Description of problem: When the startup script attempts to autodetect
a jvm when none is supplied it uses IBM jvm even if BEA is set in
/etc/alternatives.  The problem lies in the lines

# Find our JVM.
if [ ! -x "$JAVACMD" -a -r /usr/share/java-utils/java-functions ]; then
  . /usr/share/java-utils/java-functions
  set_javacmd
fi

# Set JVM if -vm wasn't given.
if ! echo $@ | grep '\-vm ' >/dev/null 2>&1 && [ -n "$JAVACMD" ]; then
  ECLIPSE_OPTS="$ECLIPSE_OPTS -vm $JAVACMD"
fi