}

    @Override
    public HashCode getClassLoaderHash() {
        return null;
    }

    public UnknownReason getUnknownReason() {
        return unknownReason;
    }

    public String getProblemDescription() {
        return String.format(unknownReason.descriptionTemplate, classIdentifier);
    }

                UnknownImplementationSnapshot unknownImplSnapshot = (UnknownImplementationSnapshot) implementationSnapshot;
                encoder.writeSmallInt(unknownImplSnapshot.getUnknownReason().ordinal());
            }
        };

        @Override
        public void write(Encoder encoder, ImplementationSnapshot implementationSnapshot) throws Exception {