Adding Classes to the JAR File's Classpath

Ques 1- Can I use the wildcard * symbol in Manifest file to add classes/othes jar files to the JAR File's Classpath.I have folder named - Lib . where there are many jar files.Now,do I have to add each jar file by- Class-Path: Lib/jar1-name Lib/jar2-name . Instead, can I do this- Class-Path: Lib/*.jar OR Class-Path: Lib/*.class
RIDICULOUS....105 views has been made but YET NO ANSWER. Isn't there anybody who knows the answer.
Edited by: Tanvir007 on Apr 30, 2008 2:21 AM

Ques 1- Can I use the wildcard * symbol in Manifest file to add ... other jar files ...?No. You could, however, place all your needed JARs in JavaHome/jre1.x.x/lib/ext - if this is a way for you.
Ques 2 ??
RIDICULOUS....105 views has been made but YET NO ANSWER.What hindered you to test it yourself?
And the things we don't know far exceed the things we know. Why do you wonder?
Have a nice day
J�rg

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I'm new to java. I would like to load some plugins in my application (it's going to be packaged as a jar at the end). I managed to find some dinamyc class loading examples but they search for the classes to load in a directory.
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Execution from JAR files and Classpaths -- Help

I am confused about how classes are resolved when running from within a JAR file, and why this is different than running a class that is not inside a JAR file.
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I am running Running Windows 2000.
java version "1.4.1_01"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.4.1_01-b01)
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Here are the results of my experimentations:
The following Works:
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Manifest: Class-Path: biojava.jar
Place biojava.jar in the same directory as SequenceSpiral.jar
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This works perfectly
NONE of the following work
0) Placing biojava.jar in my jre/lib/ext directory instead of the same dir as SequenceSpiral.jar
Exception in thread "main" java.lang.NoClassDefFoundError: org/biojava/bio/seq/FeatureFilter
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1) Just see if it will find the proper jar on my classpath
Manifest: Main-Class: org/biojava/app/SequenceSpiral
I have biojava.jar on my classpath but not in same directory as SequenceSprial.jar
java -jar SequenceSpiral.jar
Exception in thread "main" java.lang.NoClassDefFoundError: org/biojava/bio/seq/FeatureFilter
2) Specify the name if the jar in the Manifest Classpath and see if it will find the proper jar on my classpath
Manifest: Main-Class: org/biojava/app/SequenceSpiral
Manifest: Class-Path: biojava.jar
I have biojava.jar on my classpath but not in same directory as SequenceSprial.jar
java -jar SequenceSpiral.jar
Exception in thread "main" java.lang.NoClassDefFoundError: org/biojava/bio/seq/FeatureFilter
3) Specify the path of the jar in the Manifest Classpath
Manifest: Main-Class: org/biojava/app/SequenceSpiral
Manifest: Class-Path: d:/biojava/biojava.jar
I have biojava.jar on my classpath (D;\biojava\biojava.jar) but not in same directory as SequenceSprial.jar
java -jar SequenceSpiral.jar
Exception in thread "main" java.lang.NoClassDefFoundError: org/biojava/bio/seq/FeatureFilter
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4) Specify current directory and biojava.jar in the Manifest Class-Path
Manifest: Main-Class: org/biojava/app/SequenceSpiral
Manifest: Class-Path: .;biojava.jar
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java -jar SequenceSpiral.jar
Exception in thread "main" java.lang.NoClassDefFoundError: org/biojava/bio/seq/FeatureFilter
5)Specify current directory and the URL of biojava.jar in the Manifest Class-Path
Manifest: Main-Class: org/biojava/app/SequenceSpiral
Manifest: Class-Path: . d:/biojava/biojava.jar
I have biojava.jar on my classpath (D;\biojava\biojava.jar) but not in same directory as SequenceSprial.jar
java -jar SequenceSpiral.jar
Exception in thread "main" java.lang.NoClassDefFoundError: org/biojava/bio/seq/FeatureFilter.
Thank you very much for any help or suggestions,
David Maynard

