com.google.gwt.core.client
Class JavaScriptException

java.lang.Object
  java.lang.Throwable
      java.lang.Exception
          java.lang.RuntimeException
              com.google.gwt.core.client.JavaScriptException

All Implemented Interfaces:

java.io.Serializable

public final class JavaScriptException
extends java.lang.RuntimeException

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 Throwable.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, Throwable.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

JavaScriptException

public JavaScriptException(java.lang.Object e)

Parameters:

e - the object caught in JavaScript that triggered the exception

JavaScriptException

public JavaScriptException(java.lang.String name,
                           java.lang.String description)

JavaScriptException

protected JavaScriptException(java.lang.String message)

Used for server-side instantiation during JUnit runs. Exceptions are manually marshaled through com.google.gwt.junit.client.impl.ExceptionWrapper objects.

Parameters:

message - the detail message

getDescription

public java.lang.String getDescription()

Returns the original JavaScript message of the exception; may be null.

getException

public JavaScriptObject getException()

Returns the original JavaScript the exception; may be null.

getMessage

public java.lang.String getMessage()

Overrides:

getMessage in class java.lang.Throwable

getName

public java.lang.String getName()

Returns the original JavaScript type name of the exception; may be null.