Pretty useful thing about the Java classpath definition is that the wildcard (*) can be used in a replacement of all
*.jar
and *.JAR
files in the specified directory. So the following line:
java -cp /tmp/app/*:/tmp/myJar.jar com.nullhaus.MyApp
will add the /tmp/myJar.jar
to the classpath, as well as all the *.jar
and *.JAR
files in the /tmp/app
directory.
Just remember that classpath never works recursively, so if you want to scan a subdirectory for jars you need to
point it explicitly.
Second thing to remember is that the following construct:
java -cp /tmp/app/*.jar com.nullhaus.MyApp
will NOT select all *.jar
files in the directory. Instead it will look for a file named "*.jar" within the
/tmp/app
directory!
More reading: JSE 6 Documentation