@Override
public <T> T defaultInstanceFor(Class<T> c)
throws NoSuchMethodException, InstantiationException, IllegalAccessException,
InvocationTargetException {
final Object cached = cachedDefCtors.get(c);
if (cached != null) {
if (cached.getClass() == Constructor.class) {
return ((Constructor<T>) cached).newInstance();
}
if (cached.getClass() == NoSuchMethodException.class) {
throw (NoSuchMethodException) cached;
}
if (cached.getClass() == InstantiationException.class) {
throw (InstantiationException) cached;
}
if (cached.getClass() == InvocationTargetException.class) {
throw (InvocationTargetException) cached;
}
if (cached.getClass() == IllegalAccessException.class) {
throw (IllegalAccessException) cached;
}
}
try {
final Constructor<T> ctor = ReflectionUtil.defaultConstructor(c);
T ret = ctor.newInstance();
cachedDefCtors.putIfAbsent(c, ctor);
return ret;
} catch (NoSuchMethodException
| InstantiationException
| InvocationTargetException
| IllegalAccessException noDefCtorX) {
cachedDefCtors.putIfAbsent(c, noDefCtorX);
throw noDefCtorX;
}
}
