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Java example source code file (FilterNoMatch.java)

This example Java source code file (FilterNoMatch.java) is included in the alvinalexander.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

Learn more about this Java project at its project page.

Java - Java tags/keywords

breakpointevent, breakpointrequest, eventrequestmanager, eventset, exception, failed, filternomatch, helloworldx, jdi, jdiscaffold, location, referencetype, steprequest, string, targetadapter, util

The FilterNoMatch.java Java example source code

/*
 * Copyright (c) 2001, 2013, 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
 *  @bug 4331522
 *  @summary addClassFilter("Foo") acts like "Foo*"
 *
 *  @author Robert Field/Jim Holmlund
 *
 *  @library scaffold
 *  @run build JDIScaffold VMConnection
 *  @run compile -g HelloWorld.java
 *  @run main/othervm FilterNoMatch
 */

/* This tests the patternMatch function in JDK file:
 *    .../src/share/back/eventHandler.c
 *
 * This test verifies that patterns that do not match really don't.
 * See also testcase FilterMatch.java.
 */

import java.util.*;
import com.sun.jdi.*;
import com.sun.jdi.event.*;
import com.sun.jdi.request.*;

public class FilterNoMatch extends JDIScaffold {

    static boolean listenCalled;

    public static void main(String args[]) throws Exception {
        new FilterNoMatch().startTests();
    }

    public FilterNoMatch() {
        super();
    }

    private void listen() {
        TargetAdapter adapter = new TargetAdapter() {
            EventSet set = null;

            public boolean eventSetReceived(EventSet set) {
                this.set = set;
                return false;
            }

            // This gets called if no patterns match.  If any
            // pattern is erroneously matched, then this method
            // will not get called.
            public boolean stepCompleted(StepEvent event) {
                listenCalled = true;
                System.out.println("listen: line#=" + event.location().lineNumber()
                                   + " event=" + event);
                // disable the step and then run to completion
                StepRequest str= (StepRequest)event.request();
                str.disable();
                set.resume();
                return false;
            }
        };
        listenCalled = false;
        addListener(adapter);
    }

    protected void runTests() throws Exception {
        String[] args = new String[2];
        args[0] = "-connect";
        args[1] = "com.sun.jdi.CommandLineLaunch:main=HelloWorld";

        connect(args);
        waitForVMStart();

        // VM has started, but hasn't started running the test program yet.
        EventRequestManager requestManager = vm().eventRequestManager();
        ReferenceType referenceType = resumeToPrepareOf("HelloWorld").referenceType();

        // The debuggee is stopped
        // I don't think we really have to set a bkpt and then do a step,
        // we should just be able to do a step.  Problem is the
        // createStepRequest call needs a thread and I don't know
        // yet where to get one other than from the bkpt handling :-(
        Location location = findLocation(referenceType, 3);
        BreakpointRequest request
            = requestManager.createBreakpointRequest(location);

        request.enable();

        // This does a resume, so we shouldn't come back to it until
        // the debuggee has run and hit the bkpt.
        BreakpointEvent event = (BreakpointEvent)waitForRequestedEvent(request);

        // The bkpt was hit; remove it.
        requestManager.deleteEventRequest(request);

        StepRequest request1 = requestManager.createStepRequest(event.thread(),
                                  StepRequest.STEP_LINE,StepRequest.STEP_OVER);


        // We have to filter out all these so that they don't cause the
        // listener to be called.
        request1.addClassExclusionFilter("java.*");
        request1.addClassExclusionFilter("javax.*");
        request1.addClassExclusionFilter("sun.*");
        request1.addClassExclusionFilter("com.sun.*");
        request1.addClassExclusionFilter("com.oracle.*");
        request1.addClassExclusionFilter("oracle.*");
        request1.addClassExclusionFilter("jdk.internal.*");

        // We want our listener to be called if a pattern does not match.
        // So, here we want patterns that do not match HelloWorld.
        // If any pattern here erroneously matches, then our listener
        // will not get called and the test will fail.
        request1.addClassExclusionFilter("H");
        request1.addClassExclusionFilter("HelloWorl");
        request1.addClassExclusionFilter("HelloWorldx");
        request1.addClassExclusionFilter("xHelloWorld");

        request1.addClassExclusionFilter("*elloWorldx");
        request1.addClassExclusionFilter("*elloWorl");
        request1.addClassExclusionFilter("*xHelloWorld");
        request1.addClassExclusionFilter("elloWorld*");
        request1.addClassExclusionFilter("HelloWorldx*");
        request1.addClassExclusionFilter("xHelloWorld*");

        // As a test, uncomment this line and this test should fail.
        //request1.addClassExclusionFilter("*elloWorld");


        request1.enable();
        listen();

        vm().resume();

        waitForVMDeath();

        if ( !listenCalled){
            throw new Exception( "Failed: .");
        }
        System.out.println( "Passed: ");
    }
}

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