Hi,

I'm developing with GWT (version 1.7.0) and having trouble figuring
out the source of a runtime exception.  My application compiles, runs,
and behaves as expected in hosted mode (on both Windows and Linux).
In browser mode (also on Windows and Linux), I get a runtime
exception:

'com_google_gwt_user_client_rpc_impl_RemoteServiceProxy_s...' is null
or not an object

The generated javascript where the exception occurs is:

function com_google_gwt_user_client_rpc_impl_RemoteServiceProxy_
$createStreamWriter__Lcom_google_gwt_user_client_rpc_impl_RemoteServiceProxy_2
(this$static){
  var clientSerializationStreamWriter;
  clientSerializationStreamWriter =
com_google_gwt_user_client_rpc_impl_ClientSerializationStreamWriter_
$ClientSerializationStreamWriter__Lcom_google_gwt_user_client_rpc_impl_ClientSerializationStreamWriter_2Lcom_google_gwt_user_client_rpc_impl_Serializer_2Ljava_lang_String_2Ljava_lang_String_2
(new
com_google_gwt_user_client_rpc_impl_ClientSerializationStreamWriter(),
this
$static.com_google_gwt_user_client_rpc_impl_RemoteServiceProxy_serializer,
this
$static.com_google_gwt_user_client_rpc_impl_RemoteServiceProxy_moduleBaseURL,
this
$static.com_google_gwt_user_client_rpc_impl_RemoteServiceProxy_serializationPolicyName);
 
clientSerializationStreamWriter.com_google_gwt_user_client_rpc_impl_AbstractSerializationStreamWriter_objectCount
= 0;
  java_util_AbstractHashMap_$clearImpl__Ljava_util_AbstractHashMap_2
(clientSerializationStreamWriter.com_google_gwt_user_client_rpc_impl_AbstractSerializationStreamWriter_objectMap);
 
clientSerializationStreamWriter.com_google_gwt_user_client_rpc_impl_AbstractSerializationStreamWriter_stringMap.clear__
();
  java_util_ArrayList_$clear__Ljava_util_ArrayList_2
(clientSerializationStreamWriter.com_google_gwt_user_client_rpc_impl_AbstractSerializationStreamWriter_stringTable);
 
clientSerializationStreamWriter.com_google_gwt_user_client_rpc_impl_ClientSerializationStreamWriter_encodeBuffer
= java_lang_StringBuffer_$StringBuffer__Ljava_lang_StringBuffer_2(new
java_lang_StringBuffer());
 
com_google_gwt_user_client_rpc_impl_AbstractSerializationStreamWriter_
$writeString__Lcom_google_gwt_user_client_rpc_impl_AbstractSerializationStreamWriter_2Ljava_lang_String_2
(clientSerializationStreamWriter,
clientSerializationStreamWriter.com_google_gwt_user_client_rpc_impl_ClientSerializationStreamWriter_moduleBaseURL);
 
com_google_gwt_user_client_rpc_impl_AbstractSerializationStreamWriter_
$writeString__Lcom_google_gwt_user_client_rpc_impl_AbstractSerializationStreamWriter_2Ljava_lang_String_2
(clientSerializationStreamWriter,
clientSerializationStreamWriter.com_google_gwt_user_client_rpc_impl_ClientSerializationStreamWriter_serializationPolicyStrongName);
  return clientSerializationStreamWriter;
}

The browser's script debugger reports that "this$static" is null, but
I don't know what could be causing this.

Can anyone give suggestions here?

Thank you,
Jennifer

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