Moved the PMD plugin from http://sourceforge.net/projects/maven-plugins to the Maven CVS. I will move it to another place when we decide to have plugins hosted in a different subproject of maven.apache.org.

git-svn-id: https://svn.apache.org/repos/asf/maven/maven-1/plugins/trunk@113253 13f79535-47bb-0310-9956-ffa450edef68

pmd/rulesets/unusedcode.xml

@@ -0,0 +1,105 @@
+<?xml version="1.0"?>
+
+<ruleset name="Unused Code Rules">
+  <description>
+The Unused Code Ruleset contains a collection of rules that find unused code.
+  </description>
+
+
+  <rule name="UnusedPrivateField"
+        message="Avoid unused private fields such as ''{0}''"
+        class="net.sourceforge.pmd.rules.UnusedPrivateFieldRule">
+    <description>
+Unused Private Field detects when a private field is declared
+that is not used by the class.
+    </description>
+    <example>
+<![CDATA[
+public class Something {
+  private static int FOO = 2; // Unused
+  private int i = 5; // Unused
+  private int j = 6;
+
+  public int addOne() {
+    return j++;
+  }
+}
+]]>
+    </example>
+  </rule>
+
+<rule name="UnusedLocalVariable"
+        message="Avoid unused local variables such as ''{0}''"
+        class="net.sourceforge.pmd.rules.UnusedLocalVariableRule">
+    <description>
+Unused Local Variables detects when a variable is declared, but not
+used (except for possibly initial assignment)
+    </description>
+
+    <example>
+<![CDATA[
+public int doSomething() {
+  int i = 5; // Unused
+  int j = 6;
+  j += 3;
+  return j;
+}
+]]>
+    </example>
+  </rule>
+
+
+
+    <rule name="UnusedPrivateMethod"
+        message="Avoid unused private methods such as ''{0}''"
+        class="net.sourceforge.pmd.rules.UnusedPrivateMethodRule">
+    <description>
+Unused Private Method detects when a private method is declared but is unused.
+    </description>
+    <example>
+<![CDATA[
+public class Something {
+ private void foo() {} // unused
+}
+]]>
+    </example>
+  </rule>
+
+
+  <rule name="UnusedFormalParameter"
+        message="Avoid unused formal parameters such as ''{0}''"
+        class="net.sourceforge.pmd.rules.UnusedFormalParameterRule">
+    <description>
+Avoid passing parameters to methods and then not using those parameters.
+    </description>
+
+    <example>
+<![CDATA[
+public class Foo {
+ private void bar(String howdy) {
+  // howdy is not used
+ }
+]]>
+    </example>
+  </rule>
+
+  <rule name="UnnecessaryConstructorRule"
+        message="Avoid unnecessary constructors - the compiler will generate these for you"
+        class="net.sourceforge.pmd.rules.UnnecessaryConstructorRule">
+    <description>
+Unnecessary constructor detects when a constructor is not necessary; i.e., when there's only one constructor,
+it's public, has an empty body, and takes no arguments.
+    </description>
+    <example>
+<![CDATA[
+public class Foo {
+ public Foo() {}
+}
+]]>
+    </example>
+  </rule>
+
+</ruleset>
+
+
+