3sumclosest

I have checked my code on eclipse IDE and in the Leet Debugger . After submitting my finished code I get an Wrong Prompted for a testcase.But my code passes the test when run in Debug mode.
This Issue is preventing my code To get submitted into Leet.This is a Bug.I tried several times but after wasting ample of time have to post this issue.

class Solution {
static List lst=new ArrayList();
static int target=3;
int closest=0;
public int threeSumClosest(int[] nums, int target) {
combinations2(nums,3,0,new int[3]);

    for(int i:lst) {
    	if(Math.abs(target-i)==0) {
            System.out.println(i);
    		return i;
    	}else {
    		if(closest == 0 ) {
    			closest= i;
    		}else {
    			if(closest>i)
    				closest=i;
    	   }
    }
    }
    System.out.println(closest);
   return closest;
}
 static void combinations2(int[] arr, int len, int startPosition, int[] result){
    if (len == 0){
    	int sum=0;
    	for(int i : result)
    		sum=sum+i;
    	 
     	lst.add(sum);
        //System.out.println(Arrays.toString(result));
        return;
    }       
    for (int i = startPosition; i <= arr.length-len; i++){
        result[result.length - len] = arr[i];
        combinations2(arr, len-1, i+1, result);
    }
}

}

This Solution is in JAVA.

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