Fixes #101 - possible problem with some StAX streams supplying SPACE content outside the root element. Not able to reproduce with my StAX libraries, but the fix is 'safe'.

Author: rolfl

core/src/java/org/jdom2/input/StAXEventBuilder.java

@@ -162,7 +162,9 @@ private static final Document process(final JDOMFactory factory,
 						current.addContent(emt);
 					}
 					current = emt;
-				} else if (event.isCharacters()) {
+				} else if (event.isCharacters() && current != null) {
+					// ignore any character-based content (should only be spaces)
+					// outside of the root element.
 					final Characters chars = event.asCharacters();
 					if (chars.isCData()) {
 						current.addContent(factory.cdata(

core/src/java/org/jdom2/input/StAXStreamBuilder.java

@@ -71,6 +71,7 @@ OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
 import org.jdom2.JDOMException;
 import org.jdom2.JDOMFactory;
 import org.jdom2.Namespace;
+import org.jdom2.Verifier;
 import org.jdom2.input.stax.DTDParser;
 import org.jdom2.input.stax.StAXFilter;
 
@@ -160,9 +161,16 @@ private static final Document process(final JDOMFactory factory,
 					case CDATA:
 						throw new JDOMException("Unexpected XMLStream event at Document level: CDATA");
 					case SPACE:
-						throw new JDOMException("Unexpected XMLStream event at Document level: SPACE");
+						// I have not been able to identify a StAX Stream handler that produces
+						// space data outside the root element, but just in case, we ignore it.
+						break; //throw new JDOMException("Unexpected XMLStream event at Document level: SPACE");
 					case CHARACTERS:
-						throw new JDOMException("Unexpected XMLStream event at Document level: CHARACTERS");
+						final String badtxt = stream.getText();
+						if (!Verifier.isAllXMLWhitespace(badtxt)) {
+							throw new JDOMException("Unexpected XMLStream event at Document level: CHARACTERS (" + badtxt + ")");
+						}
+						// otherwise ignore the chars.
+						break;
 
 					case COMMENT:
 						document.addContent(