My application works fine in DevMode but after deployment on appengine, I
get JavascriptException. I have a CellBrowser with 3 levels. What is
strange is that the exception only occurs on some element of the first and
third level. The behavior is correct, meaning that when I select a first
level element, the corresponding elements shows in the second level. I have
a class that implements UncaughtExceptionHandler where I log the stack
trace:
@Override
public void onUncaughtException(Throwable e) {
StringBuffer sb = new StringBuffer();
sb.append("Exception type: " + e.getClass()).append("\n");
sb.append("Message: ").append(e.getMessage()).append("\n");
Window.alert(sb.toString());
if (e instanceof JavaScriptException) {
Window.alert("JSException");
if (e.getStackTrace().length == 0) {
e.fillInStackTrace();
}
sb.append(e.getClass()).append(" - ").append(e.getMessage()).append(
"\n");
for (StackTraceElement stackTrace : e.getStackTrace()) {
sb.append(stackTrace.getClassName()).append(".").append(
stackTrace.getMethodName()).append("(").append(
stackTrace.getFileName()).append(":").append(
stackTrace.getLineNumber()).append(")");
sb.append("\n");
}
Window.alert(sb.toString());
}
When the exception occurs after selecting one element of the CellBrowser,
the log is:
Exception type: class com.google.gwt.core.client.JavaScriptException
Message: (TypeError): Cannot read property 'firstChild' of undefined
class com.google.gwt.core.client.JavaScriptException - (TypeError): Cannot read
property 'firstChild' of undefined
Unknown.com_google_gwt_dom_client_DOMImpl_$getFirstChildElement__Lcom_google_gwt_dom_client_DOMImpl_2Lcom_google_gwt_dom_client_Element_2Lcom_google_gwt_dom_client_Element_2(null:-1)
Unknown.com_google_gwt_user_cellview_client_CellBrowser$BrowserCellList_getCellParent__Lcom_google_gwt_dom_client_Element_2Lcom_google_gwt_dom_client_Element_2(null:-1)
Unknown.com_google_gwt_user_cellview_client_CellList_resetFocusOnCell__Z(null:-1)
Unknown.com_google_gwt_user_cellview_client_AbstractHasData$View$1_execute__V(null:-1)
Unknown.com_google_gwt_core_client_impl_SchedulerImpl_runScheduledTasks__Lcom_google_gwt_core_client_JsArray_2Lcom_google_gwt_core_client_JsArray_2Lcom_google_gwt_core_client_JsArray_2(null:-1)
Unknown.com_google_gwt_core_client_impl_SchedulerImpl_$flushPostEventPumpCommands__Lcom_google_gwt_core_client_impl_SchedulerImpl_2V(null:-1)
Unknown.com_google_gwt_core_client_impl_SchedulerImpl$Flusher_execute__Z(null:-1)
Unknown.com_google_gwt_core_client_impl_SchedulerImpl_execute__Lcom_google_gwt_core_client_Scheduler$RepeatingCommand_2Z(null:-1)
Unknown.com_google_gwt_core_client_impl_Impl_apply__Ljava_lang_Object_2Ljava_lang_Object_2Ljava_lang_Object_2Ljava_lang_Object_2(null:-1)
Unknown.com_google_gwt_core_client_impl_Impl_entry0__Ljava_lang_Object_2Ljava_lang_Object_2Ljava_lang_Object_2Ljava_lang_Object_2(null:-1)
Do you know if it's a problem with my code, or if it's a GWT compiler bug?
I also try to run the compiled version of my app locally but I always get
the message `GWT module may need to be (re)compiled). I don't understand
because in Eclipse click I run the Gwt Compile Project command.
Thanks
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