replaced getParameterTypes().length with getParameterCount()

src/main/java/com/zaxxer/hikari/util/PropertyElf.java

@@ -81,7 +81,7 @@ public final class PropertyElf
       Matcher matcher = GETTER_PATTERN.matcher("");
       for (Method method : targetClass.getMethods()) {
          String name = method.getName();
-         if (method.getParameterTypes().length == 0 && matcher.reset(name).matches()) {
+         if (method.getParameterCount() == 0 && matcher.reset(name).matches()) {
             name = name.replaceFirst("(get|is)", "");
             try {
                if (targetClass.getMethod("set" + name, method.getReturnType()) != null) {
@@ -132,7 +132,7 @@ public final class PropertyElf
       String methodName = "set" + propName.substring(0, 1).toUpperCase() + propName.substring(1);
 
       for (Method method : methods) {
-         if (method.getName().equals(methodName) && method.getParameterTypes().length == 1) {
+         if (method.getName().equals(methodName) && method.getParameterCount() == 1) {
             writeMethod = method;
             break;
          }
@@ -141,7 +141,7 @@ public final class PropertyElf
       if (writeMethod == null) {
          methodName = "set" + propName.toUpperCase();
          for (Method method : methods) {
-            if (method.getName().equals(methodName) && method.getParameterTypes().length == 1) {
+            if (method.getName().equals(methodName) && method.getParameterCount() == 1) {
                writeMethod = method;
                break;
             }

src/main/java/com/zaxxer/hikari/util/UtilityElf.java

@@ -73,18 +73,16 @@ public final class UtilityElf
 
       try {
          Class<?> loaded = UtilityElf.class.getClassLoader().loadClass(className);
+         if (args.length == 0) {
+            return clazz.cast(loaded.newInstance());
+         }
 
          Class<?>[] argClasses = new Class<?>[args.length];
          for (int i = 0; i < args.length; i++) {
             argClasses[i] = args[i].getClass();
          }
-
-         if (args.length > 0) {
-            Constructor<?> constructor = loaded.getConstructor(argClasses);
-            return clazz.cast(constructor.newInstance(args));
-         }
-
-         return clazz.cast(loaded.newInstance());
+         Constructor<?> constructor = loaded.getConstructor(argClasses);
+         return clazz.cast(constructor.newInstance(args));
       }
       catch (Exception e) {
          throw new RuntimeException(e);