This patch adds a new event to JDWP (correct to the spec this time :-) ) as well as changing from *.class for to defined constants to use with the getParameter() method inside the *Event classes. This is to fix an issue with the new ExceptionEvent since the old method of calling getParameter would not allow filtering by caught/uncaught exceptions. My thanks to anyone who reviews and commits.

-Kyle

ChangeLog:

2006-06-09   Kyle Galloway   <[EMAIL PROTECTED]>

   * gnu/classpath/jdwp/event/BreakpointEvent.java: Added Object
   _instance for filter compatibility
   * gnu/classpath/jdwp/event/BreakpointEvent.java(getParameter):
   changed from Class type to constants
   * gnu/classpath/jdwp/event/ClassPrepareEventEvent.java(getParameter):
   changed from Class type to constants
   * gnu/classpath/jdwp/event/Event.java: Added constants for
   type and changed the abstract method getParameters to match
   * gnu/classpath/jdwp/event/ThreadEndEvent.java(getParameter):
   changed from Class type to constants
   * gnu/classpath/jdwp/event/ThreadStartEvent.java(getParameter):
   changed from Class type to constants
   * gnu/classpath/jdwp/event/VmDeathEvent.java(getParameter):
   changed from Class type to constants
   * gnu/classpath/jdwp/event/VmInitEvent.java(getParameter):
   changed from Class type to constants
   * gnu/classpath/jdwp/event/ClassMatchFilter.java(matches):
   changed from Class type to constants
   * gnu/classpath/jdwp/event/ClassOnlyFilter.java(matches):
   changed from Class type to constants
   * gnu/classpath/jdwp/event/InstanceOnlyFilter.java(matches):
   changed from Class type to constants
   * gnu/classpath/jdwp/event/ThreadOnlyFilter.java(matches):
   changed from Class type to constants
   * gnu/classpath/jdwp/event/ExceptionEvent.java: New file


Index: gnu/classpath/jdwp/event/BreakpointEvent.java
===================================================================
RCS file: /sources/classpath/classpath/gnu/classpath/jdwp/event/BreakpointEvent.java,v
retrieving revision 1.1
diff -u -r1.1 BreakpointEvent.java
--- gnu/classpath/jdwp/event/BreakpointEvent.java	15 Mar 2006 22:55:54 -0000	1.1
+++ gnu/classpath/jdwp/event/BreakpointEvent.java	9 Jun 2006 14:00:55 -0000
@@ -62,6 +62,9 @@
 
   // Location where breakpoint occurred
   private Location _location;
+  
+  //object instance
+  private Object _instance;
 
   /**
    * Constructs a new BreakpointEvent
@@ -69,11 +72,12 @@
    * @param thread  thread in which event occurred
    * @param loc     location where breakpoint occurred
    */
-  public BreakpointEvent(Thread thread, Location loc)
+  public BreakpointEvent(Thread thread, Location loc, Object instance)
   {
     super(JdwpConstants.EventKind.BREAKPOINT);
     _thread = thread;
     _location = loc;
+    _instance = instance;
   }
 
   /**
@@ -83,12 +87,14 @@
    * @param type  the type of parameter desired
    * @returns the desired parameter or null
    */
-  public Object getParameter(Class type)
+  public Object getParameter(int type)
   {
-    if (type == ThreadId.class)
+    if (type == EVENT_THREAD)
       return _thread;
-    else if (type == Location.class)
+    else if (type == EVENT_LOCATION)
       return _location;
+    else if (type == EVENT_INSTANCE)
+      return _instance;
 
     return null;
   }
Index: gnu/classpath/jdwp/event/ClassPrepareEvent.java
===================================================================
RCS file: /sources/classpath/classpath/gnu/classpath/jdwp/event/ClassPrepareEvent.java,v
retrieving revision 1.1
diff -u -r1.1 ClassPrepareEvent.java
--- gnu/classpath/jdwp/event/ClassPrepareEvent.java	30 Aug 2005 00:51:10 -0000	1.1
+++ gnu/classpath/jdwp/event/ClassPrepareEvent.java	9 Jun 2006 14:00:55 -0000
@@ -116,11 +116,11 @@
    * @param type  the type of parameter desired
    * @returns the desired parameter or <code>null</code>
    */
-  public Object getParameter (Class type)
+  public Object getParameter (int type)
   {
-    if (type == ThreadId.class)
+    if (type == EVENT_THREAD)
       return _thread;
-    else if (type == ReferenceTypeId.class)
+    else if (type == EVENT_CLASS)
       return _class;
 
