InputStream is = null;
ByteArrayOutputStream memoryStream=null;
ContentReader oWORDContent=null;

WordprocessingMLPackage wordMLPackage=null;

try {

memoryStream = new ByteArrayOutputStream();

// Get the document from the repo
NodeRef oNodeRef = new NodeRef("workspace","SpacesStore",docRef);

oWORDContent = getReader(oNodeRef);

// Get content into InputStream
is = oWORDContent.getContentInputStream();

   try {

   wordMLPackage = WordprocessingMLPackage.load(is);


//custom properties
org.docx4j.openpackaging.parts.DocPropsCustomPart docPropsCustomPart = wordMLPackage.getDocPropsCustomPart();

// DO things here regarding the properties...


System.out.println("before save");

// save to a memory stream
wordMLPackage.save(memoryStream);

System.out.println("after save");

}
catch (Docx4JException e) {

   System.out.println("error1" );

   } catch (Exception e) {
      System.out.println("error2" );

   }

// do something here with bytearray... cant reach this

}

         catch (IOException e)
         {
            System.out.println("error3");


   }
         catch(Exception e){
            System.out.println("error4");

         }

         finally
         {
       System.out.println("I reach this...");
}


I can load and get the properties of the document.

debug info: I have an error but it doesnt seems to have to do with the save method, because I can reach "before save" after.

ERROR [docx4j.jaxb.NamespacePrefixMapperUtils] [http-apr-8080-exec-9] name: com.sun.xml.internal.bind.namespacePrefixMapper value: org.docx4j.jaxb.NamespacePrefixMapperSunInternal@3332d32c .. trying RI.

before save
I reach this...