48d8650ae1
8254047: [JEP 390] Revise "value-based class" & apply to wrappers 8252181: [JEP 390] Define & apply annotation jdk.internal.ValueBased 8252183: [JEP 390] Add 'lint' warning for @ValueBased classes 8257027: [JEP 390] Diagnose synchronization on @ValueBased classes 8252180: [JEP 390] Deprecate wrapper class constructors for removal Co-authored-by: Roger Riggs <rriggs@openjdk.org> Co-authored-by: Srikanth Adayapalam <sadayapalam@openjdk.org> Co-authored-by: Lois Foltan <lfoltan@openjdk.org> Reviewed-by: rriggs, hseigel, mchung, darcy
55 lines
1.6 KiB
Java
55 lines
1.6 KiB
Java
/*
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* Copyright (c) 2020, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation. Oracle designates this
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* particular file as subject to the "Classpath" exception as provided
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* by Oracle in the LICENSE file that accompanied this code.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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package java.lang;
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@jdk.internal.ValueBased
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public final class SomeVbc {
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public SomeVbc() {}
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final String ref = "String";
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void abuseVbc() {
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synchronized(ref) { // OK
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synchronized (this) { // WARN
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}
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}
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}
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}
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final class AuxilliaryAbuseOfVbc {
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void abuseVbc(SomeVbc vbc) {
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synchronized(this) { // OK
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synchronized (vbc) { // WARN
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}
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}
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}
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}
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