--- /dev/null 2020-03-26 16:02:26.000000000 -0700 +++ new/test/hotspot/jtreg/runtime/HiddenClasses/HiddenClassStack.java 2020-03-26 16:02:25.000000000 -0700 @@ -0,0 +1,76 @@ +/* + * Copyright (c) 2020, Oracle and/or its affiliates. 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. + */ + +/* + * @test + * @summary Test that stack tracing isn't broken if an exception is thrown + * in a hidden class. + * @library /test/lib + * @modules java.compiler + * java.management + * @run main HiddenClassStack + */ + +import java.io.ByteArrayOutputStream; +import java.io.PrintStream; +import java.lang.invoke.MethodType; +import java.lang.invoke.MethodHandles; +import java.lang.invoke.MethodHandles.Lookup; +import static java.lang.invoke.MethodHandles.Lookup.ClassOption.*; +import jdk.test.lib.compiler.InMemoryJavaCompiler; + +// This test is based on vmTestbase/vm/mlvm/anonloader/func/classNameInStackTrace/Test.java +public class HiddenClassStack { + + static byte klassbuf[] = InMemoryJavaCompiler.compile("TestClass", + "public class TestClass { " + + " public TestClass() { " + + " throw new RuntimeException(\"boom\"); " + + " } } "); + + public static void main(String[] args) throws Throwable { + + // An exception is thrown by class loaded by lookup.defineHiddenClass(). + // Verify that the exception's stack trace contains name of the current + // test class. + try { + Lookup lookup = MethodHandles.lookup(); + Class cl = lookup.defineHiddenClass(klassbuf, false, NESTMATE).lookupClass(); + Object obj = cl.newInstance(); + throw new Exception("Expected RuntimeException not thrown"); + } catch (RuntimeException e) { + if (!e.getMessage().contains("boom")) { + throw new RuntimeException("Wrong RuntimeException, e: " + e.toString()); + } + ByteArrayOutputStream byteOS = new ByteArrayOutputStream(); + PrintStream printStream = new PrintStream(byteOS); + e.printStackTrace(printStream); + printStream.close(); + String stackTrace = byteOS.toString("ASCII"); + if (!stackTrace.contains(HiddenClassStack.class.getName())) { + throw new RuntimeException("HiddenClassStack missing from stacktrace: " + + stackTrace); + } + } + } +}