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Full Discussion: How to avoid "cannot execute" issue with a runnable jar file?
Operating Systems Solaris How to avoid "cannot execute" issue with a runnable jar file? Post 302575030 by kchinnam on Sunday 20th of November 2011 12:33:14 AM
Old 11-20-2011
How to avoid "cannot execute" issue with a runnable jar file?
I am trying to understand why the runnable jar file runs on one Unix server, but not the other with same environment settings.

I copied exact same test jar from here -->
http://www.javaworld.com/javaworld/javatips/javatip127/MakeJarRunnable.zip

on to both Unix servers. Then changed permission on the jar to have execute permission to user.

I am able to execute it on serverA. But on serverB it fails. I checked JDK version, ksh version, tty, path, classpath settings all of them are same on both servers. It does not appear to be a DOS end-of-line character issue with manifest file. I am able to execute a test.sh script that has a simple echo with ^M character at the end of line with just -> $>./test.sh on both servers.

Code:
 
serverA/$>./myjar_r.jar
ksh: ./myjar_r.jar: cannot execute
 
-rwxr-----   1 xxx   yyyy     705 Nov 19 21:55 myjar_r.jar
 
serverA/$>Version M-11/16/88i
 
serverB/$>./myjar_r.jar
Hello, Runnable World!
 
serverB/$>Version M-11/16/88i

Could you try to execute that jar on your end and see if you could figure out what could cause it not to execute?

BlackDog: Programming => Tips => JAR run

http://www.javaworld.com/javaworld/j...arRunnable.zip
Last edited by kchinnam; 11-20-2011 at 01:34 AM.. Reason: spelling
 

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LEARN ABOUT DEBIAN

mh_installjar

MAVEN(1)							   User Commands							  MAVEN(1)

NAME

       Maven - Installs a jar into /usr/share/maven-repo.

SYNOPSIS

       mh_installjar [option]... [pom] [jar] [link]...

DESCRIPTION

       Installs the jar file in /usr/share/maven-repo, at the correct location for Maven. The jar is copied into the build directory.  It can also
       create additional links to the jar, usually located in /usr/share/java.

       Where

	      [pom] is the location of the POM associated with the jar to install.

	      GroupId, artifactId and version will be extracted from this file.

	      [jar] is the path to the jar to install, usually located in the build

	      folder.

	      [link] is an additional link to the jar to install, usually there should

	      be a link to usr/share/java/$jar.jar and usr/share/java/$jar-$version.jar to comply with the Java packaging  guidelines.	Note  that
	      there is no need to specify those particular links if the --java-lib option is used.

OPTIONS

       -h --help: show this text

       -V --version: show the version

       -p<package> --package=<package>: name of the Debian package which

	      will contain this jar file

       -e<version>, --set-version=<version>: set the version for the jar,

	      do not use the version declared in the POM file.

       -r<rules> --rules=<rules>: path to the file containing the

	      rules to apply when cleaning the POM.  Optional, the default location is debian/maven.rules Maven rules are used here to extract the
	      groupId, artifactId and version from the POM file.

       -l --java-lib: Optional, if given it will install the jar into

	      /usr/share/java to comply with the Debian Java specification.  The jar will be installed as /usr/share/java/$name-$version.jar and a
	      versionless link /usr/share/java/$name.jar will point to it, as well as the links installed in /usr/share/maven-repo

       -n<name> --usj-name=<name>: Optional, the name to use when installing the

	      library in /usr/share/java when --java-lib is used.  Defaults to the artifact id found in the POM.

       -j<version> --usj-version=<version>: Optional, the version to use when

	      installing the library in /usr/share/java when --java-lib is used.  Defaults to the version found in the POM.

       -s --no-usj-versionless: Optional, don't install the versionless link

	      in /usr/share/java.  This flag is used only when the -l or --java-lib option is given.

       -d<path> --dest-jar=<path>: Optional, the destination for the real jar.

	      The  other  places  where  the  jar  appears,  in the repository or in the list of links, will be symlinks to this jar.  Defaults to
	      /usr/share/java/$name-$version.jar if --java-lib is used, otherwise the jar is installed in the versioned path in the Maven  reposi-
	      tory.

       -c<classifier> --classifier=<classifier>: Optional, the classifier for

	      the jar. Empty by default.

       -v --verbose: show more information while running

       -n --no-act: don't actually do anything, just print the results

       --skip-clean-pom: don't clean the pom, assume that a previous action ran

	      mh_cleanpom with the correct options. mh_cleanpom is run only to extract the groupId, artifactId and version of the jar

       See also: mh_installpom(1), mh_installsite(1)

Maven Repo Helper version 1.7.1 				   January 2012 							  MAVEN(1)
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