fixes #116

spring-cloud-alibaba-sentinel-datasource/src/main/java/org/springframework/cloud/alibaba/sentinel/datasource/factorybean/ApolloDataSourceFactoryBean.java

@@ -57,7 +57,7 @@ public class ApolloDataSourceFactoryBean implements FactoryBean<ApolloDataSource
         return converter;
     }
 
-    public void setConverter(Converter Converter) {
-        this.converter = Converter;
+    public void setConverter(Converter converter) {
+        this.converter = converter;
     }
 }

spring-cloud-alibaba-sentinel-datasource/src/main/java/org/springframework/cloud/alibaba/sentinel/datasource/factorybean/FileRefreshableDataSourceFactoryBean.java

@@ -70,7 +70,7 @@ public class FileRefreshableDataSourceFactoryBean
         return converter;
     }
 
-    public void setConverter(Converter Converter) {
-        this.converter = Converter;
+    public void setConverter(Converter converter) {
+        this.converter = converter;
     }
 }

spring-cloud-alibaba-sentinel-datasource/src/main/java/org/springframework/cloud/alibaba/sentinel/datasource/factorybean/NacosDataSourceFactoryBean.java

@@ -56,7 +56,7 @@ public class NacosDataSourceFactoryBean implements FactoryBean<NacosDataSource>
         return converter;
     }
 
-    public void setConverter(Converter Converter) {
-        this.converter = Converter;
+    public void setConverter(Converter converter) {
+        this.converter = converter;
     }
 }

spring-cloud-alibaba-sentinel-datasource/src/main/java/org/springframework/cloud/alibaba/sentinel/datasource/factorybean/ZookeeperDataSourceFactoryBean.java

@@ -75,7 +75,7 @@ public class ZookeeperDataSourceFactoryBean implements FactoryBean<ZookeeperData
         return converter;
     }
 
-    public void setConverter(Converter Converter) {
-        this.converter = Converter;
+    public void setConverter(Converter converter) {
+        this.converter = converter;
     }
 }