#1302 False Positive: UnusedPrivateField when accessed by inner class

pmd-java/src/test/resources/net/sourceforge/pmd/lang/java/rule/unusedcode/xml/UnusedPrivateField.xml

@@ -422,6 +422,43 @@ public class InnerPrivateFieldInAnotherInner {
     static class InnerDeclaring {
         private static int INNER_FIELD;
     }
+}
+     ]]></code>
+     </test-code>
+     <test-code>
+        <description>#1302 False Positive: UnusedPrivateField when accessed by inner class</description>
+        <expected-problems>0</expected-problems>
+        <code><![CDATA[
+public class UnusedPrivateFieldClass
+{
+    private int m_number; // UnusedPrivateField incorrectly errors
+
+    public void increment()
+    {
+        m_number++; // Write
+    }
+
+    public User getUser()
+    {
+        return new User(this);
+    }
+
+    public static class User
+    {
+        private UnusedPrivateFieldClass m_bugTest;
+        private int m_number;
+
+        private User(UnusedPrivateFieldClass bugTest)
+        {
+            m_bugTest = bugTest;
+            m_number = bugTest.m_number; // Read
+        }
+
+        public boolean isValid()
+        {
+            return m_bugTest.m_number == m_number;
+        }
+    }
 }
         ]]></code>
     </test-code>