Returns whether or not the current JVM configuration supports redefinition
The ability to redefine an already loaded class is an optional capability
of a JVM.
Redefinition will only be supported if the
Can-Redefine-Classes manifest attribute is set to
true in the agent JAR file (as described in the
package specification) and the JVM supports
During a single instantiation of a single JVM, multiple calls to this
method will always return the same answer.