The 'user.home' property is set to the JSM instance system directory. The SystemDefault.properties file located in the JSM instance system directory can be used to set Java system properties.

i5/OS and the JVM determine the values for Java system properties by using the following order of precedence:

  • Command line

  • QIBM_JAVA_PROPERTIES_FILE environment variable

  • user.home SystemDefault.properties file

  • /QIBM/UserData/Java400/SystemDefault.properties

  • Default system property values.

If the first line of the SystemDefault.properties file starts with #AllowOptions, then JVM options and System properties can be used.

   #AllowOptions
   #
   #!<studio-project id="20000000-000000" name="lansa">
   # ....
   #!</studio-project>
   #
   #!<studio-project id="20080101-000000" name="CustomChanges">
   #
   # JVM options
   #
   -verbose:sizes
   -Xgcpolicy:gencon
   # -Xcompactexplicitgc
   # -Xtgc:excessiveGC,compaction
   # -Xverbosegclog:GC-%Y-%m-%d-%H%M%S.XML
   # -Xcompressedrefs
   #
   # System properties
   #
   user.timezone=GMT+10:00
   os400.dir.create.auth=none
   os400.file.create.auth=none
   os400.file.encoding.ccsid=1208
   com.ibm.tools.attach.enable=no
   #
   #!</studio-project>
   #


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