Multiple instances of static variables

Question

I\'m experimenting with using different classloaders to load a particular class, and see if the static variables in that class can have different instances.

Basically,

Answer 1

I had the same problem (integration tests) and tried it with @Michael Borgwardt approach. Here some example code:

URLClassLoader classLoader1 = new URLClassLoader(new URL[]{new URL("file:///path/to/jar/my-classes.jar")}, null);
URLClassLoader classLoader2 = new URLClassLoader(new URL[]{new URL("file:///path/to/jar/my-classes.jar")}, null);

// Load with classLoader1
Class myClass1 = classLoader1.loadClass("MyClass");
Constructor constructor1 = myClass1.getConstructor();
Object instance1 = constructor1.newInstance();

// Load with classLoader2
Class myClass2 = classLoader2.loadClass("MyClass");
Constructor constructor2 = myClass2.getConstructor();
Object instance2 = constructor2.newInstance();

// Load with system classloader
MyClass myClass = new MyClass();

// ...