CODEWITHSUNDEEP
javaclasspathwildcard
djangofan
djangofan

Reputation: 29669

Why aren't wildcarded classpaths working for me?

Im using JDK 1.6.0.25. I'm trying to include a classpath like so:

-cp .;Server.jar;Util.jar;../jars/**/*;./lib/*

Whatever I do, this doesn't work and I end up having to explicity refer to the files within those directories. Any idea how to debug this or does anyone know what I am doing wrong?

Upvotes: 0

Views: 196

Answers (2)

wjans
wjans

Reputation: 10115

See Settings the classpath (Section "Understanding class path wildcards")

You cannot use the Ant or Bash style wildcards, you can only use it in the 'standard' way.

Upvotes: 3

Vineet Reynolds
Vineet Reynolds

Reputation: 76719

From the Java application launcher documentation:

Class path entries can contain the basename wildcard character *, which is considered equivalent to specifying a list of all the files in the directory with the extension .jar or .JAR.

Note that there is no mention of the sequence **, which is not going to be interpreted in any sensible manner by the java executable. You cannot search recursively within sub-directories as well:

Subdirectories are not searched recursively. For example, foo/* looks for JAR files only in foo, not in foo/bar, foo/baz, etc.

In other words, all child directories of the jars directory in the classpath entry ../jars/**/* will have to be explicitly specified if you intend to use wildcards directly from the command-line.

Upvotes: 2

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