Hi -
I have a production jar which is signed and as part of a fix i have to change a class file in that jar and redeploy it. so to achieve this i first unsign the old signature, make changes to the file and resign it.
So far i have tried the following steps below
1) unzip the jar in secure Zip
2) delete .SF and .DSA files under META-INF
3) Delete signing checksums from META-INF/MANIFEST.MF: each "Name" and "SHA1-Digest and save the jar
4) updated a class file
5) sign the jar using jarsigner tool
But even after unsigning and once i make any changes to the jar it doesn't seem to work and throws an error "cannot load the jar file "
Can someone please help me how to troubleshoot the signed jar issue and include my change in the jar?
Appreciate your help in advance!