Finding a class in jars

find.class.in.jars

# prints name of the name of the jar
grep -l "classname" *.jar

# prints package of the class
find . -name "*.jar" -exec jar -t -f {} \; | grep "classname"

# list all the class files that match a given name:
find path/to/libs -name '*.jar' -exec grep -Hls <className> {} \;

# JAR could be anywhere in the system use locate and find command:
for i in $(locate "*.jar");
 do echo $i; jar -tvf $i | grep -Hsi <classname>;
done