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Groups > comp.lang.java.programmer > #19533

Re: a question about creating the JAR file

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Sven Köhler schrieb:
> Now method (2) has gained popularity. Probably, because "big fat JAR
> plugins" for several IDEs exist (at least for Eclipse this is true).
> However, I think this method should be avoided for any big application.

I agree. If your .jar file is an application (something you
double click on the desktop provided your environment has the
right association for .jar extension), then this comes handy.

But I also see the following advantage of 2): When your .jar file
is an API collection, and you want to allow access to the API of
multiple .jars. Then I doubt method 1) works.

Here is the scenario:

    util1.jar: Provides class A
    util2.jar: Provides class B
    I want to make superutil.jar that provides class A and B
    so that I can compile against it, i.e.:

    javac -cp superutil.jar ....

I guess javac does not understand the Class-Path: manifest
attribute. Right? So you would need to unpack/pack the two
.jars into one .jar. I guess you can use something along the
fileset in the jar ant task for this purpose, no need to
buy an expensive tool.

Bye

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Thread

a question about creating the JAR file zyng <xsli2@yahoo.com> - 2012-10-26 13:58 -0700
  Re: a question about creating the JAR file Lew <lewbloch@gmail.com> - 2012-10-26 14:14 -0700
    Re: a question about creating the JAR file zyng <xsli2@yahoo.com> - 2012-10-31 12:41 -0700
      Re: a question about creating the JAR file Lew <lewbloch@gmail.com> - 2012-10-31 15:19 -0700
  Re: a question about creating the JAR file Sven Köhler <remove-sven.koehler@gmail.com> - 2012-10-27 16:54 +0200
    Re: a question about creating the JAR file Jan Burse <janburse@fastmail.fm> - 2012-10-27 17:20 +0200
      Re: a question about creating the JAR file Jan Burse <janburse@fastmail.fm> - 2012-10-27 17:24 +0200
        Re: a question about creating the JAR file Sven Köhler <remove-sven.koehler@gmail.com> - 2012-10-27 19:06 +0200
    Re: a question about creating the JAR file Lew <lewbloch@gmail.com> - 2012-10-28 09:44 -0700
  Re: a question about creating the JAR file Roedy Green <see_website@mindprod.com.invalid> - 2012-11-01 18:26 -0700

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