java alternatives (official sun jre)

alternatives-jre16u30.sh

alternatives --install /usr/bin/java java /usr/java/jre1.6.0_31/bin/java 2 \
  --slave /usr/bin/keytool keytool /usr/java/jre1.6.0_31/bin/keytool \
  --slave /usr/bin/orbd orbd /usr/java/jre1.6.0_31/bin/orbd \
  --slave /usr/bin/pack200 pack200 /usr/java/jre1.6.0_31/bin/pack200 \
  --slave /usr/bin/rmid rmid /usr/java/jre1.6.0_31/bin/rmid \
  --slave /usr/bin/rmiregistry rmiregistry /usr/java/jre1.6.0_31/bin/rmiregistry \
  --slave /usr/bin/servertool servertool /usr/java/jre1.6.0_31/bin/servertool \
  --slave /usr/bin/tnameserv tnameserv /usr/java/jre1.6.0_31/bin/tnameserv \
  --slave /usr/bin/unpack200 unpack200 /usr/java/jre1.6.0_31/bin/unpack200 \
  --slave /usr/lib/jvm/jre jre /usr/java/jre1.6.0_31 \
  --slave /usr/share/man/man1/java.1 java.1 /usr/java/jre1.6.0_31/man/man1/java.1 \
  --slave /usr/share/man/man1/keytool.1 keytool.1 /usr/java/jre1.6.0_31/man/man1/keytool.1 \
  --slave /usr/share/man/man1/orbd.1 orbd.1 /usr/java/jre1.6.0_31/man/man1/orbd.1 \
  --slave /usr/share/man/man1/pack200.1 pack200.1 /usr/java/jre1.6.0_31/man/man1/pack200.1 \
  --slave /usr/share/man/man1/rmid.1 rmid.1 /usr/java/jre1.6.0_31/man/man1/rmid.1 \
  --slave /usr/share/man/man1/rmiregistry.1 rmiregistry.1 /usr/java/jre1.6.0_31/man/man1/rmiregistry.1 \
  --slave /usr/share/man/man1/servertool.1 servertool.1 /usr/java/jre1.6.0_31/man/man1/servertool.1 \
  --slave /usr/share/man/man1/tnameserv.1 tnameserv.1 /usr/java/jre1.6.0_31/man/man1/tnameserv.1 \
  --slave /usr/share/man/man1/unpack200.1 unpack200.1 /usr/java/jre1.6.0_31/man/man1/unpack200.1