With the property "org.xml.sax.driver" set to "org.apache.crimson.parser.XMLReaderImpl", parse(InputSource) method of XMLReaderAdapter class doesn't work. It throws the following error:

java.lang.NullPointerException
        at org.apache.crimson.parser.Parser2.parseInternal(Parser2.java, Compiled Code)
        at org.apache.crimson.parser.Parser2.parse(Parser2.java, Compiled Code)
        at org.apache.crimson.parser.XMLReaderImpl.parse(XMLReaderImpl.java, Compiled Code)
        at org.xml.sax.helpers.XMLReaderAdapter.parse(XMLReaderAdapter.java, Compiled Code)
        at Z01.main(Z01.java, Compiled Code)