81 lines
3.1 KiB
Java
81 lines
3.1 KiB
Java
/*
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* Copyright (c) 2019, 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 8216977
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* @summary Test null source file and negative line number from hidden frame produces correct output.
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* @library /test/lib
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* @run main/othervm -XX:+UnlockDiagnosticVMOptions -XX:+ShowHiddenFrames HiddenFrameTest visible
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* @run main/othervm -XX:+UnlockDiagnosticVMOptions -XX:-ShowHiddenFrames HiddenFrameTest hidden
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*/
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import jdk.test.lib.Asserts;
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public class HiddenFrameTest {
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@FunctionalInterface
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private static interface SomeFunctionalInterface {
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String someMethod(String a, String b);
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}
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static void assertContains(String expected, String actual, Exception e, boolean framesAreHidden) throws Exception {
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if (!framesAreHidden && !actual.contains(expected)) {
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throw new RuntimeException("Expected: " + expected + "; Actual: " + actual, e);
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} else if (framesAreHidden && actual.contains(expected)) {
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throw new RuntimeException("Unexpected: " + expected + "; Actual: " + actual, e);
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}
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}
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static void checkException(Exception e, boolean framesAreHidden) throws Exception {
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StackTraceElement[] fs = e.getStackTrace();
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if (fs.length < 2) {
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throw new RuntimeException("Exception should have at least two frames", e);
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}
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assertContains("someMethod(Unknown Source)", fs[0].toString(), e, framesAreHidden);
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}
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public static void main(String[] args) throws Exception {
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boolean framesAreHidden = false;
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if (args.length > 0) {
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String arg = args[0];
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if (arg.equals("hidden")) framesAreHidden = true;
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}
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try {
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final SomeFunctionalInterface concatter = String::concat;
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final String nullString = null;
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if (concatter != null) {
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// This throws NPE from the lambda expression which is a hidden frame
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concatter.someMethod(nullString, "validString");
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}
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} catch (NullPointerException e) {
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e.printStackTrace();
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checkException(e, framesAreHidden);
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}
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}
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}
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