UIMA-5784 include cause of failure when sending an exception back to client
diff --git a/uimaj-as-core/src/main/java/org/apache/uima/aae/delegate/ControllerDelegate.java b/uimaj-as-core/src/main/java/org/apache/uima/aae/delegate/ControllerDelegate.java
index e86433f..b91bc23 100644
--- a/uimaj-as-core/src/main/java/org/apache/uima/aae/delegate/ControllerDelegate.java
+++ b/uimaj-as-core/src/main/java/org/apache/uima/aae/delegate/ControllerDelegate.java
@@ -58,7 +58,7 @@
   }

   public void handleError(Exception e, ErrorContext errorContext) {

     if (controller != null && controller.getErrorHandlerChain() != null) {

-      // Handle Timeout

+    	// Handle Timeout

       controller.getErrorHandlerChain().handle(e, errorContext, controller);

     }

   }

diff --git a/uimaj-as-core/src/main/java/org/apache/uima/aae/delegate/Delegate.java b/uimaj-as-core/src/main/java/org/apache/uima/aae/delegate/Delegate.java
index 3616638..ec99dac 100644
--- a/uimaj-as-core/src/main/java/org/apache/uima/aae/delegate/Delegate.java
+++ b/uimaj-as-core/src/main/java/org/apache/uima/aae/delegate/Delegate.java
@@ -834,7 +834,13 @@
           delegate.setState(TIMEOUT_STATE);

           ErrorContext errorContext = new ErrorContext();

           errorContext.add(AsynchAEMessage.Command, aCommand);

-          String enrichedMessage = enrichProcessCASTimeoutMessage(aCommand, aCasReferenceId,timeToWait,"Delegate Service:"+delegateKey+" Has Timed Out While Processing CAS:"+aCasReferenceId );

+          String msg = "";

+          if ( aCommand == AsynchAEMessage.GetMeta ) {

+        	  msg = "Delegate Service:"+delegateKey+" GetMeta Request Has Timed Out";

+          } else {

+        	  msg = "Delegate Service:"+delegateKey+" Has Timed Out While Processing CAS:"+aCasReferenceId;

+          }

+          String enrichedMessage = enrichProcessCASTimeoutMessage(aCommand, aCasReferenceId,timeToWait, msg);

           Exception cause = new MessageTimeoutException(enrichedMessage);

           if ( aCasReferenceId != null ) {  // true on GetMeta Ping timeout

                 errorContext.add(AsynchAEMessage.CasReference, aCasReferenceId);