JRubyOnHPUX11_23

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Using JRuby on HPUX

This document describes a workaround to get JRUBY working on HPUX as untaring jruby-bin-1.0.tar yields the following error in addition to missing jar files in $JRUBY_HOME/lib

Workaround:

This document was authored by a newbie. There might be better ways to make JRUBY work on HPUX. (Don't know how to test or check if all jruby functions, features are working with this workaround, atleast my scripts seems to work):

• tar xvf jruby-bin-1.0.tar (ignore the @LongLink errors)
• copy the following jars to JRUBY_HOME/lib directory (I had a copy of these jar files on a linux box where the untar worked successfully)

    asm-2.2.3.jar
    asm-commons-2.2.3.jar
    backport-util-concurrent.jar
    bsf.jar
    emma.jar
    emma_ant.jar
    jarjar-0.7.jar
    jline-0.9.91.jar
    jruby.jar
    junit.jar

• Modified $JRUBY_HOME/bin/jruby bash file to the following: (had to do this as I don't have bash on my HP box and don't know how to convert a bash script into ksh or some other shell script)

  JRUBY_HOME="<<jruby_home>>" #Substitute your jruby_home
  JRUBY_OPTS=""
  JAVA_CMD='java'
  JRUBY_SHELL=/bin/sh
  CP="$JRUBY_HOME/lib/asm-2.2.3.jar:              \
  $JRUBY_HOME/lib/asm-commons-2.2.3.jar:          \
  $JRUBY_HOME/lib/backport-util-concurrent.jar:   \
  $JRUBY_HOME/lib/bsf.jar:                        \
  $JRUBY_HOME/lib/emma.jar:                       \
  $JRUBY_HOME/lib/emma_ant.jar:                   \
  $JRUBY_HOME/lib/jarjar-0.7.jar:                 \
  $JRUBY_HOME/lib/jline-0.9.91.jar:               \
  $JRUBY_HOME/lib/jruby.jar:                      \
  $JRUBY_HOME/lib/junit.jar"
  JRUBY_BASE="$JRUBY_HOME"
  JAVA_MEM=-Xmx256m
  JAVA_STACK=-Xss1024k
  JAVA_OPTS="$JAVA_MEM $JAVA_STACK -Xverify:none -da"
  exec "$JAVA_CMD" $JAVA_OPTS -classpath "$CP"    \
    "-Djruby.base=$JRUBY_BASE" "-Djruby.home=$JRUBY_HOME" \
    "-Djruby.lib=$JRUBY_BASE/lib" -Djruby.script=jruby    \
    "-Djruby.shell=$JRUBY_SHELL"                          \
    org.jruby.Main $JRUBY_OPTS "$@"

• Setup your environment variables

   export JAVA_HOME="<<java_home>>" #Substitute your java_home
   export JRUBY_HOME="<<jruby_home>>" #Substitute your jruby_home
   export PATH=$PATH:$JRUBY_HOME/bin:$JAVA_HOME/bin:.

• Test JRUBY

   jruby -e '  puts "jruby is working"   '

Alternative approach

Before going through all of the work above, you may want to try downloading and building GNU tar. I used GNU tar to unpack the JRuby tar and everything worked great. No errors.