java.lang.Class.cast how does it works?
Hi,
i used following code but always get a class cast Exception :-( Maybe i use it in a wrong way, can anybody help me?
Class clazz = getParameterTypes(methodName, instance);
Method method = instance.getClass().getMethod(methodName,new Class[]{ clazz});
method.invoke(instance, clazz.cast(parameter));
public Class getParameterTypes(String methodName, Object instance)
{
Method[] methods = instance.getClass().getMethods();
for (Method method : methods)
{
if(method.getName().equalsIgnoreCase(methodName))
{
return method.getParameterTypes()[0];
}
}
returnnull;
}
Note that "parameter" is always from type String, but sometimes the method which i invoke wants i.e. a value of type Long (or others), so i want to cast it.
In the method "getParameterTypes" i get the correct Type but when i try to do theclazz.cast(parameter) i always get a classcastException.
Anybody an idea how i can make it run, or know a workaround/other solution?
Thanks a lot.
Thomas
