Fix for bug 132325. Don't hold stale references to MRJ Plug-in Instances in LiveConnect. r=sdagley, sr= beard, a=asa.

plugin/oji/MRJ/plugin/Source/LiveConnectNativeMethods.cpp

@@ -866,7 +866,6 @@ Java_netscape_javascript_JSObject_eval(JNIEnv* env,
 #else
     /* determine the plugin instance so we can obtain its codebase. */
     // beard: should file a bug with Apple that JMJNIToAWTContext doesn't work.
-    // MRJPluginInstance* pluginInstance = theJVMPlugin->getPluginInstance(env);
     MRJPluginInstance* pluginInstance = GetCurrentInstance(env);
 #if 0
     if (pluginInstance == NULL) {
@@ -952,6 +951,11 @@ public:
     {
     }
     
+    ~GetWindowMessage()
+    {
+        NS_RELEASE(mPluginInstance);
+    }
+    
     virtual void execute(JNIEnv* env)
     {
         MRJSecurityContext* securityContext = getSecurityContext(mPluginInstance);