bash find with two commands in an exec ~ How to find a specific Java class within a set of JARs -

my use case want search collection of jars specific class file. more specifically, want search recursively within directory *.jar files, list contents, looking specific class file.

so have far:

find . -name *.jar -type f -exec echo {} \; -exec jar tf {} \; 

this list contents of jar files found recursively. want put grep within seconed exec because want second exec print contents of jar grep matches.

if put pipe , pipe grep afterward, like:

find . -name *.jar -type f -exec echo {} \; -exec jar tf {} \; | grep $classname 

then lose output of first exec, tells me class file (the name of jar file not match class file name).

so if there way exec run 2 commands, like:

-exec "jar tf {} | grep $classname" \; 

then work. using grep $(...) in exec command wouldn't work because need {} find take place of file found.

is possible? (also open other ways of doing this, command line preferred.)

i find difficult execute multiple commands within find-exec, grab results find , loop around results.

maybe might help?

find . -type f -name *.jar | while read jarfile; echo $jarfile; jar tf $jarfile; done