one-jar remove verbose warning information on application load

Question

I am using Maven, with the one-jar pluggin, but when I run the one jar executable, I'm greeted with a wall of warnings, this is unacceptable for use

I've looked at every available resource on one-jar and see no instruction on how to keep the jar for spewing out tons of warnings when run, has anyone solved this?

JarClassLoader: Warning: META-INF/LICENSE.txt in lib/commons-io-1.4.jar is hidden by lib/commons-collections-3.2.1.jar (with different bytecode)
JarClassLoader: Warning: META-INF/NOTICE.txt in lib/commons-io-1.4.jar is hidden by lib/commons-collections-3.2.1.jar (with different bytecode)
JarClassLoader: Warning: META-INF/LICENSE.txt in lib/commons-lang-2.4.jar is hidden by lib/commons-collections-3.2.1.jar (with different bytecode)
JarClassLoader: Warning: META-INF/NOTICE.txt in lib/commons-lang-2.4.jar is hidden by lib/commons-collections-3.2.1.jar (with different bytecode)

Answer 1

I found that if you create a one-jar.properties file and put it in the root of your runtime classpath (ie, where your project .class files end up), it will be read by the one-jar Boot class. An entry in this properties file such as:

one-jar.silent=true

will suppress the one-jar log messages altogether.

Other values that the Boot class looks for are one-jar.info and one-jar.verbose.

The default level is INFO. As Pascal Thivent indicated above, you can also set a System property via the command line with the -D parameter of the java command, but if you do not want to have to stipulate or remember this, the properties file approach works great.