Check signature expiration of web client jar files

The code files of the Service Manager web client (jar files) implemented by HPE are code signed. Depending on the security level for java in the browser, jar files with expired signature certification cannot be run. The recommended fix for this issue is to upgrade the web client to the latest version.

For that reason, the Service Manager administrator should proactively get a list of these expiration dates.

The jarsigner tool of the Java JDK can be used to display the expiration date of a jar file:

<JDK directory>\bin\jarsigner.exe -certs -verify -verbose <web application server directory>\webapps\webtier-9.50\ext\<jar file>

Only the first listed certificate expiration date is relevant.

For information on how to determine if a Java certificate has expired, refer to knowledge article KM02473468 and the Oracle documentation.