Hi
I am new to Linux, I installed RH5, and netbeans 6.9 in addition to JDK 6.1 (I used the RPM to install both of them.
when I tried to run a jar file i got:
"Failed to load Main-Class manifest attribute from jedit42install.jar"
when I used this command: "java -version"
the result was:
java version "1.4.2"
I searched via google and found that I should install an updated JRE so I installed this one "jre-6u21-linux-i586-rpm.bin" from sun.
the problem is now that when I run the "java -version" command I get:
"bash: java: command not found"
can you help me please.
Note: I used RPM to install Netbeans ,JDK and JRE so I donot know where are they on my system, now how can I find their locations and how can I solve this problem.
Regards.
Anderson.

Welcome to LQ. .. .. ..

Probably like this
1) su
2)
3) /usr/sbin/alternatives --config java
(( 4) /usr/sbin/alternatives --config javac ))
..


'rpm -ql <package-name>' : Will show the file locations.
You can get the valid package name with , example : rpm -qa | grep jdk

..

Hi Knudfl
Thank you very much I used your commands and located the jre when I issue this command:
/usr/java/jre1.6.0_21/bin/java -jar test.jar
I get the same message which is:
"Failed to load Main-Class manifest attribute from test.jar"
what do you suggest now ?
By the way I used your command to regarding steps 1 to 4 and now when I issue the "java -version" I get:
"java version 1.6.0_21" but I still have the Main-Class Manifest problem.

Did you try : java -jar jedit42install.jar
( Or some other .jar file ) ?


May be the "test.jar" just doesn't work ? An old file ?

..

1 members found this post helpful.

Hi
It worked, this was my first project on Netbeans Linux edition, I checked the project configuration and I found that the Main class was set to none I just set it manually to my class and re-build it and now it is working just fine.
Thank you again.