Merge remote-tracking branch 'origin/master'

jme3-networking/src/main/java/com/jme3/network/service/rpc/RpcConnection.java

@@ -225,6 +225,7 @@ public class RpcConnection {
     private class ResponseHolder {
         private Object response;
         private String error;
+        private Throwable exception;
         private RpcCallMessage msg;
         boolean received = false;
  
@@ -235,6 +236,7 @@ public class RpcConnection {
         public synchronized void setResponse( RpcResponseMessage msg ) {
             this.response = msg.getResult();
             this.error = msg.getError();
+            this.exception = msg.getThrowable();
             this.received = true;
             notifyAll();
         }
@@ -250,6 +252,9 @@ public class RpcConnection {
             if( error != null ) {
                 throw new RuntimeException("Error calling remote procedure:" + msg + "\n" + error);
             }
+            if( exception != null ) {
+                throw new RuntimeException("Error calling remote procedure:" + msg, exception);
+            } 
             return response;              
         }
         

jme3-networking/src/main/java/com/jme3/network/service/rpc/msg/RpcResponseMessage.java

@@ -34,6 +34,7 @@ package com.jme3.network.service.rpc.msg;
 
 import com.jme3.network.AbstractMessage;
 import com.jme3.network.serializing.Serializable;
+import com.jme3.network.serializing.Serializer;
 import java.io.PrintWriter;
 import java.io.StringWriter;
 
@@ -50,6 +51,7 @@ public class RpcResponseMessage extends AbstractMessage {
     private long msgId;
     private Object result;
     private String error;
+    private Object exception; // if it was serializable
 
     public RpcResponseMessage() {
     }
@@ -62,12 +64,31 @@ public class RpcResponseMessage extends AbstractMessage {
     public RpcResponseMessage( long msgId, Throwable t ) {
         this.msgId = msgId;
  
+        // See if the exception is serializable
+        if( isSerializable(t) ) {
+            // Can send the exception itself
+            this.exception = t;
+        } else {
+            // We'll compose all of the info into a string           
             StringWriter sOut = new StringWriter();
             PrintWriter out = new PrintWriter(sOut);
             t.printStackTrace(out);
             out.close();
             this.error = sOut.toString();
         }
+    }
+ 
+    public static boolean isSerializable( Throwable error ) {
+        if( error == null ) {
+            return false;
+        }
+        for( Throwable t = error; t != null; t = t.getCause() ) {
+            if( Serializer.getExactSerializerRegistration(t.getClass()) == null ) {
+                return false;
+            }
+        }
+        return true; 
+    }
  
     public long getMessageId() {
         return msgId;
@@ -81,10 +102,15 @@ public class RpcResponseMessage extends AbstractMessage {
         return error;
     }
     
+    public Throwable getThrowable() {
+        return (Throwable)exception;
+    }
+    
     @Override
     public String toString() {
         return getClass().getSimpleName() + "[#" + msgId + ", result=" + result
                                           + (error != null ? ", error=" + error : "")
+                                          + (exception != null ? ", exception=" + exception : "")
                                           + "]";
     }
 }