How to parse multiple xml documents from single buffer

Hello,
I am trying to use jaxb 2.0 to parse a buffer which contains multiple xml documents. However, it seems that it is meant to only parse a single document at a time and throws an exception when it gets to the 2nd document.
Is there a way I can tell jaxb to only parse the first complete document and not fetch the next one out of the buffer? Or what is the most efficient way to separate the buffer into two documents without parsing it manually. If I have to search the buffer for the next document root and then split the buffer, it seems like that defeats the purpose of using jaxb as the parser.
I am using the Unmarshaller.unmarshall method and the exception I am getting is:
org.xml.sax.SAXParseException: Illegal character at end of document, <.]
     at javax.xml.bind.helpers.AbstractUnmarshallerImpl.createUnmarshalException(AbstractUnmarshallerImpl.java:315)
     at com.sun.xml.bind.v2.runtime.unmarshaller.UnmarshallerImpl.createUnmarshalException(UnmarshallerImpl.java:476)
     at com.sun.xml.bind.v2.runtime.unmarshaller.UnmarshallerImpl.unmarshal0(UnmarshallerImpl.java:198)
     at com.sun.xml.bind.v2.runtime.unmarshaller.UnmarshallerImpl.unmarshal(UnmarshallerImpl.java:167)
     at javax.xml.bind.helpers.AbstractUnmarshallerImpl.unmarshal(AbstractUnmarshallerImpl.java:137)
     at javax.xml.bind.helpers.AbstractUnmarshallerImpl.unmarshal(AbstractUnmarshallerImpl.java:184)
Thank you for your help

It's just like any other XML parser, it's only designed to parse one XML document. If you have something that concatenates two XML documents together (that's what your "buffer" sounds like), then stop doing that.

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