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This noncompliant example shows a leaking vector object. This quickly exhausts the heap space as the programmer has mistakenly written the condition for removing the vector element as n>0 instead of n>=0. As a result, in every iteration the method leaks one vector element.
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import java.util.Vector;
import java.io.IOException;
public class Leak {
static Vector vector = new Vector();
public void leakingVector(int count) {
for (int n=0; n<count; n++) {
vector.add(Integer.toString(n));
}
for (int n=count-1; n>0; n--) { //free the memory
vector.removeElementAt(n);
}
}
public static void main(String[] args) throws IOException {
Leak le = new Leak();
int i = 1;
while(true) {
System.out.println("Iteration: " + i);
le.leakingVector(1);
i++;
}
}
}
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