jdk/test/com/sun/jdi/MethodEntryExitEvents.java
changeset 2 90ce3da70b43
child 5506 202f599c92aa
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/jdk/test/com/sun/jdi/MethodEntryExitEvents.java	Sat Dec 01 00:00:00 2007 +0000
@@ -0,0 +1,290 @@
+/*
+ * Copyright 2001-2007 Sun Microsystems, Inc.  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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.com if you need additional information or
+ * have any questions.
+ */
+
+/**
+ *  @test
+ *  @bug 4409241 4432820
+ *  @summary Test the bug fix for: MethodExitEvents disappear when Object-Methods are called from main
+ *  @author Tim Bell
+ *
+ *  @run build TestScaffold VMConnection TargetListener TargetAdapter
+ *  @run compile -g MethodEntryExitEvents.java
+ *  @run main MethodEntryExitEvents SUSPEND_EVENT_THREAD MethodEntryExitEventsDebugee
+ *  @run main MethodEntryExitEvents SUSPEND_NONE MethodEntryExitEventsDebugee
+ *  @run main MethodEntryExitEvents SUSPEND_ALL MethodEntryExitEventsDebugee
+ */
+import com.sun.jdi.*;
+import com.sun.jdi.event.*;
+import com.sun.jdi.request.*;
+import java.util.*;
+
+class t2 {
+    public static void sayHello1(int i, int j) {
+        sayHello2(i, j);
+    }
+    public static void sayHello2(int i, int j) {
+        sayHello3(i, j);
+    }
+    public static void sayHello3(int i, int j) {
+        sayHello4(i, j);
+    }
+    public static void sayHello4(int i, int j) {
+        sayHello5(i, j);
+    }
+    public static void sayHello5(int i, int j) {
+        if (i < 2) {
+            sayHello1(++i, j);
+        } else {
+            System.out.print  ("MethodEntryExitEventsDebugee: ");
+            System.out.print  ("    -->> Hello.  j is: ");
+            System.out.print  (j);
+            System.out.println(" <<--");
+        }
+    }
+}
+
+class MethodEntryExitEventsDebugee {
+    public static void loopComplete () {
+        /*
+         * The implementation here is deliberately inefficient
+         * because the debugger is still watching this method.
+         */
+        StringBuffer sb = new StringBuffer();
+        sb.append ("MethodEntryExitEventsDebugee: ");
+        sb.append ("Executing loopComplete method for a graceful shutdown...");
+        String s = sb.toString();
+        for (int i = 0; i < s.length(); i++) {
+            char c = s.charAt(i);
+            System.out.print(c);
+        }
+        System.out.println();
+    }
+    public static void main(String[] args) {
+        t2 test = new t2();
+        for (int j = 0; j < 3; j++) {
+            test.sayHello1(0, j);
+        }
+        loopComplete();
+    }
+}
+
+
+public class MethodEntryExitEvents extends TestScaffold {
+    int sessionSuspendPolicy = EventRequest.SUSPEND_ALL;
+    StepRequest stepReq = null; //Only one step request allowed per thread
+    boolean finishedCounting = false;
+
+    /*
+     * Enter main() , then t2.<init>, then sayHello[1,2,3,4,5] 15 times 3 loops,
+     * then loopComplete()
+     */
+    final int expectedEntryCount = 1 + 1 + (15 * 3) + 1;
+    int methodEntryCount = 0;
+
+    /*
+     * Exit t2.<init>, then sayHello[1,2,3,4,5] 15 times 3 loopa
+     * (event monitoring is cancelled before we exit loopComplete() or main())
+     */
+    final int expectedExitCount = 1 + (15 * 3);
+    int methodExitCount = 0;
+
+    /*
+     * Class patterns for which we don't want events (copied
+     * from the "Trace.java" example):
+     *     http://java.sun.com/javase/technologies/core/toolsapis/jpda/
+     */
+    private String[] excludes = {"java.*", "javax.*", "sun.*",
+                                 "com.sun.*"};
+
+    MethodEntryExitEvents (String args[]) {
+        super(args);
+    }
+
+    private void usage(String[] args) throws Exception {
+        StringBuffer sb = new StringBuffer("Usage: ");
+        sb.append(System.getProperty("line.separator"));
+        sb.append("  java ");
+        sb.append(getClass().getName());
+        sb.append(" [SUSPEND_NONE | SUSPEND_EVENT_THREAD | SUSPEND_ALL]");
+        sb.append(" [MethodEntryExitEventsDebugee | -connect <connector options...>] ");
+        throw new Exception (sb.toString());
+    }
+
+    public static void main(String[] args)      throws Exception {
+        MethodEntryExitEvents meee = new MethodEntryExitEvents (args);
+        meee.startTests();
+    }
+
+    public void exceptionThrown(ExceptionEvent event) {
+        System.out.println("Exception: " + event.exception());
+        System.out.println(" at catch location: " + event.catchLocation());
+
+        // Step to the catch
+        if (stepReq == null) {
+            stepReq =
+                eventRequestManager().createStepRequest(event.thread(),
+                                                        StepRequest.STEP_MIN,
+                                                        StepRequest.STEP_INTO);
+            stepReq.addCountFilter(1);  // next step only
+            stepReq.setSuspendPolicy(EventRequest.SUSPEND_ALL);
+        }
+        stepReq.enable();
+    }
+    public void stepCompleted(StepEvent event) {
+        System.out.println("stepCompleted: line#=" +
+                           event.location().lineNumber() +
