HTTP Status 500 – Internal Server Error, ERROR: Unable to parse product versions for comparison; Current: null war: ForgeRock Access Management 6.5.2 Build 314d553429 (2019-June-17 15:07)

15:47:04.657 SEVERE [http-nio-8080-exec-9] org.apache.catalina.core.StandardWrapperValve.invoke Servlet.service() for servlet [default] in context with path [/openam] threw exception [An error occurred while processing this request. Contact your administrator.] with root cause

        javax.servlet.ServletException: An error occurred while processing this request. Contact your administrator.

                at com.sun.identity.setup.AMSetupFilter.doFilter(AMSetupFilter.java:148)

error from Catalina.log

ERROR: Unable to parse product versions for comparison; Current: null war: ForgeRock Access Management 6.5.2 Build 314d553429 (2019-June-17 15:07)

org.forgerock.openam.upgrade.UpgradeException: Unable to parse product versions for comparison. Current: null war: ForgeRock Access Management 6.5.2 Build 314d553429 (2019-June-17 15:07)

HTTP Status 500 – Internal Server Error

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Type Exception Report

Message An error occurred while processing this request. Contact your administrator.

Description The server encountered an unexpected condition that prevented it from fulfilling the request.

Exception

javax.servlet.ServletException: An error occurred while processing this request. Contact your administrator.

com.sun.identity.setup.AMSetupFilter.doFilter(AMSetupFilter.java:148)

org.forgerock.openam.audit.context.AuditContextFilter.doFilter(AuditContextFilter.java:46)

Note The full stack trace of the root cause is available in the server logs.

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Apache Tomcat/9.0.21

Solution:

unfortunatily the only way to resolve this issues was i have remove openam under webapps and remove .openamcfg under users home directory .openamcfg is hidden file