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 eve

Answer 1

It seems that these messages are printed when running in "verbose" mode. What I don't get is that the verbose mode doesn't seem to be activated by default.

Anyway, could you try to set the one-jar.verbose system property to false when running your one-jar:

java -Done-jar.verbose=false -jar <one-jar.jar>

Answer 2

There is no way to do this without modifying the source code

Answer 3

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.

Answer 4

There's two places to get the one-jar plugin from.

1. https://github.com/jolira/onejar-maven-plugin
2. http://code.google.com/p/onejar-maven-plugin/

The 1st one claims to be just a copy of the 2nd one that's served from Maven's main repository. I was encouraged to use this one as it doesn't require specifiying an additional plugin repository that the 2nd one requires. However, when I switched to use the 2nd one (the official one), this problem went away for me.

Note - passing -Done-jar.verbose=false worked for me but not when set in file one-jar.properties as someone stated above.

Answer 5

I found I needed to use version 1.4.5 (1.4.4 did not work) and then the suggestion to place a one-jar.properties file at the root of my jar file with a single line reading one-jar.silent=true worked for me.

Answer 6

I submitted a patch for this quite some time ago that merely makes the default behavior silent.

    public static final int LOGLEVEL_VERBOSE = 5;

    // Loglevel for all loggers.
 -  private static int loglevel = LOGLEVEL_INFO;
 +  private static int loglevel = LOGLEVEL_NONE;

    private final String prefix;

AFAIK, it never got applied. Recently I fixed another issue, so I put my fixes out here:

https://github.com/nsoft/uno-jar

Please Re-read the "as is, no warranty" part of the license several times :)