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I am having a weird problem with an RPG program calling a Java program.
When I call the Java program from the RPG, I get an error that was
traditionally thrown when the Java program was compiled using a newer
JDK than the JRE running the program. this exception is:
Cause . . . . . : RPG procedure CRD002RTST in program
MSILVERS/CRD002RTST
received Java exception "java.lang.NoSuchMethodError: append
(Ljava/lang/StringBuffer;)Ljava/lang/StringBuffer;" when calling
method
"<init>" with signature "()V" in class "com.shipley.ssl.CRD001J".
I compiled the Java program on the System i using the JDK 1.4.2. I
added a line in the program to run the command JAVA *VERSION to
determine the JVM while the program is running -- it is using 1.4.2.
Now for the strange part -- if I run the Java program from the command
line using RUNJVA, the program runs with no problem. The only time I
have a problem is when I run the program from an RPG program.
I have stripped out everything in the RPG program to include only the
bare minimums. My code is as follows:
* Define object
D crd001j S O Class(*JAVA:
D 'com.shipley.ssl.CRD001J')
* Define the Constructors
D constr_crd001j PR O ExtProc(*JAVA:
D 'com.shipley.ssl.CRD001J':
D *CONSTRUCTOR)
*
D string PR O ExtProc(*JAVA:
D 'java.lang.String':
D *CONSTRUCTOR)
D value 100A CONST VARYING
*
* string array for main class call.....
*
D args S O Class(*JAVA:'java.lang.String')
D *CONSTRUCTOR)
*
D string PR O ExtProc(*JAVA:
D 'java.lang.String':
D *CONSTRUCTOR)
D value 100A CONST VARYING
*
* string array for main class call.....
*
D args S O Class(*JAVA:'java.lang.String')
D DIM(2)
*
* Define the main method - passing in one parameter
D main PR ExtProc(*JAVA:
D 'com.shipley.ssl.CRD001J':
D 'main')
D STATIC
D O Class(*JAVA:'java.lang.String')
D CONST
D DIM(2)
*
* Define the main method - passing in one parameter
D main PR ExtProc(*JAVA:
D 'com.shipley.ssl.CRD001J':
D 'main')
D STATIC
D O Class(*JAVA:'java.lang.String')
D CONST
D DIM(2)
D OPTIONS(*VARSIZE)
*
D setdebug PR ExtProc(*JAVA:
D 'com.shipley.ssl.CRD001J':
D 'setDebug')
D N Value
*
/Free
// change the environment variables before the JVM is created
commandstring =
'CHGCURDIR DIR(' + QUOTE + '/creditssl' + QUOTE + ')';
JCLCommand(commandstring);
commandstring =
'ADDENVVAR ENVVAR(CLASSPATH) VALUE(' + QUOTE +
'.:/creditssl/jt400Native.jar' +
QUOTE + ') REPLACE(*YES)';
JCLCommand(commandstring);
commandstring =
'JAVA *VERSION';
JCLCommand(commandstring);
// constructor.....
crd001j = constr_crd001j;
// set the debug option
setdebug(crd001j:*ON);
// call the main class -- it will print out info in the log....
args(1) = string('Test 1');
args(2) = string('Test 2');
main(args);
/End-free
Any ideas????
=======================================
Mike Silvers, Chief Operating Officer
Hainey Business Systems-Division of Affinigent, Inc
IT Solutions for Business Performance
Cell: (717) 324-5508
Phone: (717) 600-0033 ext 106
Fax: (877) 804-9589
http://www.affinigent.com <http://www.affinigent.com/>
http://www.hbs-inc.com <http://www.hbs-inc.com/>
AIM: IBMJavaMan
Skype: hbs_mike_silvers
=======================================
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