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Bookmark or Share- Can't execute jar- file: "no main manifest attribute"The -jar option only works if the JAR file is an executable JAR file, which means it must have a manifest file with a Main-Class attribute in it. See Packaging Programs in JAR Files to learn how to create an executable JAR. If it's not an executable JAR, then you'll need to run the program with something like: java -cp app.jar com.somepackage ...
- java - How to run a JAR file - Stack OverflowI created a JAR file like this: jar cf Predit.jar *.* I ran this JAR file by double clicking on it (it didn't work). So I ran it from the DOS prompt like this: java -jar Predit.jar It raised "F...
- java - Reference jars inside a jar - Stack OverflowTo load classes in JAR files within a JAR file into the class path, you must write custom code to load those classes. For example, if MyJar.jar contains another JAR file called MyUtils.jar, you cannot use the Class-Path header in MyJar.jar's manifest to load classes in MyUtils.jar into the class path.
- java - Viewing contents of a .jar file - Stack OverflowDrag the jar file in question into a Java project. A copy of the jar file appears. Right click on the jar file, and choose "Build Path" -> "Add to Build Path". Jar file is moved to "Referenced Libraries" node, where it can be opened and navigated in the Project Explorer pane. If seeing source code too is an issue, open a new question.
- java - How to decompile a whole Jar file? - Stack Overflowjava -jar vineflower.jar -dgs=1 c:\Temp\binary\library.jar c:\Temp\souce 2022 update: QuiltMC/quiltflower is the latest most advanced Java decompiler : Quiltflower is a modern, general purpose decompiler focused on improving code quality, speed, and usability.
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