escapeXml() won't work with , in sub-XML

[toschneck]

If the function escapeXML will be used with a content which contains an comma, the Function will get internal 2 Arguments if i set an Breakpoint and throw the Error Invalid function parameter usage! Missing parameter!

Breackpoint EscapeXmlFunction.java

 if (CollectionUtils.isEmpty(parameterList) || parameterList.size() != 1) {
            throw new InvalidFunctionUsageException("Invalid function parameter usage! Missing parameter!");
        }

        return StringEscapeUtils.escapeXml(parameterList.get(0));

request.xml

 <VAL_IN>citrus:escapeXml('<VAL_IN >
                    <test>with , an error occurs</test>
                  ')
 </VAL_IN>

error

com.consol.citrus.exceptions.InvalidFunctionUsageException: Invalid function parameter usage! Missing parameter!
    at com.consol.citrus.functions.core.EscapeXmlFunction.execute(EscapeXmlFunction.java:39)
    at com.consol.citrus.functions.FunctionUtils.resolveFunction(FunctionUtils.java:143)
    at com.consol.citrus.functions.FunctionUtils.replaceFunctionsInString(FunctionUtils.java:96)
    at com.consol.citrus.context.TestContext.replaceDynamicContentInString(TestContext.java:255)
    at com.consol.citrus.context.TestContext.replaceDynamicContentInString(TestContext.java:241)
    at com.consol.citrus.validation.builder.StaticMessageContentBuilder.buildMessagePayload(StaticMessageContentBuilder.java:70)
    at com.consol.citrus.validation.builder.StaticMessageContentBuilder.buildMessageContent(StaticMessageContentBuilder.java:52)
    at com.consol.citrus.actions.ReceiveMessageAction.createControlMessage(ReceiveMessageAction.java:219)
    at com.consol.citrus.actions.ReceiveMessageAction.validateMessage(ReceiveMessageAction.java:194)
    at com.consol.citrus.actions.ReceiveMessageAction.doExecute(ReceiveMessageAction.java:133)
    at com.consol.citrus.actions.AbstractTestAction.execute(AbstractTestAction.java:42)
    at com.consol.citrus.container.Sequence.doExecute(Sequence.java:47)
    at com.consol.citrus.actions.AbstractTestAction.execute(AbstractTestAction.java:42)
    at com.consol.citrus.container.Parallel$ActionRunner.run(Parallel.java:107)
    at java.lang.Thread.run(Thread.java:745)

[codemental]

This issue still appears when there are more comma "," characters. Like in this example:

@matchesXml('citrus:escapeXml('
                <PARENT_ELEMENT>
                    <TEST_FIELD1>CRM</TEST_FIELD1>
                    <TEST_FIELD2>StatNo=9899, SeqNo=567</TEST_FIELD2>
                    <TEST_FIELD3>LinkStatNo=8988, LinkSeqNo=789</TEST_FIELD3>
                </PARENT_ELEMENT>
')')@