sebb-2-2 wrote:
On 15/06/2009, esharris eshar...@mac.com wrote:
esharris wrote:
beeky wrote:
I'm jumping in sort of late on this, but here goes.
To locate local config issues do the following.
Create a simple script, call it 'view_cpath.bat', to invoke your app
and
output the classpath before the line that calls your app.
-- begin script (windows batch file example):
echo classpath=%classpath%
java my.org.myapp %*
- end script
invoke your app with view_cpath.bat ... normal arg list ...
With classpath in hand, check the following:
1. is the cli jar file explicitly named in the classpath? *.jar will
not work.
2. is the jar file actually in the place where the classpath says it
should be? Use dir or ls on classpath entries to be sure.
3. check for misspellings of the jar file name in classpath. The
spelling is relative, obviously both classpath entry and actual jar
file
must be spelled the same. Commons jar files have lots of '-' and
'.',
it is easy to get them wrong. I've done it many, many times!
This will find the problem is it is just local configuration.
To make sure you are using the correct jar file do the following.
use 'jar tvf commons-cli-1.1.jar' (from the directory that contain
the
jar file) to view the contents of the jar file. In the output you
should see something like:
423 Wed Jul 04 19:48:06 EDT 2007
org/apache/commons/cli/CommandLineParser.class
If you don't see this you have a bad/wrong jar file. Try downloading
again.
Hope this helps,
-=beeky
esharris wrote:
This the only message:
Exception in thread main java.lang.NoClassDefFoundError:
org/apache/commons/cli/CommandLineParser.
I only have 1.4.2 java on my machine.
Earl
Emmanuel Bourg-3 wrote:
esharris a écrit :
IMHO, NoClassDefFoundError is hard to debug.
Could you paste the full stack trace? Also, check that the code was
compiled with -target 1.4
Emmanuel Bourg
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Initially, there was no CLASSPATH. I added the long name of the
commons-cli-1.2.jar to the class path. The execution of the bat file
displayed the expected class path. But this didn't solve the problem.
I
also introduced a JAVA_HOME environment variable that has the path to
the
jdk.
If I put both jars in the same directory, extract everything out of the
jars, and do a java {path to main class}, it works.
IMHO, my ability to set the class path to a jar is broken. And my
ability to
set the class path to something besides the current directory is broken.
The java command ignores the classpath if you use the -jar option.
This is by design, and is documented:
http://java.sun.com/j2se/1.4.2/docs/tooldocs/windows/java.html#-jar
See the last paragraph for the -jar option.
The problems you are reporting don't seem to be specific to Commons CLI.
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The problem is not specified to a particular jar.
If I want to execute a class file with dependencies, I can do it using class
directories or jar files that are not immediately in the current directory.
I just use the -commandpath option and include the current directory.
If I want to execute a Jar file with dependencies, I can't do it. I need to
learn more about how to get Eclipse to create a manifest containing the
right class pathes.
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