Should revert to different converter when encountering NotSerializableException using SerializableConverter

Running into this problem with my object tree, which I cannot modify (testing already written code).

The serialization goes up the tree until it encounters a GTKLookAndFeel object. This class extends SynthLookAndFeel which throws a NotSerializableException as part of its writeObject method. The SynthLookAndFeel class comments state:

• This class implements {@link Serializable}

  as a side effect of it

• extending {@link BasicLookAndFeel}

  . It is not intended to be serialized.

• An attempt to serialize it will
• result in {@link NotSerializableException}

  .

While this might not be very clean implementation for SynthLookAndFeel, it shouldn't prevent XStream to serialize the tree using a different converter, instead of the current behavior of throwing a ConversionException.