Add Sun HotSpot JDK to Java alternatives and set to default.

alternative_hotspot-java.sh

#!/bin/bash
# Default use Sun HotSpot JDK.
alternatives --install /usr/bin/java java /usr/java/default/bin/java 17000 \
--slave /usr/bin/appletviewer appletviewer /usr/java/default/bin/appletviewer \
--slave /usr/bin/apt apt /usr/java/default/bin/apt \
--slave /usr/bin/extcheck extcheck /usr/java/default/bin/extcheck \
--slave /usr/bin/HtmlConverter HtmlConverter /usr/java/default/bin/HtmlConverter \
--slave /usr/bin/idlj idlj /usr/java/default/bin/idlj \
--slave /usr/bin/jar jar /usr/java/default/bin/jar \
--slave /usr/bin/jarsigner jarsigner /usr/java/default/bin/jarsigner \
--slave /usr/bin/javac javac /usr/java/default/bin/javac \
--slave /usr/bin/javadoc javadoc /usr/java/default/bin/javadoc \
--slave /usr/bin/javah javah /usr/java/default/bin/javah \
--slave /usr/bin/javap javap /usr/java/default/bin/javap \
--slave /usr/bin/javaws javaws /usr/java/default/bin/javaws \
--slave /usr/bin/jconsole jconsole /usr/java/default/bin/jconsole \
--slave /usr/bin/jcontrol jcontrol /usr/java/default/bin/jcontrol \
--slave /usr/bin/jdb jdb /usr/java/default/bin/jdb \
--slave /usr/bin/jhat jhat /usr/java/default/bin/jhat \
--slave /usr/bin/jinfo jinfo /usr/java/default/bin/jinfo \
--slave /usr/bin/jmap jmap /usr/java/default/bin/jmap \
--slave /usr/bin/jps jps /usr/java/default/bin/jps \
--slave /usr/bin/jrunscript jrunscript /usr/java/default/bin/jrunscript \
--slave /usr/bin/jsadebugd jsadebugd /usr/java/default/bin/jsadebugd \
--slave /usr/bin/jstack jstack /usr/java/default/bin/jstack \
--slave /usr/bin/jstat jstat /usr/java/default/bin/jstat \
--slave /usr/bin/jstatd jstatd /usr/java/default/bin/jstatd \
--slave /usr/bin/jvisualvm jvisualvm /usr/java/default/bin/jvisualvm \
--slave /usr/bin/keytool keytool /usr/java/default/bin/keytool \
--slave /usr/bin/native2ascii native2ascii /usr/java/default/bin/native2ascii \
--slave /usr/bin/orbd orbd /usr/java/default/bin/orbd \
--slave /usr/bin/pack200 pack200 /usr/java/default/bin/pack200 \
--slave /usr/bin/policytool policytool /usr/java/default/bin/policytool \
--slave /usr/bin/rmic rmic /usr/java/default/bin/rmic \
--slave /usr/bin/rmid rmid /usr/java/default/bin/rmid \
--slave /usr/bin/rmiregistry rmiregistry /usr/java/default/bin/rmiregistry \
--slave /usr/bin/schemagen schemagen /usr/java/default/bin/schemagen \
--slave /usr/bin/serialver serialver /usr/java/default/bin/serialver \
--slave /usr/bin/servertool servertool /usr/java/default/bin/servertool \
--slave /usr/bin/tnameserv tnameserv /usr/java/default/bin/tnameserv \
--slave /usr/bin/unpack200 unpack200 /usr/java/default/bin/unpack200 \
--slave /usr/bin/wsgen wsgen /usr/java/default/bin/wsgen \
--slave /usr/bin/wsimport wsimport /usr/java/default/bin/wsimport \
--slave /usr/bin/xjc xjc /usr/java/default/bin/xjc \
--slave /usr/share/man/man1/appletviewer.1 appletviewer.1 /usr/java/default/man/man1/appletviewer.1 \
--slave /usr/share/man/man1/apt.1 apt.1 /usr/java/default/man/man1/apt.1 \
--slave /usr/share/man/man1/extcheck.1 extcheck.1 /usr/java/default/man/man1/extcheck.1 \
--slave /usr/share/man/man1/idlj.1 idlj.1 /usr/java/default/man/man1/idlj.1 \
--slave /usr/share/man/man1/jar.1 jar.1 /usr/java/default/man/man1/jar.1 \
