8154270: javac wrongly rejects some class literals as annotation element values

Reviewed-by: mcimadamore

langtools/src/jdk.compiler/share/classes/com/sun/tools/javac/jvm/ClassWriter.java

@@ -826,7 +826,7 @@ public class ClassWriter extends ClassFile {
         }
         public void visitClass(Attribute.Class clazz) {
             databuf.appendByte('c');
-            databuf.appendChar(pool.put(typeSig(clazz.classType)));
+            databuf.appendChar(pool.put(typeSig(types.erasure(clazz.classType))));
         }
         public void visitCompound(Attribute.Compound compound) {
             databuf.appendByte('@');

langtools/test/tools/javac/annotations/T8154270/EraseClassInfoAnnotationValueTest.java

@@ -0,0 +1,57 @@
+/*
+ * Copyright (c) 2016 Google Inc. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+import java.lang.annotation.Retention;
+import java.lang.annotation.RetentionPolicy;
+import java.util.Arrays;
+
+/*
+ * @test
+ * @bug 8154270
+ * @summary javac wrongly rejects some class literals as annotation element values
+ * @compile EraseClassInfoAnnotationValueTest.java
+ * @compile -implicit:none Other.java
+ * @run main EraseClassInfoAnnotationValueTest
+ */
+public class EraseClassInfoAnnotationValueTest {
+
+  @Retention(RetentionPolicy.RUNTIME)
+  public @interface A {
+    Class<?> value();
+  }
+
+  static class ParametricType<T> {
+
+    @A(Inner.class)
+    public static class Nested {}
+
+    public class Inner {}
+  }
+
+  public static void main(String[] args) {
+    Class<?> clazz = ParametricType.Nested.class.getAnnotation(A.class).value();
+    if (!clazz.equals(ParametricType.Inner.class)) {
+      throw new AssertionError(clazz);
+    }
+  }
+}

langtools/test/tools/javac/annotations/T8154270/Other.java

@@ -0,0 +1,29 @@
+/*
+ * Copyright (c) 2016 Google Inc. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+/**
+ * Tests separate compilation.
+ */
+public class Other {
+  Class<?> clazz = EraseClassInfoAnnotationValueTest.ParametricType.Nested.class;
+}