When you export your project as a ‘Runnable jar’ (Right mouse on project -> Export -> Runnable jar) you have the option to package all dependencies into the generated jar. It also has two other ways (see screenshot) to export your libraries, be aware of the licences when deciding which packaging method you will use. … Read more
You can use the u option for jar From the Java Tutorials: jar uf jar-file input-file(s) “Any files already in the archive having the same pathname as a file being added will be overwritten.” See Updating a JAR File. Much better than making the whole jar all over again. Invoking this from within your program … Read more
The basic structure of a solution is as follows: There is a main loop responsible for repeatedly loading the latest version of the app (if required) and launching it. The application does its thing, but periodically checks the download URL. If it detects a new version it exits back to the launcher. There are a … Read more
$ unzip -q -c myarchive.jar META-INF/MANIFEST.MF -q will suppress verbose output from the unzip program -c will extract to stdout Example: $ unzip -q -c commons-lang-2.4.jar META-INF/MANIFEST.MF Manifest-Version: 1.0 Ant-Version: Apache Ant 1.7.0 Created-By: 1.5.0_13-119 (Apple Inc.) Package: org.apache.commons.lang Extension-Name: commons-lang Specification-Version: 2.4 Specification-Vendor: Apache Software Foundation Specification-Title: Commons Lang Implementation-Version: 2.4 Implementation-Vendor: Apache Software … Read more
Open a command prompt. Go to the directory where you have your .java files Create a directory build Run java compilation from the command line javac -d ./build *.java if there are no errors, in the build directory you should have your class tree move to the build directory and do a jar cvf YourJar.jar … Read more
I came across this post searching how to add an extra directory for resources. I found a solution that may be useful to someone. Here is my final configuration to get that: sourceSets { main { resources { srcDirs “src/main/resources”, “src/main/configs” } } }
You use either -jar or -cp, you can’t combine the two. If you want to put additional JARs on the classpath then you should either put them in the main JAR’s manifest and then use java -jar or you put the full classpath (including the main JAR and its dependencies) in -cp and name the … Read more
Some of your dependency JARs is a signed JAR, so when you combine then all in one JAR and run that JAR then signature of the signed JAR doesn’t match up and hence you get the security exception about signature mis-match. To fix this you need to first identify which all dependency JARs are signed … Read more
Open build.gradle for library project Write two tasks in build.gradle — deleteJar and createJar and add rule createJar.dependsOn(deleteJar, build) The code from above: task deleteJar(type: Delete) { delete ‘libs/jars/logmanagementlib.jar’ } task createJar(type: Copy) { from(‘build/intermediates/bundles/release/’) into(‘libs/jars/’) include(‘classes.jar’) rename(‘classes.jar’, ‘logmanagementlib.jar’) } createJar.dependsOn(deleteJar, build) Expand gradle panel from right and open all tasks under yourlibrary->others. You will … Read more
It is possible to create a single JAR file with all dependencies including the native JNI libraries for one or more platforms. The basic mechanism is to use System.load(File) to load the library instead of the typical System.loadLibrary(String) which searches the java.library.path system property. This method makes installation much simpler as the user does not … Read more