XStream
  1. XStream
  2. XSTR-338

NPE in JsonHierarchicalStreamWriter.startNode(Class clazz) when clazz is null

          Details

          • Type: Bug Bug
          • Status: Closed Closed
          • Resolution: Fixed
          • Affects Version/s: None
          • Fix Version/s: 1.2.1
          • Component/s: None
          • Labels:
            None
          • JDK version and platform:
            Sun 1.5.0_06 for Windows

            Description

            Tried the experimental JSON support and ran into a NPE when ColorConverter attempts to marshall a Color.class instance as four ints, calling startNode(String) without the 2nd Class parameter:

            Exception in thread "main" java.lang.NullPointerException
            at java.lang.Class.isAssignableFrom(Native Method)
            at com.thoughtworks.xstream.io.json.JsonHierarchicalStreamWriter.startNode(JsonHierarchicalStreamWriter.java:77)
            at com.thoughtworks.xstream.io.json.JsonHierarchicalStreamWriter.startNode(JsonHierarchicalStreamWriter.java:58)
            at com.thoughtworks.xstream.io.WriterWrapper.startNode(WriterWrapper.java:17)
            at com.thoughtworks.xstream.io.path.PathTrackingWriter.startNode(PathTrackingWriter.java:25)
            at com.thoughtworks.xstream.converters.extended.ColorConverter.write(ColorConverter.java:49)
            at com.thoughtworks.xstream.converters.extended.ColorConverter.marshal(ColorConverter.java:29)
            at com.thoughtworks.xstream.core.AbstractReferenceMarshaller.convert(AbstractReferenceMarshaller.java:59)
            at com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:50)
            at com.thoughtworks.xstream.annotations.AnnotationReflectionConverter.marshallField(AnnotationReflectionConverter.java:37)
            at com.thoughtworks.xstream.converters.reflection.AbstractReflectionConverter$2.writeField(AbstractReflectionConverter.java:105)
            at com.thoughtworks.xstream.converters.reflection.AbstractReflectionConverter$2.visit(AbstractReflectionConverter.java:81)
            at com.thoughtworks.xstream.converters.reflection.PureJavaReflectionProvider.visitSerializableFields(PureJavaReflectionProvider.java:109)
            at com.thoughtworks.xstream.converters.reflection.AbstractReflectionConverter.doMarshal(AbstractReflectionConverter.java:66)
            at com.thoughtworks.xstream.converters.reflection.AbstractReflectionConverter.marshal(AbstractReflectionConverter.java:41)
            at com.thoughtworks.xstream.core.AbstractReferenceMarshaller.convert(AbstractReferenceMarshaller.java:59)
            at com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:50)
            at com.thoughtworks.xstream.core.TreeMarshaller.start(TreeMarshaller.java:73)
            at com.thoughtworks.xstream.core.ReferenceByXPathMarshallingStrategy.marshal(ReferenceByXPathMarshallingStrategy.java:34)
            at com.thoughtworks.xstream.XStream.marshal(XStream.java:745)
            at com.thoughtworks.xstream.XStream.marshal(XStream.java:734)
            at com.thoughtworks.xstream.XStream.toXML(XStream.java:715)
            at com.thoughtworks.xstream.XStream.toXML(XStream.java:705)
            ...

            1. Text File
              json_writer_no_npe.patch
              1 kB
              Chris Winters
            2. Java Source File
              XSTR338Test.java
              0.5 kB
              Chris Ingham

              People

              • Assignee:
                Unassigned
                Reporter:
                Chris Ingham
              • Votes:
                1 Vote for this issue
                Watchers:
                2 Start watching this issue

                Dates

                • Created:
                  Updated:
                  Resolved: