8313323: javac -g on a java file which uses unnamed variable leads to ClassFormatError when launching that class
Reviewed-by: vromero
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2dc930de12
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adfc1d6cd2
src/jdk.compiler/share/classes/com/sun/tools/javac/jvm
test/langtools/tools/javac/unnamed
@ -2189,6 +2189,8 @@ public class Code {
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((var.sym.owner.flags() & Flags.LAMBDA_METHOD) == 0 ||
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(var.sym.flags() & Flags.PARAMETER) == 0);
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if (ignoredSyntheticVar) return;
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//don't include unnamed variables:
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if (var.sym.name == var.sym.name.table.names.empty) return ;
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if (varBuffer == null)
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varBuffer = new LocalVar[20];
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else
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@ -0,0 +1,49 @@
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/*
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* Copyright (c) 2023, 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.
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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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/**
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* @test
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* @bug 8313323
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* @summary Verify javac does not produce incorrect LocalVariableTable
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* @enablePreview
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* @compile -g UnnamedLocalVariableTable.java
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* @run main UnnamedLocalVariableTable
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*/
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public class UnnamedLocalVariableTable {
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public static void main(String... args) {
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try {
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int _ = 0;
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if (args[0] instanceof String _) {
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System.err.println("1");
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}
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I i = _ -> {};
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java.util.List<String> _ = null;
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} catch (Exception _) {
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System.err.println("2");
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}
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}
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interface I {
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public void test(String s);
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}
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}
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