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    <pre><code>public static String printBase64Binary( byte[] val ) { return theConverter.printBase64Binary( val ); } </code></pre> <blockquote> <p>JAXB Providers are required to call the setDatatypeConverter api at some point before the first marshal or unmarshal operation (perhaps during the call to JAXBContext.newInstance). This step is necessary to configure the converter that should be used to perform the print and parse functionality</p> </blockquote> <p>Try setting the converter first</p> <pre><code>/** * This method is for JAXB provider use only. * &lt;p&gt; * JAXB Providers are required to call this method at some point before * allowing any of the JAXB client marshal or unmarshal operations to * occur. This is necessary to configure the datatype converter that * should be used to perform the print and parse conversions. * * &lt;p&gt; * Calling this api repeatedly will have no effect - the * DatatypeConverterInterface instance passed into the first invocation is * the one that will be used from then on. * * @param converter an instance of a class that implements the * DatatypeConverterInterface class - this parameter must not be null. * @throws IllegalArgumentException if the parameter is null */ public static void setDatatypeConverter( DatatypeConverterInterface converter ) { if( converter == null ) { throw new IllegalArgumentException( Messages.format( Messages.CONVERTER_MUST_NOT_BE_NULL ) ); } else if( theConverter == null ) { theConverter = converter; } } </code></pre>
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    1. POWhy the NPE using static method of DatatypeConverter?
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    1. This table or related slice is empty.
    1. USHitham S. AlQadheeb
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    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. VO
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      1. This table or related slice is empty.
      1. VTUpMod
    1. COyou shouldn't have to make this call yourself. the jaxb provider should be doing it.
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      1. USjtahlborn
    2. COBut maybe the jaxb provider is not properly initialized / configured at this point.
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      1. USStephen C
 

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