Reload a Class in a jar file

[kthegeek]

Hi ,

Without the restarting the JBoss server , how can we reload a class file in a jar file ?

The jar is a deployable component .There are other wars and jars which are depending on this jar file .

We have an issue and want to fix it and reload that class file alone

We are using jboss 4.0.5 .

Thanks,

Karthik

[peterj]

That cannot be done. If the class is an EJB, or is only referenbced by EJBs, you could redeploy the entire JAR (assuming EJBs and the class in question are in the same JAR) and the EJBs should redeploy along with the new class. If the class is a simple class (not an EJB), or is in a library JAR, then you will have to restart.

[kthegeek]

Hi Peter ,

The class is in EJB Jar .i used the redeploy option in the Main Deployer [Jmx console] and reployed the EJB jar

Then i reloaded all the war files which refers to the classes in th EJB jar.The changes made in the class is reflected

But i get an error in other places

java.lang.ClassCastException

at com.sun.corba.se.impl.javax.rmi.PortableRemoteObject.narrow(PortableRemoteObject.java:229)

at javax.rmi.PortableRemoteObject.narrow(PortableRemoteObject.java:137)

at org.apache.jsp.index_jsp._jspService(org.apache.jsp.index_jsp:57)

at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:97)