--slave /usr/share/man/man1/jarsigner.1 jarsigner.1 /usr/java/default/man/man1/jarsigner.1 \
--slave /usr/share/man/man1/java.1 java.1 /usr/java/default/man/man1/java.1 \
--slave /usr/share/man/man1/javac.1 javac.1 /usr/java/default/man/man1/javac.1 \
--slave /usr/share/man/man1/javadoc.1 javadoc.1 /usr/java/default/man/man1/javadoc.1 \
--slave /usr/share/man/man1/javah.1 javah.1 /usr/java/default/man/man1/javah.1 \
--slave /usr/share/man/man1/javap.1 javap.1 /usr/java/default/man/man1/javap.1 \
--slave /usr/share/man/man1/javaws.1 javaws.1 /usr/java/default/man/man1/javaws.1 \
--slave /usr/share/man/man1/jconsole.1 jconsole.1 /usr/java/default/man/man1/jconsole.1 \
--slave /usr/share/man/man1/jdb.1 jdb.1 /usr/java/default/man/man1/jdb.1 \
--slave /usr/share/man/man1/jhat.1 jhat.1 /usr/java/default/man/man1/jhat.1 \
--slave /usr/share/man/man1/jinfo.1 jinfo.1 /usr/java/default/man/man1/jinfo.1 \
--slave /usr/share/man/man1/jmap.1 jmap.1 /usr/java/default/man/man1/jmap.1 \
--slave /usr/share/man/man1/jps.1 jps.1 /usr/java/default/man/man1/jps.1 \
--slave /usr/share/man/man1/jrunscript.1 jrunscript.1 /usr/java/default/man/man1/jrunscript.1 \
--slave /usr/share/man/man1/jsadebugd.1 jsadebugd.1 /usr/java/default/man/man1/jsadebugd.1 \
--slave /usr/share/man/man1/jstack.1 jstack.1 /usr/java/default/man/man1/jstack.1 \
--slave /usr/share/man/man1/jstat.1 jstat.1 /usr/java/default/man/man1/jstat.1 \
--slave /usr/share/man/man1/jstatd.1 jstatd.1 /usr/java/default/man/man1/jstatd.1 \
--slave /usr/share/man/man1/jvisualvm.1 jvisualvm.1 /usr/java/default/man/man1/jvisualvm.1 \
--slave /usr/share/man/man1/keytool.1 keytool.1 /usr/java/default/man/man1/keytool.1 \
--slave /usr/share/man/man1/native2ascii.1 native2ascii.1 /usr/java/default/man/man1/native2ascii.1 \
--slave /usr/share/man/man1/orbd.1 orbd.1 /usr/java/default/man/man1/orbd.1 \
--slave /usr/share/man/man1/pack200.1 pack200.1 /usr/java/default/man/man1/pack200.1 \
--slave /usr/share/man/man1/policytool.1 policytool.1 /usr/java/default/man/man1/policytool.1 \
--slave /usr/share/man/man1/rmic.1 rmic.1 /usr/java/default/man/man1/rmic.1 \
--slave /usr/share/man/man1/rmid.1 rmid.1 /usr/java/default/man/man1/rmid.1 \
--slave /usr/share/man/man1/rmiregistry.1 rmiregistry.1 /usr/java/default/man/man1/rmiregistry.1 \
--slave /usr/share/man/man1/schemagen.1 schemagen.1 /usr/java/default/man/man1/schemagen.1 \
--slave /usr/share/man/man1/serialver.1 serialver.1 /usr/java/default/man/man1/serialver.1 \
--slave /usr/share/man/man1/servertool.1 servertool.1 /usr/java/default/man/man1/servertool.1 \
--slave /usr/share/man/man1/tnameserv.1 tnameserv.1 /usr/java/default/man/man1/tnameserv.1 \
--slave /usr/share/man/man1/unpack200.1 unpack200.1 /usr/java/default/man/man1/unpack200.1 \
--slave /usr/share/man/man1/wsgen.1 wsgen.1 /usr/java/default/man/man1/wsgen.1 \
--slave /usr/share/man/man1/wsimport.1 wsimport.1 /usr/java/default/man/man1/wsimport.1 \
--slave /usr/share/man/man1/xjc.1 xjc.1 /usr/java/default/man/man1/xjc.1 && \
{
    echo -e "\nSet the Sun HotSpot JVM is default JVM.\n"
    alternatives --set java  /usr/java/default/bin/java
    alternatives --display java | grep -E "/bin/java\b"
    echo -e "\n\nThe Java Version is:\n"
    java -version
}