do not highlight method unused if referenced via overridden

java/java-tests/testData/codeInsight/daemonCodeAnalyzer/advHighlighting/UnusedPublicMethodReferencedViaSubclass.java

@@ -0,0 +1,25 @@
+/*
+ * Copyright 2000-2014 JetBrains s.r.o.
+ *
+ * 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 x;
+
+interface I {
+    void <warning descr="Method 'ffffff()' is never used">ffffff</warning>();
+}
+
+class <warning descr="Class 'XI' is never used">XI</warning> implements I {
+    public void ffffff() {
+    }
+}

java/java-tests/testData/codeInsight/daemonCodeAnalyzer/advHighlighting/unusedPublicMethodRefViaSubclass/x/I.java

@@ -0,0 +1,27 @@
+/*
+ * Copyright 2000-2014 JetBrains s.r.o.
+ *
+ * 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 x;
+
+public interface I {
+    void ffffff();
+}
+
+class XI implements I {
+    public void ffffff() {
+    }
+  public void <warning descr="Method 'ffffff2()' is never used">ffffff2</warning>() {
+  }
+}

java/java-tests/testData/codeInsight/daemonCodeAnalyzer/advHighlighting/unusedPublicMethodRefViaSubclass/x/X.java

@@ -0,0 +1,22 @@
+/*
+ * Copyright 2000-2014 JetBrains s.r.o.
+ *
+ * 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 x;
+
+public class X {
+    void g(XI xi) {
+        xi.ffffff();
+    }
+}

java/java-tests/testSrc/com/intellij/codeInsight/daemon/AdvHighlightingTest.java

@@ -18,6 +18,9 @@ package com.intellij.codeInsight.daemon;
 import com.intellij.analysis.PackagesScopesProvider;
 import com.intellij.application.options.colors.ScopeAttributesUtil;
 import com.intellij.codeInsight.daemon.impl.HighlightInfo;
+import com.intellij.codeInspection.LocalInspectionTool;
+import com.intellij.codeInspection.deadCode.UnusedDeclarationInspection;
+import com.intellij.codeInspection.unusedSymbol.UnusedSymbolLocalInspection;
 import com.intellij.openapi.application.ex.PathManagerEx;
 import com.intellij.openapi.editor.colors.EditorColorsManager;
 import com.intellij.openapi.editor.colors.EditorColorsScheme;
@@ -324,4 +327,19 @@ public class AdvHighlightingTest extends DaemonAnalyzerTestCase {
   public void testPublicClassInRightFile2() throws Exception {
     doTest(BASE_PATH + "/publicClassInRightFile/x/Y.java", BASE_PATH + "/publicClassInRightFile", false, false);
   }
+
+  @Override
+  protected LocalInspectionTool[] configureLocalInspectionTools() {
+    boolean needUnusedSymbol = getTestName(true).toLowerCase().contains("unused");
+    return needUnusedSymbol ? new LocalInspectionTool[]{new UnusedSymbolLocalInspection()} : new LocalInspectionTool[0];
+  }
+
+  public void testUnusedPublicMethodReferencedViaSubclass() throws Exception {
+    UnusedDeclarationInspection deadCodeInspection = new UnusedDeclarationInspection();
+    enableInspectionTool(deadCodeInspection);
+    //String ref = getTestDataPath() + BASE_PATH + "/unusedPublicMethodRefViaSubclass/x/X.java";
+    allowTreeAccessForAllFiles();
+
+    doTest(BASE_PATH + "/unusedPublicMethodRefViaSubclass/x/I.java", BASE_PATH + "/unusedPublicMethodRefViaSubclass", true, false);
+  }
 }