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Which java

Posted on 2004-07-30
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Last Modified: 2013-12-06
Hi All,
            I am stuck to problem in Red hat(Linux 9), I installed Red Hat (Linux 9) server,  now the problem is  when i run 'javac' command it gives me error message
 gcj: no input files
and when I run command 'which java', it gives me the following path

/usr/bin/java

wheras I had installed j2sdk1.4.2_03 at /usr/local/ and edited /etc/profile file as follows
export JAVA_HOME=/usr/local/j2sdk1.4.2_03
export PATH=$PATH:$JAVA_HOME/bin

and when i run command 'source /etc/profile' nothing happens, it still takes /usr/bin/java path. I want to use the java which i installed at /usr/local/j2sdk1.4.2_03 , how can i do this?can anyone help me out? I will be thankful to you.

wishes
saharey
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Question by:saharey
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jlevie earned 252 total points
ID: 11676244
/usr/bin is in PATH before /usr/local/j2sdk1.4.2_03/bin, so the copy of java there will be the one found. Change your PATH set up to be:

export PATH=$JAVA_HOME/bin:$PATH

and then executing java will find the new copy.
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by:255x4
255x4 earned 248 total points
ID: 11680015
Or, you can delete the java at /usr/bin and then make a symlink to the new one.

su root
{login as root}
cd /usr/bin
rm java
ln -s /usr/local/j2sdk1.4.2_03/bin/java /usr/bin/java

This will link the /usr/bin/java to the correct location for java.  The only reason you would really want to do this is because some programs may want to point to /usr/bin/java instead of just finding out where java is on the machine.

Also, you will need to symlink your java plugin for netscape or whichever browser you are using.  Just do the same:

ln -s /usr/local/j2sdk1.4.2_03/jre/plugin/i386/ns610-gcc32/libjavaplugin_oji.so {path to mozilla or other browsers plugin directory}/libjavaplugin_oji.so

This will allow your browser to use the plugin.  Note, the ns610-gcc32 will work for most netscape and mozilla browsers, but if you have a problem with one, use the ns610 directory instead.

255x4
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