[java] renaming modules

java/java-psi-impl/src/com/intellij/psi/impl/source/PsiJavaModuleReference.java

@@ -26,6 +26,7 @@ import com.intellij.psi.impl.file.impl.JavaFileManager;
 import com.intellij.psi.impl.source.resolve.ResolveCache;
 import com.intellij.psi.search.GlobalSearchScope;
 import com.intellij.util.ArrayUtil;
+import com.intellij.util.IncorrectOperationException;
 import org.jetbrains.annotations.NotNull;
 
 import java.util.Collection;
@@ -53,6 +54,14 @@ public class PsiJavaModuleReference extends PsiReferenceBase.Poly<PsiJavaModuleR
     return ResolveCache.getInstance(getProject()).resolveWithCaching(this, Resolver.INSTANCE, false, incompleteCode);
   }
 
+  @Override
+  public PsiElement handleElementRename(@NotNull String newName) throws IncorrectOperationException {
+    PsiJavaModuleReferenceElement element = getElement();
+    PsiElementFactory factory = PsiElementFactory.SERVICE.getInstance(element.getProject());
+    PsiJavaModuleReferenceElement newElement = factory.createModuleFromText("module " + newName + " {}").getNameElement();
+    return element.replace(newElement);
+  }
+
   private Project getProject() {
     return getElement().getProject();
   }

java/java-tests/testSrc/com/intellij/codeInsight/daemon/ModuleRenameTest.kt

@@ -0,0 +1,58 @@
+/*
+ * Copyright 2000-2016 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 com.intellij.codeInsight.daemon
+
+import com.intellij.openapi.application.runWriteAction
+import com.intellij.openapi.components.ServiceManager
+import com.intellij.psi.PsiDocumentManager
+import com.intellij.psi.impl.file.impl.JavaFileManager
+import com.intellij.psi.search.GlobalSearchScope
+import com.intellij.refactoring.rename.RenameProcessor
+import com.intellij.testFramework.LightProjectDescriptor
+import com.intellij.testFramework.VfsTestUtil
+import com.intellij.testFramework.fixtures.LightCodeInsightFixtureTestCase
+import com.intellij.testFramework.fixtures.MultiModuleJava9ProjectDescriptor
+import com.intellij.testFramework.fixtures.MultiModuleJava9ProjectDescriptor.ModuleDescriptor
+import com.intellij.testFramework.fixtures.MultiModuleJava9ProjectDescriptor.ModuleDescriptor.M2
+import com.intellij.testFramework.fixtures.MultiModuleJava9ProjectDescriptor.ModuleDescriptor.MAIN
+import org.junit.Test
+
+class ModuleRenameTest  : LightCodeInsightFixtureTestCase() {
+  override fun getProjectDescriptor(): LightProjectDescriptor = MultiModuleJava9ProjectDescriptor
+
+  override fun setUp() {
+    super.setUp()
+    addFile("module-info.java", "module M2 { }", M2)
+  }
+
+  override fun tearDown() {
+    MultiModuleJava9ProjectDescriptor.cleanupSourceRoots()
+    super.tearDown()
+  }
+
+  @Test fun testRename() {
+    myFixture.configureByText("module-info.java", "module M { requires M2; }")
+    val service = ServiceManager.getService(project, JavaFileManager::class.java)
+    val module = service.findModules("M2", GlobalSearchScope.allScope(project)).first()
+    runWriteAction {
+      RenameProcessor(project, module, "M2.bis", false, false).run()
+      PsiDocumentManager.getInstance(project).commitAllDocuments()
+    }
+    myFixture.checkResult("module M { requires M2.bis; }")
+  }
+
+  private fun addFile(path: String, text: String, module: ModuleDescriptor = MAIN) = VfsTestUtil.createFile(module.root(), path, text)
+}