For 7u6 we agreed that it was not necessary to sign the binaries for jinfo, jstack, and the other serviceability tools. This means that the -F option won't work because they require the ability to access the internals of another process.

While investigating code signing I found that just about anything that can be trusted back to a root CA will work, so I signed jstack with our Developer ID certificate. Once I did that the tool gets farther but still fails with the attached log.
 
I'm no expert on these tools, but there's no useful information in the output.
We've already decided to defer a fix this needs to 7u8, so we should defer this one too.

Ok dev / nloodin
ok SQE / ctornqvi
This might also have to be release noted?
added the release-note=yes keyword to flag this issue for inclusion in the release note