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Java Forum / General / March 2007jar
Hello all, I am trying to create an executable jar file from my JOGL prog. When trying to run it (example.jar)so: java -jar example.jar I get error: can't find class ..net/java/jogl/GLEventListener. Any suggestions or comments gratefully received. Ivan > Hello all, I am trying to create an executable jar file from my JOGL prog. > When trying to run it (example.jar)so: java -jar example.jar I get error: > can't find class ..net/java/jogl/GLEventListener. Any suggestions or > comments gratefully received. > Ivan Well your program wants GLEventListener, where is it? Is that a class you wrote? Is it part of example.jar? Is it in some library somewhere?  SignatureKnute Johnson email s/nospam/knute/ >> Hello all, I am trying to create an executable jar file from my JOGL >> prog. [quoted text clipped - 5 lines] > Well your program wants GLEventListener, where is it? Is that a class > you wrote? Is it part of example.jar? Is it in some library somewhere? Hello, I didn't write it. It's some standard jogl thing so it's probably somewhere but the user should not tinker with that. Ivan >>> Hello all, I am trying to create an executable jar file from my JOGL >>> prog. [quoted text clipped - 9 lines] > somewhere but the user should not tinker with that. > Ivan You are not going to get very far without it as you seem to have discovered. SignatureKnute Johnson email s/nospam/knute/ >>>> Hello all, I am trying to create an executable jar file from my JOGL >>>> prog. [quoted text clipped - 12 lines] > You are not going to get very far without it as you seem to have > discovered. Hello, I have this file: /bla/classes/net/java/games/jogl/GLEventListener.class How can I use this information in view of the error message "can't find class net/java/jogl/GLEventListener" ? Ivan >>>>> Hello all, I am trying to create an executable jar file from my JOGL >>>>> prog. [quoted text clipped - 18 lines] > class net/java/jogl/GLEventListener" ? > Ivan Your program needs GLEventListener. If that is in a .jar file somewhere, you need to include that file in your java classpath. The java classpath for an application in a .jar must be specified in the manifest file. Read the article I pointed you to it tells you everything you need to know. SignatureKnute Johnson email s/nospam/knute/ >>>>> Hello all, I am trying to create an executable jar file from my JOGL >>>>> prog. [quoted text clipped - 19 lines] > class net/java/jogl/GLEventListener" ? > Ivan Hello, I have solved this now by putting the line Class-Path: /bla into my manifest file. This works fine except the program needs a data file "flag.bmp". If this is inthe current directory all goes well, otherwise it can't find it. If I do jar cmf manifest example.jar flag.bmp and then "java -jar example.jar " it says it can't find the main class. Further suggestions gratefully received. Ivan >>>>>> Hello all, I am trying to create an executable jar file from my JOGL >>>>>> prog. [quoted text clipped - 31 lines] > Further suggestions gratefully received. > Ivan You can probably add the flag.bmp file to the example.jar but you can't jar a jar and get it to work. As far as I have been able to determine, if you have an application in a jar you cannot retrieve a resource that is not also in a jar. SignatureKnute Johnson email s/nospam/knute/ >>>>>>> Hello all, I am trying to create an executable jar file from my JOGL >>>>>>> prog. [quoted text clipped - 20 lines] > if you have an application in a jar you cannot retrieve a resource that > is not also in a jar. Hello, following a JAR tutorial from SUN I did this jar uf example.jar flag.bmp and then copying example.jar to another directory D and then cd D, java -jar example.jar the flag.bmp was not found, but then extracting the contents of example.jar: jar xf example.jar (in D) which put all files in the jar file into D, including flag.bmp so that doing again java -jar example.jar all went well. Is this how one is supposed to do it? Ivan >> You can probably add the flag.bmp file to the example.jar but you can't >> jar a jar and get it to work. As far as I have been able to determine, [quoted text clipped - 11 lines] > do it? > Ivan I'd have to see some code and then try it myself. SignatureKnute Johnson email s/nospam/knute/ >>> Hello all, I am trying to create an executable jar file from my JOGL >>> prog. [quoted text clipped - 9 lines] > somewhere but the user should not tinker with that. > Ivan Hello, I see from articles on the internet that some libraries need to be included on the manifest file and the classpath is also mentioned. It would seem best if some kind person could give me an actual example, the simpler the better. I am new to jar; my aim is to eventually make my program usable with web start. Ivan >>>> Hello all, I am trying to create an executable jar file from my JOGL >>>> prog. [quoted text clipped - 15 lines] > with web start. > Ivan http://knutejohnson.com/classpath.html SignatureKnute Johnson email s/nospam/knute/ .. > ..I am new to jar; my aim is to eventually make my program usable > with web start. Web start based applications do not require a manifest, generally*. I have deployed many web start based apps. and have never bothered to including a manifest. * Though inclusion of a manifest that specifies the main class, can remove the need to explicitly name the main, in the JNLP file. Andrew T. > Hello all, I am trying to create an executable jar file from my JOGL prog. > When trying to run it (example.jar)so: java -jar example.jar I get error: > can't find class ..net/java/jogl/GLEventListener. Any suggestions or > comments gratefully received. > Ivan Where is the JOGL jar file? If it is not in the extension directory or in the class path, then there is your problem. >> Hello all, I am trying to create an executable jar file from my JOGL >> prog. [quoted text clipped - 5 lines] > Where is the JOGL jar file? If it is not in the extension directory or > in the class path, then there is your problem. Hello, it is in the current directory. Ivan >>> Hello all, I am trying to create an executable jar file from my JOGL >>> prog. [quoted text clipped - 7 lines] > Hello, it is in the current directory. > Ivan There's your problem. What you need to do is either move the JOGL jar file into the extensions directory, or execute java like this: java -cp "jogl.jar" -jar example.jar I would recommend moving the jar file to the extensions directory, cf. http://java.sun.com/docs/books/tutorial/ext/ for more information. > There's your problem. What you need to do is either move the JOGL jar > file into the extensions directory, or execute java like this: > java -cp "jogl.jar" -jar example.jar That won't work. The classpath command line option is ignored if the -jar option is used. SignatureKnute Johnson email s/nospam/knute/ > Hello all, I am trying to create an executable jar file from my JOGL prog. JOGL projects are often launched using web start*. You can then simply refer to the JOGL classes as a JNLP based 'library' (which the JOGL developers maintain). * E.G. <http://www.javasaver.com/testjs/jws/04/glclock.jnlp> HTH Andrew T. Free MagazinesGet these publications absolutely FREE for up to 12 months. There are no hidden fees and no obligation. Simply choose a title, complete the application form and submit it. Read more ...
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