     return null;
Index: gnu/classpath/jdwp/event/Event.java
===================================================================
RCS file: /sources/classpath/classpath/gnu/classpath/jdwp/event/Event.java,v
retrieving revision 1.1
diff -u -r1.1 Event.java
--- gnu/classpath/jdwp/event/Event.java	30 Aug 2005 00:51:10 -0000	1.1
+++ gnu/classpath/jdwp/event/Event.java	9 Jun 2006 14:00:55 -0000
@@ -54,6 +54,41 @@
  */
 public abstract class Event
 {
+  /**
+   * The class of the object in which the event occurred
+   */
+  public static final int EVENT_CLASS = 1;
+  
+  /**
+   * The thread where the event occurred
+   */
+  public static final int EVENT_THREAD = 2;
+  
+  /**
+   * The location where an event occurred
+   */
+  public static final int EVENT_LOCATION = 3;
+  
+  /**
+   * The instance of the class where the event occurred
+   */
+  public static final int EVENT_INSTANCE = 4;
+  
+  /**
+   * The field acted on by an event
+   */
+  public static final int EVENT_FIELD = 5;
+
+  /**
+   * The class of the exception for ExceptionEvent
+   */
+  public static final int EVENT_EXCEPTION_CLASS = 6;
+
+  /**
+   * Whether this exception was caught (only valid for ExceptionEvents)
+   */
+  public static final int EVENT_EXCEPTION_CAUGHT = 7;  
+  
   // The kind of event represented by this event
   private byte _eventKind;
 
@@ -93,11 +128,11 @@
    * method with <code>ThreadId.class</code> should return a
    * <code>Thread</code>.
    *
-   * @param type  the type of parameter to return
+   * @param type  the type of parameter to return (see constants above)
    * @returns the parameter (not the ID) or <code>null</code> if none is
    *          is defined for this event
    */
-  public abstract Object getParameter (Class type);
+  public abstract Object getParameter (int type);
 
   /**
    * Converts this event into to a JDWP packet
Index: gnu/classpath/jdwp/event/ThreadEndEvent.java
===================================================================
RCS file: /sources/classpath/classpath/gnu/classpath/jdwp/event/ThreadEndEvent.java,v
retrieving revision 1.1
diff -u -r1.1 ThreadEndEvent.java
--- gnu/classpath/jdwp/event/ThreadEndEvent.java	30 Aug 2005 00:51:10 -0000	1.1
+++ gnu/classpath/jdwp/event/ThreadEndEvent.java	9 Jun 2006 14:00:55 -0000
@@ -81,9 +81,9 @@
    * @param type  the type of parameter desired
    * @returns the desired parameter or <code>null</code>
    */
-  public Object getParameter (Class type)
+  public Object getParameter (int type)
   {
-    if (type == ThreadId.class)
+    if (type == EVENT_THREAD)
       return _thread;
 
     return null;
Index: gnu/classpath/jdwp/event/ThreadStartEvent.java
===================================================================
RCS file: /sources/classpath/classpath/gnu/classpath/jdwp/event/ThreadStartEvent.java,v
retrieving revision 1.2
diff -u -r1.2 ThreadStartEvent.java
--- gnu/classpath/jdwp/event/ThreadStartEvent.java	9 Mar 2006 23:18:29 -0000	1.2
+++ gnu/classpath/jdwp/event/ThreadStartEvent.java	9 Jun 2006 14:00:55 -0000
@@ -86,9 +86,9 @@
    * @param type  the type of parameter desired
    * @returns the desired parameter or <code>null</code>
    */
-  public Object getParameter (Class type)
+  public Object getParameter (int type)
   {
-    if (type == ThreadId.class)
+    if (type == EVENT_THREAD)
       return _thread;
 
