IBM SC33-1683-02 User Manual
Page 636
CICS_PROGRAM
Contains the name of the CICS program (1-8 characters) associated with the
Java class to be run. No value is set in SDFHENV. This name is established at
run-time; it is returned to DFHJVMAT for information only, any changes will be
ignored by CICS.
CICS_PROGRAM_CLASS
Specifies the CICS user class name. This is the equivalent of the JVMCLASS
attribute on the CICS PROGRAM resource definition. No value is set in
SDFHENV.
CLASSPATH
Sets the directory path to be searched by the JVM for .class files. The default
shipped in SDFHENV includes dfjcics.jar and dfjwrap.jar (required to support
JCICS).
DEBUGPORT
Sets a TCP/IP port number to be used by the JVM in debugging mode. This
variable is not set in SDFHENV. The default is to allow the JVM to choose a
port number.
DISABLEASYNCGC
Indicates whether asynchronous garbage collection should be disabled. This
variable is set to NO in SDFHENV (asynchronous garbage collection should be
performed).
ENABLECLASSGC
Indicates whether the JVM should perform garbage collection on loaded classes
that are not being used. This variable is set to YES in SDFHENV.
ENABLEVERBOSEGC
Indicates whether the JVM should issue a message when the garbage collector
frees memory. This variable is set to NO in SDFHENV.
INVOKE_DFHJVMAT
Specifies whether the user replaceable module DFHJVMAT should be invoked
before executing the JVM. This variable is set to NO in SDFHENV.
JAVASTACKSIZE
Sets the size of each thread’s Java code stack, in bytes. A default value of
409600 bytes (400K) is set in SDFHENV. This is the recommended default for
the MVS JVM.
JAVA_COMPILER
Specifies whether the Java just-in-time (JIT) compiler should be invoked by the
JVM. This variable is set to OFF in DFHENV.
JAVA_HOME
Defines the installation directory prefix of the JDK.
JVM_DEBUG
Indicates whether the JVM should operate in debugging mode. This is the
equivalent of the JVMDEBUG attribute on the CICS PROGRAM resource
definition. No value is set in SDFHENV.
LIBPATH
Sets the directory path to be searched by the JVM for native C
dll
files. The
default directory path set in SDFHENV includes the path to the native C dll files
required to support JCICS.
the JVM execution options program
604
CICS TS for OS/390: CICS Customization Guide
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