2637279 - /ssl shows multiple identical items in red even though SSL itself is working in AS Java

Configured SSL in AS Java. Confirmed system is working fine when access AS Java using https protocol. However when access /ssl to check SSL settings, notice multiple identical items shows up in red as following image for same instance.

If follow SAP Note 1332726 example 4 to collect debug trace when access /ssl following error can be found:

WebService authentication error
[EXCEPTION]
java.lang.IllegalArgumentException: Object 'null' is not supported. Only java.lang.String objects are allowed.
at com.sap.engine.services.webservices.espbase.ConfigurationContextImpl.setProperty(ConfigurationContextImpl.java:91)
at com.sap.engine.services.wssec.srt.protocols.consumer.AuthenticationContextInterfaceImpl.setPassword(AuthenticationContextInterfaceImpl.java:63)
at com.sap.security.ssl.config.ws.SAPStartupAccessor.getHTTPSPorts(SAPStartupAccessor.java:125)
at com.sap.security.ssl.config.ws.SAPStartupAccessor.getHTTPSPorts(SAPStartupAccessor.java:85)
at com.sap.security.ssl.config.CfgRuntime.getAccessPoints(CfgRuntime.java:77)
at com.sap.security.ssl.config.InstanceBeanWrapper.getAccessPoints(InstanceBeanWrapper.java:191)
at com.sap.security.ssl.jmx.SAP_ITSAMSecuritySSLConfigurationManager_Impl.getAccessPoints(SAP_ITSAMSecuritySSLConfigurationManager_Impl.java:75)
at com.sap.security.ssl.jmx.SAP_ITSAMSecuritySSLConfigurationManagerWrapper.getAttribute(SAP_ITSAMSecuritySSLConfigurationManagerWrapper.java:590)
at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.getAttribute(DefaultMBeanServerInterceptor.java:647)
at com.sun.jmx.mbeanserver.JmxMBeanServer.getAttribute(JmxMBeanServer.java:678)
at com.sap.pj.jmx.server.MBeanServerImpl.getAttribute(MBeanServerImpl.java:662)
at com.sap.pj.jmx.server.interceptor.MBeanServerWrapperInterceptor.getAttribute(MBeanServerWrapperInterceptor.java:181)
at com.sap.engine.services.jmx.CompletionInterceptor.getAttribute(CompletionInterceptor.java:449)
at com.sap.pj.jmx.server.interceptor.BasicMBeanServerInterceptor.getAttribute(BasicMBeanServerInterceptor.java:169)
at com.sap.jmx.provider.ProviderInterceptor.getAttribute(ProviderInterceptor.java:231)
at com.sap.engine.services.jmx.RedirectInterceptor.getAttribute(RedirectInterceptor.java:232)
at com.sap.pj.jmx.server.interceptor.MBeanServerInterceptorChain.getAttribute(MBeanServerInterceptorChain.java:161)
at com.sap.engine.services.jmx.MBeanServerInvoker.invokeMbs(MBeanServerInvoker.java:136)
at com.sap.engine.services.jmx.JmxServiceConnectorServer.receiveWait(JmxServiceConnectorServer.java:153)
at com.sap.engine.core.cluster.MessageListenerWrapper.process(MessageListenerWrapper.java:96)
at com.sap.engine.core.cluster.impl6.p2pnio.MessageRunner.run(MessageRunner.java:65)
at com.sap.engine.frame.core.thread.Task.run(Task.java:73)
at com.sap.engine.core.thread.impl5.SingleThread.execute(SingleThread.java:178)
at com.sap.engine.core.thread.impl5.SingleThread.run(SingleThread.java:316)

NetWeaver Java system 7.31 onwards version

ssl, https, same entry, same entries, identical items, identical entries, WebService authentication error , KBA , BC-JAS-SEC-WSS , Web Services Security , BC-JAS-SEC , Security, User Management , Problem