+                           " event=" + event);
+        // disable the step and then run to completion
+        //eventRequestManager().deleteEventRequest(event.request());
+        StepRequest str= (StepRequest)event.request();
+        str.disable();
+    }
+    public void methodEntered(MethodEntryEvent event) {
+        if (! finishedCounting) {
+            // We have to count the entry to loopComplete, but
+            // not the exit
+            methodEntryCount++;
+            System.out.print  (" Method entry number: ");
+            System.out.print  (methodEntryCount);
+            System.out.print  ("  :  ");
+            System.out.println(event);
+            if ("loopComplete".equals(event.method().name())) {
+                finishedCounting = true;
+            }
+        }
+    }
+
+    public void methodExited(MethodExitEvent event) {
+        if (! finishedCounting){
+            methodExitCount++;
+            System.out.print  (" Method exit  number: ");
+            System.out.print  (methodExitCount);
+            System.out.print  ("  :  ");
+            System.out.println(event);
+        }
+    }
+
+    protected void runTests() throws Exception {
+        if (args.length < 1) {
+            usage(args);
+        }
+        //Pick up the SUSPEND_xxx in first argument
+        if ("SUSPEND_NONE".equals(args[0])) {
+            sessionSuspendPolicy = EventRequest.SUSPEND_NONE;
+        } else if ("SUSPEND_EVENT_THREAD".equals(args[0])) {
+            sessionSuspendPolicy = EventRequest.SUSPEND_EVENT_THREAD;
+        } else if ("SUSPEND_ALL".equals(args[0])) {
+            sessionSuspendPolicy = EventRequest.SUSPEND_ALL;
+        } else {
+            usage(args);
+        }
+        System.out.print("Suspend policy is: ");
+        System.out.println(args[0]);
+
+        // Skip the test arg
+        String[] args2 = new String[args.length - 1];
+        System.arraycopy(args, 1, args2, 0, args.length - 1);
+
+        if (args2.length < 1) {
+            usage(args2);
+        }
+        List argList = new ArrayList(Arrays.asList(args2));
+        System.out.println("run args: " + argList);
+        connect((String[]) argList.toArray(args2));
+        waitForVMStart();
+
+        try {
+
+            /*
+             * Ask for Exception events
+             */
+            ExceptionRequest exceptionRequest =
+                eventRequestManager().createExceptionRequest(null, // refType (null == all instances)
+                                                             true, // notifyCaught
+                                                             true);// notifyUncaught
+            exceptionRequest.setSuspendPolicy(EventRequest.SUSPEND_ALL);
+            exceptionRequest.enable();
+
+            /*
+             * Ask for method entry events
+             */
+            MethodEntryRequest entryRequest =
+               eventRequestManager().createMethodEntryRequest();
+            for (int i=0; i<excludes.length; ++i) {
+                entryRequest.addClassExclusionFilter(excludes[i]);
+            }
+            entryRequest.setSuspendPolicy(sessionSuspendPolicy);
+            entryRequest.enable();
+
+            /*
+             * Ask for method exit events
+             */
+            MethodExitRequest exitRequest =
+                eventRequestManager().createMethodExitRequest();
+
+            for (int i=0; i<excludes.length; ++i) {
+                exitRequest.addClassExclusionFilter(excludes[i]);
+            }
+            exitRequest.setSuspendPolicy(sessionSuspendPolicy);
+            exitRequest.enable();
+
+            /*
+             * We are now set up to receive the notifications we want.
+             * Here we go.  This adds 'this' as a listener so
+             * that our handlers above will be called.
+             */
+
+            listenUntilVMDisconnect();
+            System.out.println("All done...");
+
+        } catch (Exception ex){
+            ex.printStackTrace();
+            testFailed = true;
+        }
+
+        if ((methodEntryCount != expectedEntryCount) ||
+            (methodExitCount != expectedExitCount)) {
+            testFailed = true;
+        }
+        if (!testFailed) {
+            System.out.println();
+            System.out.println("MethodEntryExitEvents: passed");
+            System.out.print  ("    Method entry count: ");
+            System.out.println(methodEntryCount);
+            System.out.print  ("    Method exit  count: ");
+            System.out.println(methodExitCount);
+        } else {
+            System.out.println();
+            System.out.println("MethodEntryExitEvents: failed");
+            System.out.print  ("    expected method entry count: ");
+            System.out.println(expectedEntryCount);
+            System.out.print  ("    observed method entry count: ");
+            System.out.println(methodEntryCount);
+            System.out.print  ("    expected method exit  count: ");
+            System.out.println(expectedExitCount);
+            System.out.print  ("    observed method exit  count: ");
+            System.out.println(methodExitCount);
+            throw new Exception("MethodEntryExitEvents: failed");
+        }
+    }
+}