RE: J9 JVM not compliant?

["Sonin,Nikolai" <nsonin@xxxxxxxxxxx>]

Too bad most 3rd party Java tools do not seem to do this and assume that they are the only thing in your application universe.  We have three vendors needing to run three different versions of Java with three different versions of the same jar files.  Open Source is so wonderful I want to puke.

Nick Sonin

-----Original Message-----
From: James Perkins [mailto:jrperkinsjr@xxxxxxxxx] 
Sent: Friday, September 28, 2012 11:10 AM
To: Java Programming on and around the IBM i
Subject: Re: J9 JVM not compliant?

I tend to prefer listing my dependencies in my MANIFEST.MF anyway. Just add
the Class-Path attribute which with most build tools is pretty easy to have
automatically happen. The ideal part of that is you don't have to set your
CP differently for different environments.

--
James R. Perkins


On Fri, Sep 28, 2012 at 5:57 AM, Sonin,Nikolai <nsonin@xxxxxxxxxxx> wrote:

> Gavin:
>
> Thanks for confirming what support told me and this is indeed a new
> application.  Sometimes it doesn't hurt to call IBM ;-)  The problems with
> IBM's implementation of Java and Environment Variables on the iSeries are
> just bizarre.  For instance, your example below does not work in V5R4M5
> with any of the JVMs, but this works:
> addenvvar QIBM_RPG_JAVA_PROPERTIES
> value('-Djava.endorsed.dirs=/Java')
>
> However, I was able to put: java.endorsed.dirs=/java:/java/lib in the
> systemDefault.properties file in my home directory and it works.  Put in a
> semicolon and it does not.  There are some very different behaviors for
> environment variables and Java properties on the iSeries than any other
> platform I have worked on.  What do I have to look forward to?  I
> appreciate all the advice you can give a new iSeries Java programmer.
>
> Nick Sonin
>
>
>
> -----Original Message-----
> From: Gan Zhang [mailto:zhanggan@xxxxxxxxxx]
> Sent: Thursday, September 27, 2012 11:31 PM
> To: Java Programming on and around the IBM i
> Cc: java400-l-bounces@xxxxxxxxxxxx
> Subject: Re: J9 JVM not compliant?
>
> This is really a limitation for Java on IBM i . It's not only for J9 but
> also for Classic JVM on i. Is your application a new app with Java on i?
> Or it worked someway before you move to J9?
> For RPG calling Java, there is a workaround way to make your application
> work is that you can using a java.endorsed.dirs property to include  the
> folders containing your JARs.
>
> addenvvar QIBM_RPG_JAVA_PROPERTIES
> value('-Djava.endorsed.dirs=/Java;/Java/lib;')
>
> Wish it can work for you.
>
>
> Best regards.
>
> ____________________________________________________________________________________________
>
> Gavin, Zhang Gan
> IBM i J9 Dev, http://www.ibm.com/developerworks/ibmi/techupdates/java
> Email: zhanggan@xxxxxxxxxx
> Phone: +86-10-82452719
> Address: 1/F, 28, ZhongGuanCun Software Park, No.8 Dong Bei Wang West
> Road, Haidian District, Beijing P.R.China 100193
>
>
>
> "Sonin,Nikolai" <nsonin@xxxxxxxxxxx>
> Sent by: java400-l-bounces@xxxxxxxxxxxx
> 09/28/2012 12:13 AM
> Please respond to
> Java Programming on and around the IBM i <java400-l@xxxxxxxxxxxx>
>
>
> To
> <java400-l@xxxxxxxxxxxx>,
> cc
>
> Subject
> J9 JVM not compliant?
>
>
>
>
>
>
> To All:
>
>
>
> I am trying to use the 32 bit J9 JVM that is 1.6 of java on V5R4M5 from
> an ILE RPG program:
>
>
>
> The following code:
>
>
>
> D q               s              1a   inz('''')
>
>  /free
>
>
>
>   Exec_Command('CHGCURDIR  DIR(' + q + '/java/' + q + ')');
>
>
>
>   Exec_Command('ADDENVVAR ENVVAR(CLASSPATH) REPLACE(*YES) ' +
>
>     'VALUE(' +
>
>      q +
>
>      '.:/Java/*.jar:/Java/lib/*.jar:/Java/rpgmail.jar' +
>
>      q +
>
>       ')');
>
>
>
>    Exec_Command('ADDENVVAR ENVVAR(JAVA_HOME) REPLACE(*YES) ' +
>
>    'VALUE('+ q + '/QOpenSys/QIBM/ProdData/JavaVM/jdk60/32bit'
>
>    + q + ')');
>
>    return;
>
>
>
>   /end-free
>
>  P                 e
>
>
>
> Is supposed to set the JAVA_HOME ENVVAR and the CLASSPATH ENVVAR for the
> JVM before using the Java Mail API.
>
> It does this:
>
> CLASSPATH                   '.:/Java/*.jar:/Java/lib/*.jar:/Jav' >
>
>  JAVA_HOME                   '/QOpenSys/QIBM/ProdData/JavaVM/jdk' >
>
>
>
> But this is what I get in the Job Log:
>
>
>
> Message ID . . . . . . :   RNX0301       Severity . . . . . . . :   50
>
>
> Message type . . . . . :   Escape
>
>
> Date sent  . . . . . . :   09/27/12      Time sent  . . . . . . :
> 12:06:09
>
>
>
>
> Message . . . . :   Java exception received when calling Java method.
>
>
> Cause . . . . . :   RPG procedure RPGMAIL_NE in program
> SONINIKO/RPGMAILSV
>
>   received Java exception "java.lang.NoClassDefFoundError:
> javax.mail.Address"
>
>   when calling method "<init>" with signature "()V" in class
>
>
>   "com.mowyourlawn.rpgmail.RPGMail".
>
>
>
>
> According to Oracle in Java 6 specifying the directory or *.jar  in the
> classpath is supposed search all of the jar files in the directory.
> Obviously I am doing something wrong or IBM did not get the message.
>
> What am I doing wrong?
>
> Thanks in advance for your time and effort.
>
>
>
> Nick Sonin
>
>
>
>
>
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