Finding which JAR contains a class

I often want to search through a large number of JAR files looking for a particular class, and every time I do this I wish I had some utility to make it easier.  So I finally made one:

#!/bin/sh

TARGET="$1"

for i in `find . -name "*jar"`
do
  jar tvf $i | grep $TARGET > /dev/null
  if [ $? == 0 ]
  then
    echo "$TARGET is in $i"
  fi
done

Update: My colleague Chris Johnson just posted a better version of this, with some caching over at the Fusion Security Blog.

About Mark Nelson

Mark Nelson is a Developer Evangelist at Oracle, focusing on microservices and messaging. Before this role, Mark was an Architect in the Enterprise Cloud-Native Java Team, the Verrazzano Enterprise Container Platform project, worked on Wercker, WebLogic and was a senior member of the A-Team since 2010, and worked in Sales Consulting at Oracle since 2006 and various roles at IBM since 1994.
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2 Responses to Finding which JAR contains a class

  1. Pingback: Finding which JAR contains a class

  2. Pingback: Finding which JAR contains a class – again! | RedStack

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