how to add files to jars META-INF

Question

i want to create a jar file in which i want to place some file in the META-INF folder of the jar file.is it possible ? .i know how to create a jar file but clueless about how to put files inside META-INF

below is my desired jar files META-INF directory

META-INF > somefolder > somefile

score 14 · Accepted Answer · answered Nov 02 '10 at 16:19

14

jar uf jarfile.jar META-INF/somefolder/somefile

answered Nov 02 '10 at 16:19

dogbane

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score 2 · Answer 2 · answered Nov 02 '10 at 16:15

2

Rename the .jar-file to something ending with .zip, open it with an appropriate program, change what you want to change, save it and rename it back to .jar. Jarfiles are Zipfiles.

answered Nov 02 '10 at 16:15

thejh

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score 2 · Answer 3 · answered Nov 02 '10 at 16:18

2

From the jar documentation:

Updates an existing file jarfile (when f is specified) by adding to it files and directories specified by inputfiles. For example: jar uf foo.jar foo.class

answered Nov 02 '10 at 16:18

Jeff Swensen

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score 2 · Answer 4 · answered Nov 02 '10 at 16:18

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You probably have the META-INF folder already when you create the jar from the source. Just put your files there before making the jar.

answered Nov 02 '10 at 16:18

Roman Goyenko

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score 2 · Answer 5 · answered Nov 02 '10 at 16:19

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Try creating a META-INF directory among the .class-files that you want to be included in the jar. Put whatever you want in this META-INF directory, and it will be included in the compiled jar-file.

answered Nov 02 '10 at 16:19

aioobe

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score 1 · Answer 6 · answered Mar 20 '17 at 18:12

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Here's how to create a JAR with a custom folder somefolder under META-INF:

mkdir META-INF
cp -a somefolder META-INF
jar cvf jarfile.jar META-INF/

answered Mar 20 '17 at 18:12

mrts

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how to add files to jars META-INF

6 Answers6

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