Question
Mandiri
ID
Last activity: 26 Mar 2025 9:06 EDT
Unable to startup PEGA due to error PRAppLoader was not properly initialized
We facing an error SEVERE [main] com.pega.pegarules.boot.internal.extbridge.AppServerBridgeToPega. Problem during method invocation (contextInitialized) java.lang.RuntimeException: PRAppLoader was not properly initialized, unable to load class com.pega.pegarules.web.servlet.WebAppLifeCycleListener while we upgrade database from EDB12 to EDB16. After we repointing to the DB, the PEGA unable to startup and error above appeared.
Pegasystems Inc.
US
@Irvan Mangolo Panggabean Can you share the logfile(s) for this issue? As is there isn't much to work with when trying to help. thank you
Mandiri
ID
Hi Philip,
I've attached the log from our Pega startup. Please let me know if you find any clues that could help us resolve the issue properly.
Thanks!
Updated: 26 Mar 2025 9:06 EDT
Pegasystems Inc.
US
I noticed this error:
25-Mar-2025 14:43:15.112 SEVERE [main] org.apache.catalina.util.LifecycleBase.handleSubClassException Failed to start component [Connector[AJP/1.3-8009]] org.apache.catalina.LifecycleException: Protocol handler start failed at org.apache.catalina.connector.Connector.startInternal(Connector.java:1075) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183) at org.apache.catalina.core.StandardService.startInternal(StandardService.java:454) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183) at org.apache.catalina.core.StandardServer.startInternal(StandardServer.java:934) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183) at org.apache.catalina.startup.Catalina.start(Catalina.java:772) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:345) at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:476) Caused by: java.lang.IllegalArgumentException: The AJP Connector is configured with secretRequired="true" but the secret attribute is either null or "". This combination is not valid. at org.apache.coyote.ajp.AbstractAjpProtocol.start(AbstractAjpProtocol.java:270) at org.apache.catalina.connector.Connector.startInternal(Connector.java:1072) ... 12 more
You might be able to eliminate this issue by changing the following setting in file server.xml:
<Connector port="8009" protocol="AJP/1.3" redirectPort="8443" secretRequired="false" />
(change secretRequired to false)
Next, make sure your stack is using supported versions of the app server, the DB version, java, etc, which are supported for Pega 8.6 as shown in the Platform Support Guide