     return null;
Index: gnu/classpath/jdwp/event/VmDeathEvent.java
===================================================================
RCS file: /sources/classpath/classpath/gnu/classpath/jdwp/event/VmDeathEvent.java,v
retrieving revision 1.2
diff -u -r1.2 VmDeathEvent.java
--- gnu/classpath/jdwp/event/VmDeathEvent.java	9 Mar 2006 23:18:29 -0000	1.2
+++ gnu/classpath/jdwp/event/VmDeathEvent.java	9 Jun 2006 14:00:55 -0000
@@ -67,7 +67,7 @@
    * @param type  the type of parameter desired
    * @returns the desired parameter or <code>null</code>
    */
-  public Object getParameter (Class type)
+  public Object getParameter (int type)
   {
     return null;
   }
Index: gnu/classpath/jdwp/event/VmInitEvent.java
===================================================================
RCS file: /sources/classpath/classpath/gnu/classpath/jdwp/event/VmInitEvent.java,v
retrieving revision 1.1
diff -u -r1.1 VmInitEvent.java
--- gnu/classpath/jdwp/event/VmInitEvent.java	30 Aug 2005 00:51:10 -0000	1.1
+++ gnu/classpath/jdwp/event/VmInitEvent.java	9 Jun 2006 14:00:55 -0000
@@ -76,7 +76,7 @@
    * @param type  the type of parameter desired
    * @returns the desired parameter or <code>null</code>
    */
-  public Object getParameter (Class type)
+  public Object getParameter (int type)
   {
     return null;
   }
Index: gnu/classpath/jdwp/event/filters/ClassMatchFilter.java
===================================================================
RCS file: /sources/classpath/classpath/gnu/classpath/jdwp/event/filters/ClassMatchFilter.java,v
retrieving revision 1.3
diff -u -r1.3 ClassMatchFilter.java
--- gnu/classpath/jdwp/event/filters/ClassMatchFilter.java	9 Mar 2006 19:49:59 -0000	1.3
+++ gnu/classpath/jdwp/event/filters/ClassMatchFilter.java	9 Jun 2006 14:00:55 -0000
@@ -41,7 +41,6 @@
 
 import gnu.classpath.jdwp.event.Event;
 import gnu.classpath.jdwp.exception.InvalidStringException;
-import gnu.classpath.jdwp.id.ReferenceTypeId;
 
