Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

JDK-8244315 [lworld] The hierarchy between V$ref and V$val must be sealed #123

wants to merge 1 commit into from
Changes from all commits
File filter
Filter by extension
Failed to load comments.
Jump to
Jump to file
Failed to load files.
Diff view
Diff view
@@ -1685,7 +1685,7 @@ public ClassSymbol referenceProjection() {
ct.projection = projectedType;

Name projectionName ='$',;
long projectionFlags = (this.flags() & ~(VALUE | UNATTRIBUTED));
long projectionFlags = (this.flags() & ~(VALUE | UNATTRIBUTED | FINAL)) | SEALED;

projection = new ClassSymbol(projectionFlags, projectionName, projectedType, this.owner);
projection.members_field = WriteableScope.create(projection);
@@ -1709,6 +1709,7 @@ public ClassSymbol referenceProjection() {
projection.completer = Completer.NULL_COMPLETER;
projection.sourcefile = this.sourcefile;
projection.flatname = this.flatname.append('$',;
projection.permitted = List.of(this);
projection.projection = this;
projectedType.tsym = projection;
return projection;
@@ -0,0 +1,49 @@
* Copyright (c) 2020, Oracle and/or its affiliates. All rights reserved.
* 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. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
* 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 if you need additional information or have any
* questions.

* @test
* @summary Check to see if the reference projection is a sealed class
* @bug 8244315
* @modules jdk.jdeps/
* @compile -XDallowWithFieldOperator
* @run main ProjectionSealed


public class ProjectionSealed {
public static void main(String[] args) throws Exception {
ClassFile clsProj ="Point$ref.class"));

PermittedSubclasses_attribute permitted = (PermittedSubclasses_attribute)clsProj.attributes.get(Attribute.PermittedSubclasses);
CONSTANT_Class_info[] infos = permitted != null ? permitted.getSubtypes(clsProj.constant_pool) : new CONSTANT_Class_info[0];

if (infos.length != 1 || !infos[0].getName().equals("Point")) {
throw new RuntimeException("Sealed classes not present");