DSXchange

I'm having an issue getting the Java Transformer Stage to work. At this point, I'm just using the sample UpperCase class and am able to run it successfully in a server job.

When running a parallel job with a Java Transformer, the following error is returned and the job is aborted:
Java_Transformer_10,0: Error: TJClient::initialize: unable to create Java Virtual Machine; classpath = E:/IBM/InformationServer/Server/DSEngine/java/lib/tr4j.jar

I have tried 2 solutions found in the 8.0.1 release notes which involve setting DSHOME and DATASTAGE_JRE, or setting DATASTAGE_JVM in addition. I have also created a symbolic link from DSHOME/java/jre to the ASBNode jre folder which fixed some errors.

Anyone have experience getting Java Transformer to work on Windows?

Any help would be appreciated. -Stephen

Your User's classpath under the Geneal tab of java_transformer stage is incorrect. Your classpath is pointing to tr4j.jar that wouldn't do you any good.

Got it working but the problem was quite odd. At one point I had tr4j.jar as my classpath within the Java Transformer, but I had since changed it and it was not referenced anywhere I could see. However, when I deleted the Transformer Stage and added a new one... no more error :D I guess there was metadata hiding behind the stage.

Anyways, thanks for pointing me at the classpath as that was where I found the problem.

-Stephen

Stephen,
Tr4j.jar should be in your machine's system variable, classpath. Your java
transformer's User's Classpath should point to your ASBNode's jre\bin directory.

In that case, where should the classpath for the new compiled java code go? Is there a specific folder to put that into?

For Windows platform, you put your .class in C:\IBM\InformationServer\ASBNode\apps\jre\bin.

On your java_transformer stage's User's Classpath, the above directory should be populated in there and the name of the .class should be populated in the Transformer Class Name.