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Java Forum / General / January 2007Cannot find main class
I have a client who has two jar files, Hydroline.jar and LiquidLnF.jar, in a directory on WinXP machine. when he goes to that directory, and enters at a DOS prompt: javaw -cp Hydroline.jar;LiquidLnF.jar HydroLine.HydroLine He gets a dialog box that says "Java Virtual Machine Loader.....Could not find the main class. Program will exit." The main class is HydroLine.HydroLine, as specified in the HydroLine.jar's manifest file. Additionally, the class HydroLine.HydroLine is in that jar file. When I go to run this on my machine, it works fine. Anyone have any ideas what might be the problem here? Thanks. -Ike > I have a client who has two jar files, Hydroline.jar and LiquidLnF.jar, in a > directory on WinXP machine. when he goes to that directory, and enters at a [quoted text clipped - 11 lines] > When I go to run this on my machine, it works fine. Anyone have any ideas > what might be the problem here? Thanks. -Ike Can you try: java -jar HydroLine.jar ? -cheers, Manish >I have a client who has two jar files, Hydroline.jar and LiquidLnF.jar, in >a directory on WinXP machine. when he goes to that directory, and enters [quoted text clipped - 11 lines] > When I go to run this on my machine, it works fine. Anyone have any ideas > what might be the problem here? Thanks. -Ike I think the recommended way of running an application in a jar is to use the "-jar" flag, as in "java -jar Hydroline.jar". The Hydronline.jar's manifest file would specify the main class, and any other jar it depends on (i.e. the LiquidLnF.jar). See http://java.sun.com/docs/books/tutorial/deployment/jar/run.html - Oliver > I have a client who has two jar files, Hydroline.jar and LiquidLnF.jar, in a > directory on WinXP machine. when he goes to that directory, and enters at a [quoted text clipped - 11 lines] > When I go to run this on my machine, it works fine. Anyone have any ideas > what might be the problem here? Thanks. -Ike -cp and -jar are mutually exclusive and -jar has priority. You cannot specify a classpath with the -cp option if you specify the -jar option. All classpath arguments must be in the manifest file for jarred applications.  SignatureKnute Johnson email s/nospam/knute/ 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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