HELP: Method Invocation

[rjuyal]

Hi All,

i am using

method.invoke method to invoke some methods

For Eg:
if ( i == 1 )
// get the method fun1 ( ... ) in method
method.invoke ( this, args... );
if ( i == 2 )
// get the method fun2 ( ... ) in method
method.invoke ( this, diffArgs... );


everything is working fine. It is calling the function , now i am throwing an user created Exception ( HMSException ) from the method fun1 ( ... ).

but when i but a try catch block in

try{
method.invoke ( this, args... );
}catch ( HMSException e ) {
print ( "Never got Caught" );
}

i am unable to catch the exception.


try{
method.invoke ( this, args... );
}catch ( Exception e ) {
print ( "Now it catches the correct Exception means same message." );
}

It works fine now, but the game is i want to catch the Exception which i haev thrown not the JAVA Exception...

[new_2_java]

Make sure your HMSException is extending Exception.

[rjuyal]

thanks for the reply.

I have already extended the Exception class, but still it is of no use.

it is like, i am using

try{
method.invoke ( ); // method points to my method which throws HMSException
}catch ( Exception e ) { } // works fine


try{
method.invoke ( ); // method points to my method which throws HMSException
}catch ( HMSException e ) { } // doesn' works


Thanks in advance

[spikey]

Your HMSException is not a checked exception on Method.invoke so you will be unable to catch it.

If the invoking method (fun1) throws an exception, invoke with catch this and will in turn throw a InvocationTargetException with your HMSException as the cause.

Hope that helps?

[rjuyal]

OMG! sounds good, let me try this. :rolleyes:

Thanks Spikey