Json2XmlValidatorPipe adding linebreaks to base 64 fields

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Describe the issue When using a jsonpipe to create JSON, base64 input seems to be wrapped. XSD is used and field is set to xs:base64Binary.

\n appears in JSON pipe output base64 field

Reporter Bonno Smeele

Create a JSON pipe with base64 input, see linebreaks appear as output

Screenshots Input:

Output:

XSD:

Please provide the configuration of the Pipe or Receiver with the problem.

            <Json2XmlValidatorPipe name="XMLToJSONConversion"
                outputFormat="JSON"
                throwException="true"
                root="PortimaRequest"
                schema="PushPolicy_1/xsd/JSONModel.xsd">
                <Forward name="success" path="CallInvokeAzuretoken"/>
            </Json2XmlValidatorPipe>
[Pipeline PushPolicy_1.zip](https://github.com/frankframework/frankframework/files/14720801/Pipeline.PushPolicy_1.zip)

Please provide an example of the input message. Alternatively, provide a Ladybug report.


**Environment**

FF! 7.9.1: frank2lifepolicy_portima_con Running on frank2lifepolicy-portima_con-app-acc using Apache Tomcat/9.0.83 Java Version: OpenJDK Runtime Environment (11.0.22+7-LTS) Heap size: 198M, total JVM memory: 603M Free disk space: 25GB, total disk space: 30GB Up since: 2024-03-22 09:42:04 (1h)



**Additional Environment**
 - DBMS: [e.g. Oracle, MSSQL, MariaDB, MySql, PostgreSQL]
 - Browser: [e.g. Chrome, Safari, Edge, Firefox]

**Additional Context**
Add any other context about the problem here. (f.e. ladybug report / test adapter with larva test)

frankframework / frankframework

Json2XmlValidatorPipe adding linebreaks to base 64 fields #6495