com.google.gwt.core.client

Class JavaScriptException

java.lang.Object

com.google.gwt.core.client.JavaScriptException

public static class JavaScriptException
extends Object

Any JavaScript exceptions occurring within JSNI methods are wrapped as this class when caught in Java code. The wrapping does not occur until the exception passes out of JSNI into Java. Before that, the thrown object remains a native JavaScript exception object, and can be caught in JSNI as normal.

The return value of #getStackTrace() may vary between browsers due to variations in the underlying error-reporting capabilities. When possible, the stack trace will be the stack trace of the underlying error object. If it is not possible to accurately report a stack trace, a zero-length array will be returned. In those cases where the underlying stack trace cannot be determined, #fillInStackTrace() can be called in the associated catch block to create a stack trace corresponding to the location where the JavaScriptException object was created.

 try {
   nativeMethod();
 } catch (JavaScriptException e) {
   if (e.getStackTrace().length == 0) {
     e.fillInStackTrace();
   }
 }
 

See Also:

Serialized Form

Method Summary

Methods inherited from class java.lang.Object

equals, finalize, getClass, hashCode, toString