3(){
+    }
+
+
+}
\ No newline at end of file
diff --git a/p3c-pmd/src/test/resources/com/alibaba/p3c/pmd/lang/java/rule/other/xml/MethodTooLongRule.xml b/p3c-pmd/src/test/resources/com/alibaba/p3c/pmd/lang/java/rule/other/xml/MethodTooLongRule.xml
new file mode 100644
index 0000000..0cab1b7
--- /dev/null
+++ b/p3c-pmd/src/test/resources/com/alibaba/p3c/pmd/lang/java/rule/other/xml/MethodTooLongRule.xml
@@ -0,0 +1,407 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<test-data>
+
+    <code-fragment id="method-equal-to-80-lines"><![CDATA[
+public class MethodTooLongRule {
+    @Test
+    public void test() {
+        // 77 lines of comment
+        // 77 lines of comment
+        // 77 lines of comment
+        // 77 lines of comment
+        // 77 lines of comment
+        // 77 lines of comment
+        // 77 lines of comment
+        // 77 lines of comment
+        // 77 lines of comment
+        // 77 lines of comment
+        // 77 lines of comment
+        // 77 lines of comment
+        // 77 lines of comment
+        // 77 lines of comment
+        // 77 lines of comment
+        // 77 lines of comment
+        // 77 lines of comment
+        // 77 lines of comment
+        // 77 lines of comment
+        // 77 lines of comment
+        // 77 lines of comment
+        // 77 lines of comment
+        // 77 lines of comment
+        // 77 lines of comment
+        // 77 lines of comment
+        // 77 lines of comment
+        // 77 lines of comment
+        // 77 lines of comment
+        // 77 lines of comment
+        // 77 lines of comment
+        // 77 lines of comment
+        // 77 lines of comment
+        // 77 lines of comment
+        // 77 lines of comment
+        // 77 lines of comment
+        // 77 lines of comment
+        // 77 lines of comment
+        // 77 lines of comment
+        // 77 lines of comment
+        // 77 lines of comment
+        // 77 lines of comment
+        // 77 lines of comment
+        // 77 lines of comment
+        // 77 lines of comment
+        // 77 lines of comment
+        // 77 lines of comment
+        // 77 lines of comment
+        // 77 lines of comment
+        // 77 lines of comment
+        // 77 lines of comment
+        // 77 lines of comment
+        // 77 lines of comment
+        // 77 lines of comment
+        // 77 lines of comment
+        // 77 lines of comment
+        // 77 lines of comment
+        // 77 lines of comment
+        // 77 lines of comment
+        // 77 lines of comment
+        // 77 lines of comment
+        // 77 lines of comment
+        // 77 lines of comment
+        // 77 lines of comment
+        // 77 lines of comment
+        // 77 lines of comment
+        // 77 lines of comment
+        // 77 lines of comment
+        // 77 lines of comment
+        // 77 lines of comment
+        // 77 lines of comment
+        // 77 lines of comment
+        // 77 lines of comment
+        // 77 lines of comment
+        // 77 lines of comment
+        // 77 lines of comment
+        // 77 lines of comment
+        // 77 lines of comment
+        int i = 1;
+    }
+}
+    ]]>
+    </code-fragment>
+
+    <test-code>
+        <description>Method equal to 80 lines</description>
+        <expected-problems>0</expected-problems>
+        <code-ref id="method-equal-to-80-lines" />
+    </test-code>
+
+
+    <code-fragment id="method-more-than-80-lines"><![CDATA[
+public class MethodTooLongRule {
+    public void test() {
+        // 78 lines of comment
+        // 78 lines of comment
+        // 78 lines of comment
+        // 78 lines of comment
+        // 78 lines of comment
+        // 78 lines of comment
+        // 78 lines of comment
+        // 78 lines of comment
+        // 78 lines of comment
+        // 78 lines of comment
+        // 78 lines of comment
+        // 78 lines of comment
+        // 78 lines of comment
+        // 78 lines of comment
+        // 78 lines of comment
+        // 78 lines of comment
+        // 78 lines of comment
+        // 78 lines of comment
+        // 78 lines of comment
+        // 78 lines of comment
+        // 78 lines of comment
+        // 78 lines of comment
+        // 78 lines of comment
+        // 78 lines of comment
+        // 78 lines of comment
+        // 78 lines of comment
+        // 78 lines of comment
+        // 78 lines of comment
+        // 78 lines of comment
+        // 78 lines of comment
+        // 78 lines of comment
+        // 78 lines of comment
+        // 78 lines of comment
+        // 78 lines of comment
+        // 78 lines of comment
+        // 78 lines of comment
+        // 78 lines of comment
+        // 78 lines of comment
+        // 78 lines of comment
+        // 78 lines of comment
+        // 78 lines of comment
+        // 78 lines of comment
