In Linux, under Reports tab, I try to check the health details of all monitors. I get the following Java Exception: ErrorDispatcherValve[localhost]: Exception Processing ErrorPage[exceptionType=java.lang.Throwable, location=/jsp/ErrorPage.jsp] java.lang.ClassCastException: java.lang.NoClassDefFound

In Linux, under Reports tab, I try to check the health details of all monitors. I get the following Java Exception: ErrorDispatcherValve[localhost]: Exception Processing ErrorPage[exceptionType=java.lang.Throwable, location=/jsp/ErrorPage.jsp] java.lang.ClassCastException: java.lang.NoClassDefFound

Solution: The display variable is not properly set. Open the file <AppManagerHome>\ startApplicationManager.sh and comment the following lines:
 
                # if [ "$DISPLAY" = "" ]; then
                    AWT_HEADLESS=-Djava.awt.headless=true
                # fi

                    New to ADSelfService Plus?

                      • Related Articles

                      • RBM - Configure Content Check using Playback Script

                        Related topic: Check out this link if you want to configure content check through the Chrome Extension (Web Transaction Recorder). Content Check option Applications Manager's Real Browser Monitoring allows to configure content check to be done on the ...
                      • Adding APM Insight Java agent in a Kubernetes environment

                        There are three methods for installing the APM Insight Java agent in a Kubernetes environment. Using Dockerfile Using InitContainers Using Persistent Volumes Prerequisites Download the latest APM Insight Java agent (apminsight-javaagent.zip) file. ...
                      • Information about "Unknown Monitors"

                        When you add Monitors like MS SQL or any Service Server type, the host of the database will automatically get discovered as an "Unknown monitor". This monitor will consume a license. You can choose to edit and update the correct details of the host ...
                      • RBM - Add content check via Web Transaction Recorder (Chrome Extension)

                        Related topic: Check out this link if you want to configure content check through the Playback Script. Applications Manager's Real Browser Monitoring allows to configure content check to be done on the webpages by configuring checks for both Content ...
                      • LDAP - Unable to find valid SSL Certificate

                        If there is an error while adding LDAP Server Monitor with the message "Unable to find valid SSL Certificate", then please try the below steps to troubleshoot the issue. When the error occurs we can find the below traces in the "stderr.txt.*" log ...