[rules-users] simple subtraction in drools 5.3 fires rules

[oranoh]

I have a simple class

public class Dummy {
	
	private int x1, x2, y1, y2;	
	public Dummy(int x1, int y1, int x2, int y2) {
		this.x1 = x1;
		this.y1 = y1;
		this.x2 = x2;
		this.y2 = y2;
	}
	public int getX1() {
		return x1;
	}
	public int getX2() {
		return x2;
	}
	public int getX2M150() {
		return x2-150;
	}
	public int getY1() {
		return y1;
	}
	public int getY2() {
		return y2;
	}	
}

And a the following Rule:

rule "DummyRule"
ruleflow-group "DummyTest"
  when
        d1 : Dummy()        
        d2 : Dummy(y2 == d1.y1, (x1 == (d1.x2 -150) || x2 == (d1.x2 -150)))        
    then         		
        System.out.println("Rule DummyTest fired");                  
end

Executing the rule with the following Data - The Rule fires !!! - WRONG

Dummy d1 = new Dummy(-1050,  -900, -750, -600);
Dummy d2 = new Dummy(-1050, -1200, -750, -900);

When I modify the Rule the follow way

rule "DummyRule"
ruleflow-group "DummyTest"
  when
        d1 : Dummy()        
        d2 : Dummy(y2 == d1.y1, (x1 == d1.x2M150 || x2 == d1.x2M150))     
    then         		
        System.out.println("Rule DummyTest fired");                  
end


with the same Data - The Rule fires not !!!! - What is CORRECT


This problem comes up, when I move from drools 5.01 to 5.3

Can anybody help ?





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