private Object instantiateUsingSerialization()

in xstream/src/java/com/thoughtworks/xstream/converters/reflection/PureJavaReflectionProvider.java [102:148]
46 lines of code
7 McCabe index (conditional complexity)

    private Object instantiateUsingSerialization(final Class<?> type) {
        ObjectAccessException oaex = null;
        try {
            if (Reflections.newInstance != null) {
                final ObjectStreamClass osClass = objectStreamClassCache
                    .computeIfAbsent(type, t -> ObjectStreamClass.lookup(type));
                return Reflections.newInstance.invoke(osClass);
            }
            final byte[] data = serializedDataCache.computeIfAbsent(type, t -> {
                final ByteArrayOutputStream bytes = new ByteArrayOutputStream();
                final DataOutputStream stream = new DataOutputStream(bytes);
                try {
                    stream.writeShort(ObjectStreamConstants.STREAM_MAGIC);
                    stream.writeShort(ObjectStreamConstants.STREAM_VERSION);
                    stream.writeByte(ObjectStreamConstants.TC_OBJECT);
                    stream.writeByte(ObjectStreamConstants.TC_CLASSDESC);
                    stream.writeUTF(t.getName());
                    stream.writeLong(ObjectStreamClass.lookup(t).getSerialVersionUID());
                    stream.writeByte(2); // classDescFlags (2 = Serializable)
                    stream.writeShort(0); // field count
                    stream.writeByte(ObjectStreamConstants.TC_ENDBLOCKDATA);
                    stream.writeByte(ObjectStreamConstants.TC_NULL);
                } catch (final IOException e) {
                    throw new ObjectAccessException("Cannot prepare data to create type by JDK serialization", e);
                }
                return bytes.toByteArray();
            });

            final ObjectInputStream in = new ObjectInputStream(new ByteArrayInputStream(data)) {
                @Override
                protected Class<?> resolveClass(final ObjectStreamClass desc) throws ClassNotFoundException {
                    return Class.forName(desc.getName(), false, type.getClassLoader());
                }
            };
            return in.readObject();
        } catch (final ObjectAccessException e) {
            oaex = e;
        } catch (final IOException e) {
            oaex = new ObjectAccessException("Cannot create type by JDK serialization", e);
        } catch (final ClassNotFoundException e) {
            oaex = new ObjectAccessException("Cannot find class", e);
        } catch (IllegalAccessException | IllegalArgumentException | InvocationTargetException e) {
            oaex = new ObjectAccessException("Cannot create type by JDK object stream data", e);
        }
        oaex.add("construction-type", type.getName());
        throw oaex;
    }