 /**
  * An event filter which includes events matching a 
@@ -91,7 +90,7 @@
    */
   public boolean matches (Event event)
   {
-    Object type = event.getParameter (ReferenceTypeId.class);
+    Object type = event.getParameter (Event.EVENT_CLASS);
     if (type != null)
       {
 	Class eventClass = (Class) type;
Index: gnu/classpath/jdwp/event/filters/ClassOnlyFilter.java
===================================================================
RCS file: /sources/classpath/classpath/gnu/classpath/jdwp/event/filters/ClassOnlyFilter.java,v
retrieving revision 1.1
diff -u -r1.1 ClassOnlyFilter.java
--- gnu/classpath/jdwp/event/filters/ClassOnlyFilter.java	26 Aug 2005 21:52:28 -0000	1.1
+++ gnu/classpath/jdwp/event/filters/ClassOnlyFilter.java	9 Jun 2006 14:00:55 -0000
@@ -87,7 +87,7 @@
    */
   public boolean matches (Event event)
   {
-    Object type = event.getParameter (ReferenceTypeId.class);
+    Object type = event.getParameter (Event.EVENT_CLASS);
     if (type != null)
       {
 	try
Index: gnu/classpath/jdwp/event/filters/InstanceOnlyFilter.java
===================================================================
RCS file: /sources/classpath/classpath/gnu/classpath/jdwp/event/filters/InstanceOnlyFilter.java,v
retrieving revision 1.1
diff -u -r1.1 InstanceOnlyFilter.java
--- gnu/classpath/jdwp/event/filters/InstanceOnlyFilter.java	26 Aug 2005 21:52:28 -0000	1.1
+++ gnu/classpath/jdwp/event/filters/InstanceOnlyFilter.java	9 Jun 2006 14:00:55 -0000
@@ -89,7 +89,7 @@
    */
   public boolean matches (Event event)
   {
-    Object eventInstance = event.getParameter (ObjectId.class);
+    Object eventInstance = event.getParameter (Event.EVENT_INSTANCE);
     if (eventInstance != null)
       {
 	Object myInstance = _instance.getReference().get ();
Index: gnu/classpath/jdwp/event/filters/ThreadOnlyFilter.java
===================================================================
RCS file: /sources/classpath/classpath/gnu/classpath/jdwp/event/filters/ThreadOnlyFilter.java,v
retrieving revision 1.3
diff -u -r1.3 ThreadOnlyFilter.java
--- gnu/classpath/jdwp/event/filters/ThreadOnlyFilter.java	9 Mar 2006 19:49:59 -0000	1.3
+++ gnu/classpath/jdwp/event/filters/ThreadOnlyFilter.java	9 Jun 2006 14:00:55 -0000
@@ -88,7 +88,7 @@
    */
   public boolean matches (Event event)
   {
-    Object thread = event.getParameter (ThreadId.class);
+    Object thread = event.getParameter (Event.EVENT_THREAD);
     if (thread != null)
       {
 	Thread eventThread = (Thread) thread;
Index: gnu/classpath/jdwp/event/ExceptionEvent.java
===================================================================
RCS file: gnu/classpath/jdwp/event/ExceptionEvent.java
diff -N gnu/classpath/jdwp/event/ExceptionEvent.java
--- /dev/null	1 Jan 1970 00:00:00 -0000
+++ gnu/classpath/jdwp/event/ExceptionEvent.java	1 Jan 1970 00:00:00 -0000
@@ -0,0 +1,141 @@
+/* ExceptionEvent.java -- an event specifying an exception has been thrown
+ Copyright (C) 2006 Free Software Foundation, Inc.
+
+ This file is part of GNU Classpath.
+
+ GNU Classpath is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2, or (at your option)
+ any later version.
+
+ GNU Classpath 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 for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with GNU Classpath; see the file COPYING.  If not, write to the
+ Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+ 02110-1301 USA.
+
+ Linking this library statically or dynamically with other modules is
+ making a combined work based on this library.  Thus, the terms and
+ conditions of the GNU General Public License cover the whole
+ combination.
+
+ As a special exception, the copyright holders of this library give you
+ permission to link this library with independent modules to produce an
+ executable, regardless of the license terms of these independent
+ modules, and to copy and distribute the resulting executable under
+ terms of your choice, provided that you also meet, for each linked
+ independent module, the terms and conditions of the license of that
+ module.  An independent module is a module which is not derived from
+ or based on this library.  If you modify this library, you may extend
+ this exception to your version of the library, but you are not
+ obligated to do so.  If you do not wish to do so, delete this
+ exception statement from your version. */
+
+
+package gnu.classpath.jdwp.event;
+
+import java.io.DataOutputStream;
+import java.io.IOException;
+
+import gnu.classpath.jdwp.JdwpConstants;
+import gnu.classpath.jdwp.VMIdManager;
+import gnu.classpath.jdwp.id.ThreadId;
+import gnu.classpath.jdwp.util.Location;
+import gnu.classpath.jdwp.id.ObjectId;
+
+/**
+ * Notification from the VM that an exception has occurred along with where it
+ * occurred, and if and where it was caught.
+ * 
+ * @author Kyle Galloway ([EMAIL PROTECTED])
+ */
+public class ExceptionEvent
+    extends Event
+{
+  //object instance
+  private Object _instance;
+  
+  // the exception thrown
+  private Throwable _exception;
+
+  // the thread in which the exception occurred
+  private Thread _thread;
+
+  // the location where the exception was thrown
+  private Location _location;
+  
+  //the location where the exception was caught
+  private Location _catchLocation;
+
+  /**
+   * Constructs a new <code>ExceptionEvent</code> where the exception was
+   * caught.
+   * 
+   * @param exception the throwable object that generated the event
+   * @param thread the thread where the exception occurred
+   * @param location the location where the exception was thrown
+   * @param catchLocation the location where the exception was caught
+   */
+  public ExceptionEvent(Throwable exception, Thread thread, Location location,
+                        Location catchLocation, Object instance)
+  {
+    super(JdwpConstants.EventKind.EXCEPTION);
+    _exception = exception;
+    _thread = thread;
+    _location = location;
+    _catchLocation = catchLocation;
+    _instance = instance;
+  }
+
+  /**
+   * Returns a specific filtering parameter for this event. Valid types are
+   * thread, location, and catchLocation.
+   * 
+   * @param type the type of parameter desired
+   * @returns the desired parameter or null
+   */
+  public Object getParameter(int type)
+  {
+    if (type == EVENT_THREAD)
+      return _thread;
+    else if (type == EVENT_LOCATION)
+      return _location;
+    else if (type == EVENT_INSTANCE)
+      return _instance;
+    else if (type == EVENT_CLASS)
+      return _instance.getClass();
+    else if (type == EVENT_EXCEPTION_CLASS)
+      return _exception.getClass();
+    else if (type == EVENT_EXCEPTION_CAUGHT)
+      if (_catchLocation != null)
+        return new Boolean(true);
+      else
+        return new Boolean(false);
+
+    return null;
+  }
+
+  /**
+   * Writes the event to the given stream
+   * 
+   * @param outStream the output stream to write the event to
+   */
+  protected void _writeData(DataOutputStream outStream) throws IOException
+  {
+    VMIdManager idm = VMIdManager.getDefault();
+    ThreadId tid = (ThreadId) idm.getObjectId(_thread);
+    ObjectId oid = idm.getObjectId(_exception);
+
+    tid.write(outStream);
+    _location.write(outStream);
+    oid.writeTagged(outStream);
+    if(_catchLocation != null)
+      _catchLocation.write(outStream);
+    else
+      outStream.write(0);
+  }
+}

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