Sometimes jar files get corrupted and we will get errors like below when we will run the file.
When we try to see the content with jar -tvf test.jar.
$ java -jar test.jar Error: Invalid or corrupt jarfile test.jar
When we try to see the content with jar -tvf test.jar.
java.util.zip.ZipException: error in opening zip file
at java.util.zip.ZipFile.open(Native Method)
at java.util.zip.ZipFile.<init>(ZipFile.java:127)
at java.util.zip.ZipFile.<init>(ZipFile.java:88)
at sun.tools.jar.Main.list(Main.java:977)
at sun.tools.jar.Main.run(Main.java:222)
at sun.tools.jar.Main.main(Main.java:1147)
Run below command. If this is giving proper output like below then it is not corrupted.
It should give information about the classes present in that jar file and few others.
This jar file may work with -cp command. This usually happens if you use prefix with /META-INF/MANIFEST.MF
testuser@indl123!:testuser> unzip -lv RunDbSttm.jar
Archive: RunDbSttm.jar
Length Method Size Cmpr Date Time CRC-32 Name
-------- ------ ------- ---- ---------- ----- -------- ----
0 Defl:N 2 0% 07-20-2016 11:49 00000000 META-INF/
68 Defl:N 67 2% 07-20-2016 11:49 0a41c062 META-INF/MANIFEST.MF
3653 Defl:N 2022 45% 07-20-2016 11:48 e8c11d5d RunDbSttm.class
-------- ------- --- -------
3721 2091 44% 3 files
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