Check if JAVA is Working on the iSeries

Problem Statement:

How can you check to see if JAVA is working on your iSeries?

When starting applications that uses Java, JAVA must be properly configured on the iSeries. If there is a problem starting these servers for one reason or another, things may not work properly.

Solution:

1. Run one for the following Java commands below for the ShowCase version installed to verify if JAVA is working properly on the iSeries: 

For STRATEGY 6.5x we use java version 1.4
On pre V5R1:  
JAVA CLASS(com.ibm.as400.system.Hello) PROP((java.version '1.4'))
On V5R1, V5R2 and V5R3:    
JAVA CLASS(Hello) CLASSPATH('/qibm/ProdData/Java400') PROP((java.version 1.4))

For ShowCase versions 7.xx we use java version 1.4
On pre V5R1:  
JAVA CLASS(com.ibm.as400.system.Hello) PROP((java.version '1.4'))
On V5R1, V5R2, V5R3 and V5R4:    
JAVA CLASS(Hello) CLASSPATH('/qibm/ProdData/Java400') PROP((java.version 1.4))                            

For ShowCase versions 8.00, 9.0, and 9.1 we use java version 1.5
JAVA CLASS(Hello) CLASSPATH('/qibm/ProdData/Java400') PROP((java.version 1.5))
               

2. After the command has been entered, a screen will appear with "Java Shell Display" at the top, followed by:    

Hello World            
Java program completed

The joblog information should look like the following:

>  java com.ibm.as400.system.Hello                         
Object QP0ZTRML type *DTAQ created in library QTEMP.     
Java program run in job 272497/DEP/QJVACMDSRV completed.
Object QP0ZTRML in QTEMP type *DTAQ deleted.  

3. If the above information does not after running the command, then there is a problem with JAVA on your iSeries.  Contact IBM iSeries Support for assistance.

Ref#: 1475838