Solved
aem 6.5.13 pages blank
I am seeing below warnings while aem 6.5.13 start up and pages go blank after several hours use. I would restart AEM, and pages work fine.
thing is, I could not see any errors in project, error log files.
Warning: Nashorn engine is planned to be removed from a future JDK release
06.10.2022 09:12:10.915 *ERROR* [FelixStartLevel] ERROR: Bundle '690' Error starting jcrinstall:/libs/fd/signatures/install/adobe-aemfd-signatures-6.0.30.jar (java.lang.NoClassDefFoundError: org/bouncycastle/jce/provider/BouncyCastleProvider)
java.lang.NoClassDefFoundError: org/bouncycastle/jce/provider/BouncyCastleProvider
at com.adobe.fd.signatures.activator.Activator.start(Activator.java:34)
at org.apache.felix.framework.util.SecureAction.startActivator(SecureAction.java:698)
at org.apache.felix.framework.Felix.activateBundle(Felix.java:2402)
at org.apache.felix.framework.Felix.startBundle(Felix.java:2308)
at org.apache.felix.framework.Felix.setActiveStartLevel(Felix.java:1539)
at org.apache.felix.framework.FrameworkStartLevelImpl.run(FrameworkStartLevelImpl.java:308)
at java.base/java.lang.Thread.run(Thread.java:829)
Caused by: java.lang.ClassNotFoundException: org.bouncycastle.jce.provider.BouncyCastleProvider not found by adobe-aemfd-signatures [690]
at org.apache.felix.framework.BundleWiringImpl.findClassOrResourceByDelegation(BundleWiringImpl.java:1597)
at org.apache.felix.framework.BundleWiringImpl.access$300(BundleWiringImpl.java:79)
at org.apache.felix.framework.BundleWiringImpl$BundleClassLoader.loadClass(BundleWiringImpl.java:1982)
at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:522)
... 7 more
Warning: Nashorn engine is planned to be removed from a future JDK release
06.10.2022 09:12:19.801 *INFO * [main] Startup completed
Opening browser using cmd=x-www-browser "http://localhost:4502/" || gnome-open "http://localhost:4502/" || firefox "http://localhost:4502/" || mozilla "http://localhost:4502/" || konqueror "http://localhost:4502/" || netscape "http://localhost:4502/" || chromium-browser "http://localhost:4502/" || opera "http://localhost:4502/" || links "http://localhost:4502/" || lynx "http://localhost:4502/"
Startup time:63 seconds
http://localhost:4502/
Quickstart started
