diff --git a/java/java-tests/testData/psi/cls/mirror/$BuckClass.txt b/java/java-tests/testData/psi/cls/mirror/$BuckClass.txt
new file mode 100644
index 000000000000..4e3899f22d42
--- /dev/null
+++ b/java/java-tests/testData/psi/cls/mirror/$BuckClass.txt
@@ -0,0 +1,12 @@
+
+  // IntelliJ API Decompiler stub source generated from a class file
+  // Implementation of methods is not available
+
+package pkg;
+
+class $BuckClass  {
+    
+    $BuckClass() { /* compiled code */ }
+    
+    static pkg.$BuckClass getInstance() { /* compiled code */ }
+}
diff --git a/java/java-tests/testData/psi/cls/mirror/EmptyEnum.txt b/java/java-tests/testData/psi/cls/mirror/EmptyEnum.txt
new file mode 100644
index 000000000000..30c4cd130a63
--- /dev/null
+++ b/java/java-tests/testData/psi/cls/mirror/EmptyEnum.txt
@@ -0,0 +1,14 @@
+
+  // IntelliJ API Decompiler stub source generated from a class file
+  // Implementation of methods is not available
+
+package pkg;
+
+final enum EmptyEnum {
+    ;
+    public static pkg.EmptyEnum[] values() { /* compiled code */ }
+    
+    public static pkg.EmptyEnum valueOf(java.lang.String s) { /* compiled code */ }
+    
+    private EmptyEnum() { /* compiled code */ }
+}
diff --git a/java/java-tests/testData/psi/cls/mirror/ExtMethods.txt b/java/java-tests/testData/psi/cls/mirror/ExtMethods.txt
new file mode 100644
index 000000000000..5f4898ab4d87
--- /dev/null
+++ b/java/java-tests/testData/psi/cls/mirror/ExtMethods.txt
@@ -0,0 +1,12 @@
+
+  // IntelliJ API Decompiler stub source generated from a class file
+  // Implementation of methods is not available
+
+package pkg;
+
+interface ExtMethods  {
+    
+    void m1();
+    
+    void m2() { /* compiled code */ }
+}
diff --git a/java/java-tests/testData/psi/cls/mirror/MethodReceiver.txt b/java/java-tests/testData/psi/cls/mirror/MethodReceiver.txt
new file mode 100644
index 000000000000..71213b8ead80
--- /dev/null
+++ b/java/java-tests/testData/psi/cls/mirror/MethodReceiver.txt
@@ -0,0 +1,15 @@
+
+  // IntelliJ API Decompiler stub source generated from a class file
+  // Implementation of methods is not available
+
+package pkg;
+
+class MethodReceiver  {
+    
+    MethodReceiver() { /* compiled code */ }
+    
+    void m(int i) { /* compiled code */ }
+    
+    static @interface A {
+    }
+}
diff --git a/java/java-tests/testData/psi/cls/mirror/package-info.txt b/java/java-tests/testData/psi/cls/mirror/package-info.txt
new file mode 100644
index 000000000000..48aa009cc146
--- /dev/null
+++ b/java/java-tests/testData/psi/cls/mirror/package-info.txt
@@ -0,0 +1,9 @@
+
+  // IntelliJ API Decompiler stub source generated from a class file
+  // Implementation of methods is not available
+
+package pkg;
+
+@pkg.PkgAnno
+interface $$package-info /* Real name is 'package-info' */  {
+}
diff --git a/java/java-tests/testData/psi/cls/mirror/pkg/$BuckClass.class b/java/java-tests/testData/psi/cls/mirror/pkg/$BuckClass.class
new file mode 100644
index 000000000000..6ac4f3babd7f
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diff --git a/java/java-tests/testData/psi/cls/mirror/pkg/EmptyEnum.class b/java/java-tests/testData/psi/cls/mirror/pkg/EmptyEnum.class
new file mode 100644
index 000000000000..2ffd189e8fce
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diff --git a/java/java-tests/testData/psi/cls/mirror/pkg/ExtMethods.class b/java/java-tests/testData/psi/cls/mirror/pkg/ExtMethods.class
new file mode 100644
index 000000000000..6404c7100249
Binary files /dev/null and b/java/java-tests/testData/psi/cls/mirror/pkg/ExtMethods.class differ
diff --git a/java/java-tests/testData/psi/cls/mirror/pkg/MethodReceiver$A.class b/java/java-tests/testData/psi/cls/mirror/pkg/MethodReceiver$A.class
new file mode 100644
index 000000000000..88ff02d2b73c
Binary files /dev/null and b/java/java-tests/testData/psi/cls/mirror/pkg/MethodReceiver$A.class differ
diff --git a/java/java-tests/testData/psi/cls/mirror/pkg/MethodReceiver.class b/java/java-tests/testData/psi/cls/mirror/pkg/MethodReceiver.class
new file mode 100644
index 000000000000..b58fd8e185c2
Binary files /dev/null and b/java/java-tests/testData/psi/cls/mirror/pkg/MethodReceiver.class differ
diff --git a/java/java-tests/testData/psi/cls/mirror/pkg/PkgAnno.class b/java/java-tests/testData/psi/cls/mirror/pkg/PkgAnno.class
new file mode 100644
index 000000000000..50cbb5902df0
Binary files /dev/null and b/java/java-tests/testData/psi/cls/mirror/pkg/PkgAnno.class differ
diff --git a/java/java-tests/testData/psi/cls/mirror/pkg/package-info.class b/java/java-tests/testData/psi/cls/mirror/pkg/package-info.class
