Detection Servers unknown on Enforce Server after install

Products

• Data Loss Prevention Core Package

Issue/Introduction

Detection servers are showing unknown 

Environment

RHEL/Windows

25.1 and above 

 

Cause

custom certificate was installed without an alias name. In the tomcat logs we see:

File: Enforce/logs/tomcat/localhost.2026-07-27.log

Date: 7/27/2026 7:51:04 PM

Thread: 

Level: SEVERE

Source: WrapperStartStopAppMain

Message: org.apache.catalina.util.LifecycleBase.handleSubClassException Failed to initialize component [Connector["https-jsse-nio-8443"]]

org.apache.catalina.LifecycleException: Protocol handler initialization failed

at org.apache.catalina.connector.Connector.initInternal(Connector.java:1027)

at org.apache.catalina.util.LifecycleBase.init(LifecycleBase.java:122)

at org.apache.catalina.core.StandardService.initInternal(StandardService.java:525)

at org.apache.catalina.util.LifecycleBase.init(LifecycleBase.java:122)

at org.apache.catalina.core.StandardServer.initInternal(StandardServer.java:986)

at org.apache.catalina.util.LifecycleBase.init(LifecycleBase.java:122)

at org.apache.catalina.startup.Catalina.load(Catalina.java:690)

at org.apache.catalina.startup.Catalina.load(Catalina.java:713)

at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(Unknown Source)

at java.base/java.lang.reflect.Method.invoke(Unknown Source)

at org.apache.catalina.startup.Bootstrap.load(Bootstrap.java:302)

at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:472)

at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(Unknown Source)

at java.base/java.lang.reflect.Method.invoke(Unknown Source)

at org.tanukisoftware.wrapper.WrapperStartStopApp.run(WrapperStartStopApp.java:316)

at java.base/java.lang.Thread.run(Unknown Source)

Caused by: java.lang.IllegalArgumentException: Alias name [null] does not identify a key entry

at org.apache.tomcat.util.net.AbstractJsseEndpoint.createSSLContext(AbstractJsseEndpoint.java:115)

at org.apache.tomcat.util.net.AbstractJsseEndpoint.initialiseSsl(AbstractJsseEndpoint.java:71)

at org.apache.tomcat.util.net.NioEndpoint.bind(NioEndpoint.java:228)

at org.apache.tomcat.util.net.AbstractEndpoint.bindWithCleanup(AbstractEndpoint.java:1373)

at org.apache.tomcat.util.net.AbstractEndpoint.init(AbstractEndpoint.java:1386)

at org.apache.coyote.AbstractProtocol.init(AbstractProtocol.java:663)

at org.apache.coyote.http11.AbstractHttp11Protocol.init(AbstractHttp11Protocol.java:80)

at org.apache.catalina.connector.Connector.initInternal(Connector.java:1025)

... 15 more

Caused by: java.io.IOException: Alias name [null] does not identify a key entry

at org.apache.tomcat.util.net.SSLUtilBase.getKeyManagers(SSLUtilBase.java:389)

at org.apache.tomcat.util.net.SSLUtilBase.createSSLContext(SSLUtilBase.java:268)

at org.apache.tomcat.util.net.AbstractJsseEndpoint.createSSLContext(AbstractJsseEndpoint.java:113)

... 22 more

Resolution

Reimport the custom certficate correctly and make sure the alias name is not null.