Java Security Manager - What does it check?

Question

This article about Java security says:

Code in the Java library consults the Security Manager whenever a dangerous operation is about to be attempted.

Answer 1

Using security manager you could control access to :

1. File operations
2. Reflection facility
3. Read/Write IO
4. Thread/Thread group operations
5. Socket operations(listen, accept etc.)
6. Power to create your own classloader.

For each such thing there is a check*() method in SecurityManager

For an exhaustive list check the constants in SecurityConstants