Java problem

[Karl Larsen]

Cameron Simpson wrote:
> On 02Jan2008 12:53, Karl Larsen <k5di at zianet.com> wrote:
>   
>> Cameron Simpson wrote:
>>     
>>> The other thing you should bear in mind is that "jar" is a tool like "ar",
>>> "tar" or "zip" - it constructs, inspects or unpacks ".jar" files.
>>>
>>> To _run_ a java program you want the "java" command.
>>>
>>> Usually a Java app is distributed as a jar file, an archive containing the
>>> program, and the command "java -jar foo.jar" is used to run it.
>>>
>>> You still need "java" in your $PATH, or to invoke "java" explicitly (eg
>>> "/usr/java/bin/java") if it is not in your $PATH. Usually it is desirable to
>>> adjust your $PATH you include this stuff, saving painful long paths later.
>>>
>>> Both "java" and "jar" have manual pages, quite good ones. If java in
>>> installed out of the "vendor" area (here "vendor" means redhat/fedora
>>> and "/usr/bin" is part of their area - that they expect a free hand
>>> in), you will need to adjust your $MANPATH to include the "..../man"
>>> directory of wherever the java package is installed, much as you have to
>>> adjust $PATH to include the "..../bin" directory to run "java" without
>>> using the full path of the command.
>>>   
>>>       
>>    OK I am finding this at /usr/java/:
>>
>> [root at k5di ~]# ls /usr/java
>> default  jre1.6.0_03  latest
>>
>> Now default
>>     
>       ^^^^^^^
> I am not sure what you mean at this ^^^ point.
> Unless "default" is a symbolic link that points at "jre1.6.0_03".
> The "ls -l /usr/java/" command will show this.
>
>   
>> and /usr/java/jrel.6.0_03/ are identical and have this:
>>
>> [root at k5di ~]# ls /usr/java/jre1.6.0_03/
>> bin        javaws  LICENSE  plugin  THIRDPARTYLICENSEREADME.txt
>> COPYRIGHT  lib     man      README  Welcome.html
>> [root at k5di ~]#
>>
>>    My experiance to date is that using $ java -jar filename.jar works but 
>> other problems crop up. Also I have no man java. So it is not in the 
>> searchpath for man packages. How do I fix that?
>>     
>
> As mentioned, you want to update your $PATH and $MANPATH.
> Looking at your output above I would suggest running these shell
> commands:
>
>   PATH=/usr/java/jre1.6.0_03/bin:$PATH
>   MANPATH=/usr/java/jre1.6.0_03/man:$MANPATH
>   export PATH MANPATH
>
> The other thing that java tends to like is the $JAVA_HOME variable.
> You might usefull do this instead:
>
>   JAVA_HOME=/usr/java/jre1.6.0_03
>   PATH=$JAVA_HOME/bin:$PATH
>   MANPATH=$JAVA_HOME/man:$MANPATH
>   export JAVA_HOME PATH MANPATH
>
> The see if "man java" produces a manual page. (Be warning, it's a very
> long manual page!) Also see if "java -jar filename.jar" now behaves
> better.
>
> Cheers,
>   
    I did your calls but I made then to /usr/java/default/man for 
example because default will become the latest java unpacked on your 
computer. All I did yeaterday makes the downloaded java work.

Karl


-- 

	Karl F. Larsen, AKA K5DI
	Linux User
	#450462   http://counter.li.org.
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