Words of wisdom — tips, tricks, suggestions, and pitfalls

• Installation paths: Long installation paths can cause the installer to fail. If this happens, check the log.txt file in the temp directory. You can also have path length problems later on when applications are installed or updated. Long path lengths do not always show up directly as errors; what you will see is an error message about path or file not found, or a class not found when the class is in a long-named package.

• Eclipse.ini settings: In WID_HOME/eclipse.ini, Xmx will set the max JVM heapsize while Xms is the minimum heapsize. We recommend that you to set the following (say on a machine with 3GB Memory):

  • -Xms512m

  • -Xmx1024m

• Open %WID_INSTALL_PATH%\eclipse.ini in notepad and make the changes highlighted as shown next:

  -vm
  C:\IBM\WID62\jdk\jre\bin\javaw.exe
  -vmargs
  -Xquickstart
  -Xms512m
  -Xss2048k
  -Xmaxf0.1
  -Xminf0.05
  -Xmx1024m
  -Xgcpolicy:gencon
  -Xscmx96m
  -Xshareclasses:singleJVM,keep,nonfatal
  -Xnolinenumbers
  -XX:MaxPermSize=512M
  ...