IDEA-67376 Groovy: Renaming does not rename usages of private java field/methods in groovy files

plugins/groovy/src/META-INF/plugin.xml

@@ -214,6 +214,8 @@
     <debuggerClassFilterProvider implementation="org.jetbrains.plugins.groovy.debugger.filters.GroovyDebuggerClassFilterProvider"/>
     <stackFrameFilter implementation="org.jetbrains.plugins.groovy.debugger.filters.GroovyDebuggerClassFilterProvider"/>
 
+    <useScopeEnlarger implementation="org.jetbrains.plugins.groovy.lang.psi.impl.search.GrPrivateFieldScopeEnlarger"/>
+
     <debuggerEditorTextProvider language="Groovy" implementationClass="org.jetbrains.plugins.groovy.debugger.GroovyEditorTextProvider"/>
 
     <xdebugger.settings implementation="org.jetbrains.plugins.groovy.debugger.filters.GroovyDebuggerSettings"/>

plugins/groovy/src/org/jetbrains/plugins/groovy/lang/psi/impl/search/GrPrivateFieldScopeEnlarger.java

@@ -0,0 +1,41 @@
+/*
+ * Copyright 2000-2011 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 org.jetbrains.plugins.groovy.lang.psi.impl.search;
+
+import com.intellij.psi.PsiElement;
+import com.intellij.psi.PsiField;
+import com.intellij.psi.PsiModifier;
+import com.intellij.psi.impl.PsiManagerEx;
+import com.intellij.psi.search.GlobalSearchScope;
+import com.intellij.psi.search.SearchScope;
+import com.intellij.psi.search.UseScopeEnlarger;
+import org.jetbrains.annotations.NotNull;
+
+/**
+ * @author Maxim.Medvedev
+ */
+public class GrPrivateFieldScopeEnlarger extends UseScopeEnlarger {
+  @Override
+  public SearchScope getAdditionalUseScope(@NotNull PsiElement element) {
+    if (element instanceof PsiField && ((PsiField)element).hasModifierProperty(PsiModifier.PRIVATE)) {
+      final PsiManagerEx psiManager = (PsiManagerEx)element.getManager();
+      final GlobalSearchScope maximalUseScope = psiManager.getFileManager().getUseScope(element);
+      return new GrSourceFilterScope(maximalUseScope);
+    }
+
+    return null;
+  }
+}

plugins/groovy/test/org/jetbrains/plugins/groovy/refactoring/rename/RenameTest.groovy

@@ -425,6 +425,21 @@ class Foo {
     assertTrue false
   }
 
+  public void testRenameJavaPrivateField() {
+    myFixture.addFileToProject "Foo.java", """
+public class Foo {
+  private int field;
+}"""
+    myFixture.configureByText "Bar.groovy", """
+print new Foo(field: 2)
+"""
+    myFixture.renameElement myFixture.findClass("Foo").fields[0], "anotherOneName"
+
+    myFixture.checkResult """
+print new Foo(anotherOneName: 2)
+"""
+  }
+
   private def doInplaceRenameTest() {
     String prefix = TestUtils.getTestDataPath() + "groovy/refactoring/rename/" + getTestName(false)
     myFixture.configureByFile prefix + ".groovy";