MAT outgoing references / incoming references

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MAT

When using MAT analysis object has two important concepts

outgoing references, the object references which objects
incoming references, which objects referenced object

Diagram

Code

public class A {

	private C c1 = C.getInstance();
}

public class B {

	private C c2 = C.getInstance();	
}

publicclass C {

	private static C myC = newC();

	public static C getInstance() {
		returnmyC;
	}

	private D d1 = new D();
	
	private E e1 = new E();	

}

public class D {

}

public class E {

}

public class SimpleExample {

	public static void main (String argsp[]) throws Exception {
	
		A a = new A();
		B b = new B();
	}
} 

FIG Example

Run

jmap -dump:live,format=b,file=3144.bin 3144

Analysis of
the histogram where the input fully qualified class name

selection to give incoming

selected outgoing