Java flow updated with new attributes

java/jpwr/jop/src/Flow.java

@@ -119,6 +119,7 @@ public class Flow {
     public static final int eSave_NodeClass_nc_name		= 300;
     public static final int eSave_NodeClass_a		        = 301;
     public static final int eSave_NodeClass_group		= 302;
+    public static final int eSave_NodeClass_no_con_obstacle    	= 303;
     public static final int eSave_ConClass_cc_name		= 400;
     public static final int eSave_ConClass_con_type		= 401;
     public static final int eSave_ConClass_corner		= 402;
@@ -166,6 +167,7 @@ public class Flow {
     public static final int eSave_Node_obst_x_left		= 1014;
     public static final int eSave_Node_obst_y_high		= 1015;
     public static final int eSave_Node_obst_y_low		= 1016;
+    public static final int eSave_Node_trace_inverted		= 1017;
     public static final int eSave_Con_x_right		        = 1100;
     public static final int eSave_Con_x_left		        = 1101;
     public static final int eSave_Con_y_high		        = 1102;

java/jpwr/jop/src/FlowFrame.java

@@ -319,10 +319,12 @@ public class FlowFrame extends JFrame implements JopUtilityIfc {
   }  
 
   public void closeFlow() {
+    if ( ctx != null) {
       for ( int i = 0; i < ctx.cmn.a.size(); i++) {
         Object o = ctx.cmn.a.get(i);
         engine.remove( o);
       }
+    }
     session.removeUtility( this);
   }
 

java/jpwr/jop/src/FlowNode.java

@@ -182,6 +182,7 @@ public class FlowNode extends JComponent implements FlowComponent, JopDynamic {
 	case Flow.eSave_Node_obst_x_left:
 	case Flow.eSave_Node_obst_y_high:
 	case Flow.eSave_Node_obst_y_low:
+	case Flow.eSave_Node_trace_inverted:
 	  break;
 	case Flow.eSave_End:
 	  end = true;

java/jpwr/jop/src/FlowNodeClass.java

@@ -57,6 +57,8 @@ public class FlowNodeClass {
 	case Flow.eSave_NodeClass_group:
 	  group  = new Integer(token.nextToken()).intValue();
 	  break;
+	case Flow.eSave_NodeClass_no_con_obstacle:
+	  break;
 	case Flow.eSave_End:
 	  end = true;
 	  break;