java - How to inject MANIFEST.MF into jar -


i trying to, debugging purposes, inject (hacked) meta-inf/manifest.mf file jar. created meta-inf dir @ same level jar , created manifest.mf file in it. then, per this tutorial:

jar uf myjar-with-dependencies.jar meta-inf/manifest.mf 

which executed without error wiped out existing manifest without replacing it. know because ran:

jar tf myjar-with-dependencies.jar | grep manifest 

which, before update, returned found file in jar not after update.

"jar ufm" you're after. m argument specifies you're providing manifest file.

jar ufm <yourjar> <yourmanifest> 

otherwise treats regular file end getting stomped on when generates default manifest file.


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