new file mode 100644
index 000000000000..0fbbecf68821
Binary files /dev/null and b/java/java-tests/testData/psi/cls/mirror/pkg/package-info.class differ
diff --git a/java/java-tests/testData/psi/cls/mirror/src/pkg/$BuckClass.java b/java/java-tests/testData/psi/cls/mirror/src/pkg/$BuckClass.java
new file mode 100644
index 000000000000..a7736cc02eca
--- /dev/null
+++ b/java/java-tests/testData/psi/cls/mirror/src/pkg/$BuckClass.java
@@ -0,0 +1,5 @@
+package pkg;
+
+class $BuckClass {
+  static $BuckClass getInstance() { return null; }
+}
diff --git a/java/java-tests/testData/psi/cls/mirror/src/pkg/EmptyEnum.java b/java/java-tests/testData/psi/cls/mirror/src/pkg/EmptyEnum.java
new file mode 100644
index 000000000000..3784ac812c3c
--- /dev/null
+++ b/java/java-tests/testData/psi/cls/mirror/src/pkg/EmptyEnum.java
@@ -0,0 +1,3 @@
+package pkg;
+
+enum EmptyEnum { }
\ No newline at end of file
diff --git a/java/java-tests/testData/psi/cls/mirror/src/pkg/ExtMethods.java b/java/java-tests/testData/psi/cls/mirror/src/pkg/ExtMethods.java
new file mode 100644
index 000000000000..82c281b7a86c
--- /dev/null
+++ b/java/java-tests/testData/psi/cls/mirror/src/pkg/ExtMethods.java
@@ -0,0 +1,6 @@
+package pkg;
+
+interface ExtMethods {
+  void m1();
+  void m2() default { System.out.println("Hello there."); }
+}
diff --git a/java/java-tests/testData/psi/cls/mirror/src/pkg/MethodReceiver.java b/java/java-tests/testData/psi/cls/mirror/src/pkg/MethodReceiver.java
new file mode 100644
index 000000000000..9bdb2c657f79
--- /dev/null
+++ b/java/java-tests/testData/psi/cls/mirror/src/pkg/MethodReceiver.java
@@ -0,0 +1,6 @@
+package pkg;
+
+class MethodReceiver {
+  @interface A { }
+  void m(@A MethodReceiver this, int i) { System.out.println("i=" + i); }
+}
diff --git a/java/java-tests/testData/psi/cls/mirror/src/pkg/PkgAnno.java b/java/java-tests/testData/psi/cls/mirror/src/pkg/PkgAnno.java
new file mode 100644
index 000000000000..d6091f63b848
--- /dev/null
+++ b/java/java-tests/testData/psi/cls/mirror/src/pkg/PkgAnno.java
@@ -0,0 +1,3 @@
+package pkg;
+
+@interface PkgAnno { }
diff --git a/java/java-tests/testData/psi/cls/mirror/src/pkg/package-info.java b/java/java-tests/testData/psi/cls/mirror/src/pkg/package-info.java
new file mode 100644
index 000000000000..a92068a893fd
--- /dev/null
+++ b/java/java-tests/testData/psi/cls/mirror/src/pkg/package-info.java
@@ -0,0 +1,2 @@
+@PkgAnno
+package pkg;
diff --git a/java/java-tests/testSrc/com/intellij/psi/ClsMirrorBuildingTest.java b/java/java-tests/testSrc/com/intellij/psi/ClsMirrorBuildingTest.java
new file mode 100644
index 000000000000..f4099893ff61
--- /dev/null
+++ b/java/java-tests/testSrc/com/intellij/psi/ClsMirrorBuildingTest.java
@@ -0,0 +1,66 @@
+/*
+ * Copyright 2000-2012 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.JavaTestUtil;
+import com.intellij.openapi.util.text.StringUtil;
+import com.intellij.openapi.vfs.LocalFileSystem;
+import com.intellij.openapi.vfs.VirtualFile;
+import com.intellij.testFramework.LightIdeaTestCase;
+import com.intellij.testFramework.PlatformTestUtil;
+
+import java.io.IOException;
+
+public class ClsMirrorBuildingTest extends LightIdeaTestCase {
+  public void testEmptyEnum() { doTest(); }
+  public void test$BuckClass() { doTest(); }
+  public void testExtMethods() { doTest(); }
+  public void testMethodReceiver() { doTest(); }
+  public void testPackageInfo() { doTest("package-info"); }
+
+  private void doTest() {
+    doTest(getTestName(false));
+  }
+
+  private static void doTest(String name) {
+    String testDir = JavaTestUtil.getJavaTestDataPath() + "/psi/cls/mirror/";
+
+    String clsPath = testDir + "pkg/" + name + ".class";
+    VirtualFile vFile = LocalFileSystem.getInstance().findFileByPath(clsPath);
+    assertNotNull(clsPath, vFile);
+    PsiFile clsFile = getPsiManager().findFile(vFile);
+    assertNotNull(vFile.getPath(), clsFile);
+
+    String expected;
+    try {
+      String txtPath = testDir + name + ".txt";
+      expected = StringUtil.trimTrailing(PlatformTestUtil.loadFileText(txtPath));
+    }
+    catch (IOException e) {
+      fail(e.getMessage());
+      return;
+    }
+    assertEquals(expected, clsFile.getText());
+
+    /*String srcPath = testDir + "src/pkg/" + name + ".java";
+    vFile = LocalFileSystem.getInstance().findFileByPath(srcPath);
+    assertNotNull(srcPath, vFile);
+    PsiFile srcFile = getPsiManager().findFile(vFile);
+    assertNotNull(vFile.getPath(), srcFile);
+
+    ((ClsFileImpl)clsFile).setMirror((TreeElement)srcFile.getNode());*/
+  }
+}