JAR Tools - "jar -uvf" to Update a JAR with New Files

Home > JAR Tools

"jar -uvf" to Update a JAR with New Files

Q

What is the "jar" command to update an existing JAR file with new or additional files?

✍: FYIcenter.com

A

To update an existing JAR file with new or additional files, you can use the "jar -uvf jarname files" command.

For example, the following session updates an existing JAR file with some additional classes:

\fyicenter>"%java_home%\bin\jar" -xvf jms.jar

\fyicenter>"%java_home%\bin\jar" -cvf myNew.jar .\javax

\fyicenter>"%java_home%\bin\javac" Hello.java

\fyicenter>"%java_home%\bin\jar" -uvf myNew.jar Hello.class
adding: Hello.class(in = 416) (out= 286)(deflated 31%)

\fyicenter>"%java_home%\bin\jar" -tf myNew.jar
META-INF/
META-INF/MANIFEST.MF
javax/
javax/jms/
javax/jms/BytesMessage.class
javax/jms/Connection.class
javax/jms/ConnectionConsumer.class
...
javax/jms/XATopicConnectionFactory.class
javax/jms/XATopicSession.class
Hello.class

Back to FAQ for JDK JAR (Java ARchive) Tool.

2016-09-25, 2480👍, 1💬

"jar -uvf" to Update a JAR with New Files
What is the "jar" command to update an existing JAR file with new or additional files? To update an existing JAR file with new or additional files, you can use the "jar -uvf jarname files" command. For example, the following session updates an existing JAR file with some additional classes: \fyicent... 2016-09-25, 2481👍, 1💬

💬 2016-09-25 gee: the game is good

"jar -cvfm" to Create a JAR with a Manifest File
What is the "jar" command to create a JAR file with my own manifest file? To create a JAR file with a folder and your own manifest file, you can use the "jar -cvfm jarname manifestfile foldername" command. For example, the following session creates a new JAR file with all files in a sub folder and a... 2015-11-09, 2398👍, 0💬

"jar -ufe" Command to Create an Executable JAR
What is the "jar" command to create an executable JAR? I know the starting class name in the JAR file. If you know the starting class name and that class is in the JAR file, you can use the "jar -uvfe jarname classname" to make JAR file as executable. For example, I want to make myNew.jar executable... 2016-06-13, 2223👍, 0💬

"jar -cvf" to Create a JAR with a Folder
What is the "jar" command to create a JAR file with files in a folder? To create a JAR file with all files in a folder, you can use the "jar -cvf jarname foldername" command. For example, the following session creates a new JAR file with all files in a sub folder, \fyicenter>"%java_home%\bin\ja r"-x... 2015-11-09, 1846👍, 0💬

All rights in the contents of this web site are reserved by the individual author. FYIcenter.com does not guarantee the truthfulness, accuracy, or reliability of any contents.