copy package-info with package annotations (IDEA-79980)

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

@@ -111,7 +111,8 @@ public abstract class PsiJavaFileBaseImpl extends PsiFileImpl implements PsiJava
     final PsiElementFactory factory = JavaPsiFacade.getInstance(getProject()).getElementFactory();
     if (packageStatement != null) {
       if (packageName.length() > 0) {
-        packageStatement.replace(factory.createPackageStatement(packageName));
+        final PsiJavaCodeReferenceElement reference = packageStatement.getPackageReference();
+        reference.replace(factory.createReferenceFromText(packageName, packageStatement));
       }
       else {
         packageStatement.delete();

java/java-tests/testData/refactoring/copy/multifile/packageInfo/from/package-info.java

@@ -0,0 +1,3 @@
+@javax.xml.bind.annotation.XmlSchema(elementFormDefault = javax.xml.bind.annotation.XmlNsForm.QUALIFIED,
+        namespace = "http://www.mynamespaceurl.com/myHits")
+package from;

java/java-tests/testData/refactoring/copy/multifile/packageInfo/to/package-info.expected.java

@@ -0,0 +1,3 @@
+@javax.xml.bind.annotation.XmlSchema(elementFormDefault = javax.xml.bind.annotation.XmlNsForm.QUALIFIED,
+        namespace = "http://www.mynamespaceurl.com/myHits")
+package to;

java/java-tests/testSrc/com/intellij/refactoring/CopyTest.java

@@ -93,4 +93,30 @@ public class CopyTest extends CodeInsightTestCase {
     assertNotNull(root.findFileByRelativePath("to/1.txt"));
     assertNotNull(root.findFileByRelativePath("to/2.txt"));
   }
+
+  public void testPackageInfo() throws Exception {
+    String rootBefore = getRoot();
+    PsiTestUtil.removeAllRoots(myModule, JavaSdkImpl.getMockJdk17());
+    final VirtualFile root = PsiTestUtil.createTestProjectStructure(myProject, myModule, rootBefore, myFilesToDelete);
+
+    final VirtualFile first = root.findFileByRelativePath("from/package-info.java");
+    assertNotNull(first);
+    
+    final PsiFile firstPsi = myPsiManager.findFile(first);
+    
+    assertTrue(CopyHandler.canCopy(new PsiElement[]{firstPsi}));
+
+    final VirtualFile toDir = root.findChild("to");
+    assertNotNull(toDir);
+    final PsiDirectory targetDirectory = myPsiManager.findDirectory(toDir);
+
+    CopyHandler.doCopy(new PsiElement[]{firstPsi}, targetDirectory);
+
+    final VirtualFile dest = root.findFileByRelativePath("to/package-info.java");
+    assertNotNull(dest);
+
+    VirtualFile fileExpected = root.findFileByRelativePath("to/package-info.expected.java");
+    
+    PlatformTestUtil.assertFilesEqual(fileExpected, dest);
+  }
 }