JCL Examples

In the examples that follow, the JCL members are located in the data set USSUTIL.JCL.

USSUTIL.JCL(TOMCAT01)

//[-----JOBCARD-----]

//*

//JZVMLIB  JCLLIB ORDER=USSUTIL.JCL

//TOMCAT01 EXEC PROC=JZVM01,VERSION='60',

// JAVACLS='org.apache.catalina.startup.Bootstrap',

// ARGS='start',LEPARM='TERMTHDACT(UADUMP)'

//STDENV   DD DISP=SHR,DSN=CHEPO03.USSUTIL.JCL(PARM01)

Be sure to include a job card.
Change “USSUTIL.JCL” to the name of the data set where these JCL items are located.
“60” is the number that corresponds to your Java program version.

In this example, we use Java 6.0; execute the program JVMLDM60 to load the Apache Tomcat server.

USSUTIL.JCL(JZVM01)

//JZVM01   PROC JAVACLS=,  < Fully Qfied Java class..RQD

//   ARGS=,                < Args to Java class

//   VERSION='60',         < Version of JZOSVM module

//   LOGLVL='+I',          < Debug LVL: +I(info) +T(trc)

//   REGSIZE='0M',         < EXECUTION REGION SIZE

//   LEPARM=''

//JAVAJVM  EXEC PGM=JVMLDM&VERSION,REGION=&REGSIZE,

//   PARM='&LEPARM/&LOGLVL &JAVACLS &ARGS'

//SYSPRINT DD SYSOUT=*     < System stdout

//SYSOUT   DD SYSOUT=*     < System stderr

//STDMSG   DD SYSOUT=*     < Rerouted stderr

//STDOUT   DD SYSOUT=*     < Java System.out

//STDERR   DD SYSOUT=*     < Java System.err

//CEEDUMP  DD SYSOUT=*

//SYSUDUMP DD SYSOUT=4

//ABNLIGNR DD DUMMY

//CADVSTOP DD DUMMY        < Turn off CA-SYMDUMP processing

// PEND

USSUTIL.JCL(PARM01BK)

# This is a shell script which configures

# any environment variables for the Java JVM.

# Variables must be exported to be seen by the launcher.

export JAVA_HOME=/sys/java31bt/v6r0m1/usr/lpp/java/J6.0.1

TOMCAT_HOME=/CA_OM_Web_Viewer/apache-tomcat-7.0.42

LIBPATH=/lib:/usr/lib:"${JAVA_HOME}"/bin

LIBPATH="$LIBPATH":"${JAVA_HOME}"/bin/classic

LIBPATH="$LIBPATH":"${TOMCAT_HOME}"/lib

export LIBPATH="$LIBPATH":

CLASSPATH="${JAVA_HOME}/lib/tools.jar"

CLASSPATH="$CLASSPATH":"${JAVA_HOME}/lib/security.jar"

CLASSPATH="$CLASSPATH":"${TOMCAT_HOME}/bin/bootstrap.jar"

CLASSPATH="$CLASSPATH":"${TOMCAT_HOME}"/lib

export CLASSPATH="$CLASSPATH":

# Configure JVM options

IJO="-Xms256m -Xmx1024m"

IJO="$IJO -Dibm.serversocket.recover=true"

IJO="$IJO -Dsun.lang.ClassLoader.allowArraySyntax=true"

IJO="$IJO -Dfile.encoding=ISO8859-1"

IJO="$IJO -Dcatalina.base=${TOMCAT_HOME}"

IJO="$IJO -Dcatalina.home=${TOMCAT_HOME}"

IJO="$IJO -Djava.io.tmpdir=${TOMCAT_HOME}/temp"

IJO="$IJO -Dactivate.saf.manager=false"

export IBM_JAVA_OPTIONS="$IJO "

export JAVA_DUMP_HEAP=false

export JAVA_PROPAGATE=NO

export IBM_JAVA_ZOS_TDUMP=NO

Be aware of the following:

Modify “/sys/java31bt/v6r0m1/usr/lpp/java/J6.0.1” to point to the directory where your JZOS is installed.
“CA_OM_Web_Viewer/apache-tomcat-7.0.42” is the directory where the Apache Tomcat server is installed.
“1024m” is the maximum memory usage that is allowed for the Apache Tomcat server.