ADDITIONAL SYSTEM INFORMATION :
Windows 10 , Java 1.8.0_251

A DESCRIPTION OF THE PROBLEM :
We are facing below mentioned issue.
org.apache.cxf.interceptor.Fault: Marshalling Error: Entity References are not allowed in SOAP documents
at org.apache.cxf.jaxb.JAXBEncoderDecoder.marshall(JAXBEncoderDecoder.java:270)
at org.apache.cxf.jaxb.io.DataWriterImpl.write(DataWriterImpl.java:239)

REGRESSION : Last worked in version 8u251

STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
We are trying to call the SOAP service and to update the comments field as mentioned below
<currentComment>This is for test /n</currentComment>
then we get below error

org.apache.cxf.interceptor.Fault: Marshalling Error: Entity References are not allowed in SOAP documents
at org.apache.cxf.jaxb.JAXBEncoderDecoder.marshall(JAXBEncoderDecoder.java:270)
at org.apache.cxf.jaxb.io.DataWriterImpl.write(DataWriterImpl.java:239)
at org.apache.cxf.interceptor.AbstractOutDatabindingInterceptor.writeParts(AbstractOutDatabindingInterceptor.java:137)
at org.apache.cxf.wsdl.interceptors.BareOutInterceptor.handleMessage(BareOutInterceptor.java:68)
at org.apache.cxf.phase.PhaseInterceptorChain.doIntercept(PhaseInterceptorChain.java:308)
at org.apache.cxf.endpoint.ClientImpl.doInvoke(ClientImpl.java:535)
at org.apache.cxf.endpoint.ClientImpl.invoke(ClientImpl.java:444)
at org.apache.cxf.endpoint.ClientImpl.invoke(ClientImpl.java:345)

EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
The Service should get pass for above SOAP request .
ACTUAL -
org.apache.cxf.interceptor.Fault: Marshalling Error: Entity References are not allowed in SOAP documents
at org.apache.cxf.jaxb.JAXBEncoderDecoder.marshall(JAXBEncoderDecoder.java:270)
at org.apache.cxf.jaxb.io.DataWriterImpl.write(DataWriterImpl.java:239)
at org.apache.cxf.interceptor.AbstractOutDatabindingInterceptor.writeParts(AbstractOutDatabindingInterceptor.java:137)
at org.apache.cxf.wsdl.interceptors.BareOutInterceptor.handleMessage(BareOutInterceptor.java:68)
at org.apache.cxf.phase.PhaseInterceptorChain.doIntercept(PhaseInterceptorChain.java:308)
at org.apache.cxf.endpoint.ClientImpl.doInvoke(ClientImpl.java:535)
at org.apache.cxf.endpoint.ClientImpl.invoke(ClientImpl.java:444)
at org.apache.cxf.endpoint.ClientImpl.invoke(ClientImpl.java:345)

Since we have seen the the marshalling with JAX-WS does not escape carriage return.
Also as mentioned it should be fixed as part of 1.8.0_251.
But still we are facing issue with marshalling. Kindly let us know on this.

CUSTOMER SUBMITTED WORKAROUND :
As of now we are doing code fix.
currentComment.replaceAll("\n", ": "). This is not correct since our functionality requires /n in the code.

FREQUENCY : always