+        // 78 lines of comment
+        // 78 lines of comment
+        // 78 lines of comment
+        // 78 lines of comment
+        // 78 lines of comment
+        // 78 lines of comment
+        // 78 lines of comment
+        // 78 lines of comment
+        // 78 lines of comment
+        // 78 lines of comment
+        // 78 lines of comment
+        // 78 lines of comment
+        // 78 lines of comment
+        // 78 lines of comment
+        // 78 lines of comment
+        // 78 lines of comment
+        // 78 lines of comment
+        // 78 lines of comment
+        // 78 lines of comment
+        // 78 lines of comment
+        // 78 lines of comment
+        // 78 lines of comment
+        // 78 lines of comment
+        // 78 lines of comment
+        // 78 lines of comment
+        // 78 lines of comment
+        // 78 lines of comment
+        // 78 lines of comment
+        // 78 lines of comment
+        // 78 lines of comment
+        // 78 lines of comment
+        // 78 lines of comment
+        // 78 lines of comment
+        // 78 lines of comment
+        // 78 lines of comment
+        // 78 lines of comment
+        int i = 1;
+    }
+}
+    ]]>
+    </code-fragment>
+
+    <test-code>
+        <description>Method more than 80 lines</description>
+        <expected-problems>1</expected-problems>
+        <expected-linenumbers>2</expected-linenumbers>
+        <code-ref id="method-more-than-80-lines" />
+    </test-code>
+
+
+    <code-fragment id="method-less-than-80-lines"><![CDATA[
+public class MethodTooLongRule {
+    public void test() {
+        int i = 1;
+    }
+}
+    ]]>
+    </code-fragment>
+    <test-code>
+        <description>Method less than 80 lines</description>
+        <expected-problems>0</expected-problems>
+        <code-ref id="method-less-than-80-lines" />
+    </test-code>
+
+    <code-fragment id="interface-method"><![CDATA[
+interface printable{
+    void print();
+}
+    ]]>
+    </code-fragment>
+    <test-code>
+        <description>Interface method</description>
+        <expected-problems>0</expected-problems>
+        <code-ref id="interface-method" />
+    </test-code>
+
+
+    <code-fragment id="method-signature-multi-lines"><![CDATA[
+public class MethodTooLongRule {
+    public
+    void
+    test() {
+        // 76 lines of comment
+        // 76 lines of comment
+        // 76 lines of comment
+        // 76 lines of comment
+        // 76 lines of comment
+        // 76 lines of comment
+        // 76 lines of comment
+        // 76 lines of comment
+        // 76 lines of comment
+        // 76 lines of comment
+        // 76 lines of comment
+        // 76 lines of comment
+        // 76 lines of comment
+        // 76 lines of comment
+        // 76 lines of comment
+        // 76 lines of comment
+        // 76 lines of comment
+        // 76 lines of comment
+        // 76 lines of comment
+        // 76 lines of comment
+        // 76 lines of comment
+        // 76 lines of comment
+        // 76 lines of comment
+        // 76 lines of comment
+        // 76 lines of comment
+        // 76 lines of comment
+        // 76 lines of comment
+        // 76 lines of comment
+        // 76 lines of comment
+        // 76 lines of comment
+        // 76 lines of comment
+        // 76 lines of comment
+        // 76 lines of comment
+        // 76 lines of comment
+        // 76 lines of comment
+        // 76 lines of comment
+        // 76 lines of comment
+        // 76 lines of comment
+        // 76 lines of comment
+        // 76 lines of comment
+        // 76 lines of comment
+        // 76 lines of comment
+        // 76 lines of comment
+        // 76 lines of comment
+        // 76 lines of comment
+        // 76 lines of comment
+        // 76 lines of comment
+        // 76 lines of comment
+        // 76 lines of comment
+        // 76 lines of comment
+        // 76 lines of comment
+        // 76 lines of comment
+        // 76 lines of comment
+        // 76 lines of comment
+        // 76 lines of comment
+        // 76 lines of comment
+        // 76 lines of comment
+        // 76 lines of comment
+        // 76 lines of comment
+        // 76 lines of comment
+        // 76 lines of comment
+        // 76 lines of comment
+        // 76 lines of comment
+        // 76 lines of comment
+        // 76 lines of comment
+        // 76 lines of comment
+        // 76 lines of comment
+        // 76 lines of comment
+        // 76 lines of comment
+        // 76 lines of comment
+        // 76 lines of comment
+        // 76 lines of comment
+        // 76 lines of comment
+        // 76 lines of comment
+        // 76 lines of comment
+        // 76 lines of comment
+        int i = 1;
+    }
+}
+    ]]>
+    </code-fragment>
