Is Performance Center is digitally signed by Broadcom/CA?
Release : 3.7
Component : IM Reporting / Admin / Configuration
Jar signing is only needed for the JNLP OneClick app to work.
Spectrum signs all jars because they could be used for OneClick and/or server. It was easier in build process to just sign them all.
Performance Management doesn't provide jars to clients that need to validate any signatures; clients being web browsers or JNLP app.