3460730 - Error by applying web service security in soap receiver channel - NullPointerException: while trying to read the field 'WSSE_URI'

When Soap receiver is applying Web Services security, on one node, it might be working, on another node the error appears: "SOAP: Unable to apply Web Services Security to the message".

defaultTrace and relevant traces as per 1514898 - Troubleshooting SAP Process Orchestration / Integration, shows the following error:

[...]
[EXCEPTION]
java.security.PrivilegedActionException: com.sap.aii.security.lib.exception.SecurityException: SecurityException in method: apply( Message, CPALookupObject ). Message: SecurityException in method: apply( Message, CPALookupObject ). WSSEThread-Exception: SecurityException in method: run(). Message: while trying to read the field 'WSSE_URI' of a null object loaded from local variable 'constants'. To-String: java.lang.NullPointerException: while trying to read the field 'WSSE_URI' of a null object loaded from local variable 'constants'; To-String: 
[...]
at java.security.AccessController.doPrivileged(Native Method)
at com.sap.aii.adapter.soap.ejb.WSSecurityExtension.doSign(WSSecurityExtension.java:257)
at com.sap.aii.adapter.soap.ejb.WSSecurityExtension.invokeOnRequest(WSSecurityExtension.java:125)
at com.sap.aii.af.sdk.xi.srt.ExtensionBubble.onMessage(ExtensionBubble.java:56)
at com.sap.aii.af.sdk.xi.srt.ExtensionBubble.onMessage(ExtensionBubble.java:64)
at com.sap.aii.adapter.soap.ejb.XISOAPAdapterBean.callBubbleSequenceReceiver(XISOAPAdapterBean.java:1526)
at com.sap.aii.adapter.soap.ejb.XISOAPAdapterBean.process(XISOAPAdapterBean.java:1085)
[...]
Caused by: com.sap.aii.security.lib.exception.SecurityException: SecurityException in method: apply( Message, CPALookupObject ). WSSEThread-Exception: SecurityException in method: run(). Message: while trying to read the field 'WSSE_URI' of a null object loaded from local variable 'constants'. To-String: java.lang.NullPointerException: while trying to read the field 'WSSE_URI' of a null object loaded from local variable 'constants'; To-String: com.sap.aii.security.lib.exception.SecurityException: SecurityException in method: run(). Message: while trying to read the field 'WSSE_URI' of a null object loaded from local variable 'constants'. To-String: java.lang.NullPointerException: while trying to read the field 'WSSE_URI' of a null object loaded from local variable 'constants'
at com.sap.aii.security.WSSecurityContext.apply(WSSecurityContext.java:263)
[...]
java.lang.NullPointerException: while trying to read the field 'WSSE_URI' of a null object loaded from local variable 'constants'
at com.sap.security.core.securitypolicy.assertions.SecurityPolicyConstants.getWSSENamespaces(SecurityPolicyConstants.java:338)
at com.sap.security.core.ws.wss.WSSecurityDocument.getSecurityHeaderElement(WSSecurityDocument.java:181)
at com.sap.security.core.ws.wss.WSSecurityDocument.<init>(WSSecurityDocument.java:67)
at com.sap.security.core.ws.wss.WSSecurityImpl.applyPolicy(WSSecurityImpl.java:59)
at com.sap.engine.services.wssec.service.WSSecurityServiceImpl.applyPolicy(WSSecurityServiceImpl.java:99)
at com.sap.aii.security.impl.wsse.WSSEThread.run(WSSEThread.java:282)
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)
[...]

• SAP NetWeaver Application Server Java
• Process Integration

KBA , BC-XI-IBC , Integration Builder - Configuration , BC-JAS-SEC-WSS , Web Services Security , Problem