RE: RPGLE call Java throws MCH74A5

Thanks, I'll check it out.

-----Original Message-----
From: D*B [mailto:dieter.bender@xxxxxxxxxxxx]
Sent: Tuesday, December 01, 2015 9:25 AM
To: RPG programming on the IBM i / System i <rpg400-l@xxxxxxxxxxxx>
Subject: RE: RPGLE call Java throws MCH74A5

<justin>
OVRDBF FILE(QPRINT) TOFILE(QTEMP/JAVAOUTPUT) OVRSCOPE(*JOB) RUNJVA CLASS(org.tmatesoft.svn.cli.SVN) PARM(checkout 'http://<svn server
here>/' '<local file path here>' '--username' <userName> '--password'
<password>)
DLTOVR FILE(QPRINT) LVL(*JOB)

The OVRDBF is mandatory because the Java outputs data that I must have.
There are several different parameter sets, but the class itself remains the same. I'll send the JARS off list.
</justin>

ovrdbf to redirect stdout (System.out) isn't threadsafe and won't work for a prestarted JVM in a multithreaded environment (as AppServer4RPG is providing). But it's anyway possible to keep the JVM alive, thow the SVN class tries to throw the JVM out by System.exit(). You could try the
following: (out of my head)

- write an ExitPreventer:

import java.security.AccessControlException;

class ExitPreventer extends SecurityManager {

public void checkExit(int status)
{
super.checkExit(status);
throw new AccessControlException("System.exit() not allowed");
}
}

- wrap SVN in a class of your own and activate ExitPreventer

public class MySVNCLI {
static{
System.setSecurityManager(new ExitPreventer());
}
public static void main(String[] args) {
org.tmatesoft.svn.cli.SVN.main(args);
}

}

- now you have to call your wrapper (with same parms etc) instead of SVN)

The first call would be as slow as RUNJVA SVN, but subsequent calls in the same job should be faster.

But it would be better,faster and more clean to use SVNUpdateClient() in a Java Programm or something similar; there are Java examples out and it should be rather easy to fit one of these examples in AppServer4RPG, implementing an SVNHandler.

Dieter