unexplainable result

[vitesse wei]

code:
class test {
public static void main(String[] args) {
test inst_test = new test();
int i1 = 2000;
int i2 = 2000;
int i3 = 2;
int i4 = 2;
inst_test.method( i3 , i4 );//1
inst_test.method( i1 , i2 );//2
}
public void method( Integer i , Integer eye ) {
System.out.println(i == eye );
}
}


why line 1 prints true and line 2 prints false?

[marc weber]

JLS - 5.1.7 Boxing Conversion...

If the value p being boxed is true, false, a byte, a char in the range \u0000 to \u007f, or an int or short number between -128 and 127, then let r1 and r2 be the results of any two boxing conversions of p. It is always the case that r1 == r2.