I am getting this error:
java.lang.IllegalArgumentException: invoke arguments: JS value of type
number, expected java.lang.Object
at com.google.gwt.dev.shell.JsValueGlue.get(JsValueGlue.java:178)
at com.google.gwt.dev.shell.MethodDispatch.invoke(MethodDispatch.java:65)
at
com.google.gwt.dev.shell.OophmSessionHandler.invoke(OophmSessionHandler.java:172)
at
com.google.gwt.dev.shell.BrowserChannelServer.reactToMessagesWhileWaitingForReturn(BrowserChannelServer.java:338)
at
com.google.gwt.dev.shell.BrowserChannelServer.invokeJavascript(BrowserChannelServer.java:219)
at
com.google.gwt.dev.shell.ModuleSpaceOOPHM.doInvoke(ModuleSpaceOOPHM.java:136)
at com.google.gwt.dev.shell.ModuleSpace.invokeNative(ModuleSpace.java:571)
at
com.google.gwt.dev.shell.ModuleSpace.invokeNativeObject(ModuleSpace.java:279)
at
com.google.gwt.dev.shell.JavaScriptHost.invokeNativeObject(JavaScriptHost.java:91)
Upon closer examination of the get method of JsValueGlue which looks
something like this:
public static <T> T get(JsValue value, CompilingClassLoader cl, Class<T>
type, String msgPrefix) {
if (type.isPrimitive()) {
//ommitted for brevity
}
if (value.isNull() || value.isUndefined()) {
return null;
}
if (value.isWrappedJavaObject()) {
return type.cast(value.getWrappedJavaObject());
}
if (value.isString()) {
return type.cast(value.getString());
}
if (value.isJavaScriptObject()) {
return type.cast(createJavaScriptObject(value, cl));
}
// Just don't know what do to with this.
/*
* TODO (amitmanjhi): does throwing a HostedModeException here and
catching
* a RuntimeException in user test
* com.google.gwt.dev.jjs.test.HostedTest::testObjectReturns() make
sense
*/
throw new IllegalArgumentException(msgPrefix + ": JS value of type "
+ value.getTypeString() + ", expected "
+ TypeInfo.getSourceRepresentation(type));
}
I saw that there is no check when the value is a number. Not sure if it is
a bug in JsValueGlue.get or there is a reason number is excluded. I believe
the code misses something like:
if (value.isNumber()) {
return type.cast(value.getNumber());
}
If this is a bug I'd be willing to create an issue and probably a patch if
the whole procedure isn't too complicated.
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