+    <test-code>
+        <description>Method signature multi lines</description>
+        <expected-problems>1</expected-problems>
+        <expected-linenumbers>4</expected-linenumbers>
+        <code-ref id="method-signature-multi-lines" />
+    </test-code>
+
+
+    <code-fragment id="method-signature-with-annotation-multi-lines"><![CDATA[
+public class MethodTooLongRule {
+    @Test public
+    void
+    test() {
+        // 76 lines of comment
+        // 76 lines of comment
+        // 76 lines of comment
+        // 76 lines of comment
+        // 76 lines of comment
+        // 76 lines of comment
+        // 76 lines of comment
+        // 76 lines of comment
+        // 76 lines of comment
+        // 76 lines of comment
+        // 76 lines of comment
+        // 76 lines of comment
+        // 76 lines of comment
+        // 76 lines of comment
+        // 76 lines of comment
+        // 76 lines of comment
+        // 76 lines of comment
+        // 76 lines of comment
+        // 76 lines of comment
+        // 76 lines of comment
+        // 76 lines of comment
+        // 76 lines of comment
+        // 76 lines of comment
+        // 76 lines of comment
+        // 76 lines of comment
+        // 76 lines of comment
+        // 76 lines of comment
+        // 76 lines of comment
+        // 76 lines of comment
+        // 76 lines of comment
+        // 76 lines of comment
+        // 76 lines of comment
+        // 76 lines of comment
+        // 76 lines of comment
+        // 76 lines of comment
+        // 76 lines of comment
+        // 76 lines of comment
+        // 76 lines of comment
+        // 76 lines of comment
+        // 76 lines of comment
+        // 76 lines of comment
+        // 76 lines of comment
+        // 76 lines of comment
+        // 76 lines of comment
+        // 76 lines of comment
+        // 76 lines of comment
+        // 76 lines of comment
+        // 76 lines of comment
+        // 76 lines of comment
+        // 76 lines of comment
+        // 76 lines of comment
+        // 76 lines of comment
+        // 76 lines of comment
+        // 76 lines of comment
+        // 76 lines of comment
+        // 76 lines of comment
+        // 76 lines of comment
+        // 76 lines of comment
+        // 76 lines of comment
+        // 76 lines of comment
+        // 76 lines of comment
+        // 76 lines of comment
+        // 76 lines of comment
+        // 76 lines of comment
+        // 76 lines of comment
+        // 76 lines of comment
+        // 76 lines of comment
+        // 76 lines of comment
+        // 76 lines of comment
+        // 76 lines of comment
+        // 76 lines of comment
+        // 76 lines of comment
+        // 76 lines of comment
+        // 76 lines of comment
+        // 76 lines of comment
+        // 76 lines of comment
+        int i = 1;
+    }
+}
+    ]]>
+    </code-fragment>
+    <test-code>
+        <description>Method signature with annotation multi lines</description>
+        <expected-problems>1</expected-problems>
+        <expected-linenumbers>4</expected-linenumbers>
+        <code-ref id="method-signature-with-annotation-multi-lines" />
+    </test-code>
+
+</test-data>
\ No newline at end of file
diff --git a/p3c-pmd/src/test/resources/com/alibaba/p3c/pmd/lang/java/rule/other/xml/UseRightCaseForDateFormatRule.xml b/p3c-pmd/src/test/resources/com/alibaba/p3c/pmd/lang/java/rule/other/xml/UseRightCaseForDateFormatRule.xml
new file mode 100644
index 0000000..9d157d0
--- /dev/null
+++ b/p3c-pmd/src/test/resources/com/alibaba/p3c/pmd/lang/java/rule/other/xml/UseRightCaseForDateFormatRule.xml
@@ -0,0 +1,31 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<test-data>
+
+	<code-fragment id="use-right-case-for-date-format"><![CDATA[
+		import java.text.SimpleDateFormat;
+		class DateFormatTest {
+        public void test(){
+            SimpleDateFormat format = new SimpleDateFormat("YYYYMMDD"); //vio
+            format = new SimpleDateFormat("yyyy/MM/dd");
+            format = new SimpleDateFormat("yyyy-MM-dd");
+            format = new SimpleDateFormat("yyyymmdd");
+            format = new SimpleDateFormat("yyyy-MM-DD");
+            format = new SimpleDateFormat("yy-MM-DD");
+            format = new SimpleDateFormat("YY-MM-DD");
+            format = new SimpleDateFormat("YYmd");
+            format = new SimpleDateFormat("YYYY-M-d");
+            format = new SimpleDateFormat("YYYY-dd");
+
+        }
+    }
+    ]]>
+	</code-fragment>
+
+	<test-code>
+		<description>Use right case to format date</description>
+		<expected-problems>5</expected-problems>
+		<expected-linenumbers>4,10,11,12,13</expected-linenumbers>
+		<code-ref id="use-right-case-for-date-format" />
+	</test-code>
+
+</test-data>
\ No newline at end of file