I did some more testing and I think I now understand what is going on.
I don't like it, but at least I understand it.
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java -jar -cp c:\\absolutePathToMy\extern.jar myApp.jar
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However together these two items make it IMPOSSIBLE to distribute myApp.jar to others and have it work since the path names statically encoded inside the jar are relative to where the jar gets executed from. If I move myApp.jar to a different location on my hard drive it may also fail.
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I tried explicity setting Sealed=false in the manifest but this didn't seem to have any effect.
I hope that this will save others the many hours of time it has taken be to determine that JARS are not well suited for deploying apps with dependenncies on external libs.
I also hope that someone can show me how execute a JAR and specify a classpath that doesn't get IGNORED my the classloader used in loading the jar classes.
This is using java version:
java version "1.4.1_01"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.4.1_01-b01)
Java HotSpot(TM) Client VM (build 1.4.1_01-b01, mixed mode)
Does any one know this bug is fixed in a later release?
David Maynard

Jar file and classpath problem

I0m writing a program that use the kunststoff.jar Look&Feel.
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Manifest-Version: 1.0
Created-By: 1.4.2-beta (Sun Microsystems Inc.)
Main-Class: JListaR.JListaR
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Unfortunately you can't embed jars within a jar and
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The usual approach to solve this problem is to unpack
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How do I import classes in a jar file?

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./RPGMap/HigherClasses:
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Need to know the jar file...?

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Use source code downloads, example commands,
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No warranty is provided.
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at com.ibm.ejs.oa.EJSClientORBImpl.<init>(EJSClientORBImpl.java:98)
at com.ibm.ejs.oa.EJSClientORBImpl.<init>(EJSClientORBImpl.java:74)
at com.ibm.ejs.oa.EJSORB.init(EJSORB.java:386)
at com.ibm.ws.naming.util.Helpers.getOrb(Helpers.java:284)
... 8 more
Caused by: java.lang.NoClassDefFoundError: com/ibm/jvm/ExtendedSystem
at com.ibm.rmi.util.JDKBridge.setCodebaseProperties(JDKBridge.java:226)
at com.ibm.rmi.util.JDKBridge.<clinit>(JDKBridge.java:205)
at com.ibm.rmi.util.RepositoryId.<clinit>(RepositoryId.java:122)
at com.ibm.rmi.iiop.CDROutputStream.<clinit>(CDROutputStream.java:1077)
at com.ibm.rmi.corba.ORB.<init>(ORB.java:250)
at com.ibm.rmi.iiop.ORB.<init>(ORB.java:166)
at com.ibm.CORBA.iiop.ORB.<init>(ORB.java:521)
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstruct
orAccessorImpl.java:39)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingC
onstructorAccessorImpl.java:27)
at java.lang.reflect.Constructor.newInstance(Constructor.java:494)
at java.lang.Class.newInstance0(Class.java:350)
at java.lang.Class.newInstance(Class.java:303)
at org.omg.CORBA.ORB.create_impl(ORB.java:295)
... 15 more
Done listening
In my application classpath following jars are used : jms.jar,naming.jar,namingClient.jar,ibmorb.api,ibmorbapi.jar,jndi.jar
I need to know the jar file name for this class : com/ibm/jvm/ExtendedSystem.And also tell me the solution to solve the above error.Anyone know the solution please reply as early as possible..Thanks in advance

Have you checked if any of the jar files in your class path contains the missing class ?

Name of the JAR file

can you please tell me,
the name of the JAR file where this class "'com.ibm.ejs.ns.jndi.CNInitialContextFactory' " exists .
Thanks

in fact, i need to know the name of the JAR file
because i am getting exceptions,
...classnotfound......i want to put that JAR file
in the classpath to avoid classnotfound exception.Uhm... if the stuff is not in your classpath, then you have no choice but to run through your file system and look into every JAR you can find.
so, if i get to know the name of the JAR file
.....i would be able to remove the runtime error.Doubt it. Websphere doesn't care for your classpath, it uses its own. So if it doesn't find the class, it's not there.

Java Files inside the jar file cannot be read or accessed through Eclpse

The Java File inside the jar file of the eclipse cannot be accessed through the Eclipse . It shows error for the modules in the jar file .
But when compiled with adding the jar files to the class path the compilation is successful .
How can i browse through the files in the jar like going into the function definition .
TIA ,
Imran

Open MPlayer OSX and show the playlist (command-shift-p) then drag the file into the playlist. Click the file in the playlist and click the "i"nfo button. What does it list for file, video and audio format?
Not all of the codecs used in avi and wmv files are available for OS X so I'm guessing your file happens to be using one that isn't...

Adding Classes to the JAR File's Classpath

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