JDK 1.4 Dillema

[swatkat]

Hi,

We all have been hearing about the Jdk 1.4 hype lately about how the new java.nio packages work and are quite advantageous over the traditional io packages.

I was wondering how it could provide more advantage if it was incorporated into Jboss. Or would it provide any advantage in terms of performance/speed.

Jboss still is suggested to run on 1.3+ jvms, is there any move towards shifting Jboss to take advantage of jdk 1.4 ?

Is any body listening ?

Cheers

[stupendousman]

There is a bug in the getDeclaringClass method of CtClass when you try and get the declaring class of an anonymous inner class it throws FileNotFoundException. EG:

package examples.javassisttests.declaringclasses;
import javassist.*;
public class Test {
public static void main( final String[] notUsed ) throws NotFoundException {
new Object() {}; // annonymous inner class
final CtClass inner = ClassPool.getDefault().get( "examples.javassisttests.declaringclasses.Test$1" );
System.out.println( "Inner class = " + inner.getName() );
System.out.println( "Outer class (direct) = " + ClassPool.getDefault().get( "examples.javassisttests.declaringclasses.Test" ).getName() );
System.out.println( "Outer class (from inner) = " + inner.getDeclaringClass().getName() );
}
}

Produces:

Inner class = examples.javassisttests.declaringclasses.Test$1
Outer class (direct) = examples.javassisttests.declaringclasses.Test
javassist.NotFoundException
at javassist.ClassPool.get(ClassPool.java:295)
at javassist.CtClassType.getDeclaringClass(CtClassType.java:412)
at examples.javassisttests.declaringclasses.Test.main(Test.java:9)
Exception in thread "main"

[hezekiel]

Been using the 3.0.1 with jdk 1.4 for a month now. No problems so far. As for the advantages you automatically get more faster serialization times with 1.4
IO? you're not supposed to do any IO-ops from your EJBs, but your own JCA connectors might benefit from those.