java: annotation parsing avoided for simple cases

(optimization + Kotlin compatibility)

java/java-tests/testSrc/com/intellij/psi/ClsPsiTest.java

@@ -0,0 +1,43 @@
+/*
+ * Copyright 2000-2015 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.psi;
+
+import com.intellij.openapi.application.ex.PathManagerEx;
+import com.intellij.openapi.vfs.LocalFileSystem;
+import com.intellij.openapi.vfs.VirtualFile;
+import com.intellij.psi.impl.compiled.ClsFileImpl;
+import com.intellij.testFramework.LightIdeaTestCase;
+
+public class ClsPsiTest extends LightIdeaTestCase {
+  public void testKeywordAnnotatedClass() {
+    PsiModifierList modList = getFile().getClasses()[0].getModifierList();
+    assertNotNull(modList);
+    assertEquals("@pkg.native", modList.getAnnotations()[0].getText());
+  }
+
+  private PsiJavaFile getFile() {
+    return getFile(getTestName(false));
+  }
+
+  private static PsiJavaFile getFile(String name) {
+    String path = PathManagerEx.getTestDataPath() + "/psi/cls/tree/" + name + ".class";
+    VirtualFile file = LocalFileSystem.getInstance().findFileByPath(path);
+    assertNotNull(path, file);
+    PsiFile clsFile = PsiManager.getInstance(getProject()).findFile(file);
+    assertTrue(String.valueOf(clsFile), clsFile instanceof ClsFileImpl);
+    return (PsiJavaFile)clsFile;
+  }
+}