A DESCRIPTION OF THE PROBLEM :
We generated a unit test automatically and it failed with dead cycle.

STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
@Test
  public void test_addCharString_1_1(){

      short short1 = 0;
      byte byte2 = 0;
      com.sun.imageio.plugins.common.LZWStringTable lZWStringTable0 = new com.sun.imageio.plugins.common.LZWStringTable();
      lZWStringTable0.addCharString(short1, byte2);

  }

ACTUAL -
dead cycle in LZWStringTable.java:88.
The reason is that ' strHsh[i] != HASH_FREE ' is always true.

---------- BEGIN SOURCE ----------
public int addCharString(short index, byte b) {
        int hshidx;

        if (numStrings >= MAXSTR) { // if used up all codes
            return 0xFFFF;
        }

        hshidx = hash(index, b);
        while (strHsh[hshidx] != HASH_FREE) {
            hshidx = (hshidx + HASHSTEP) % HASHSIZE;
        }

        strHsh[hshidx] = numStrings;
        strChr[numStrings] = b;
        if (index == HASH_FREE) {
            strNxt[numStrings] = NEXT_FIRST;
            strLen[numStrings] = 1;
        } else {
            strNxt[numStrings] = index;
            strLen[numStrings] = strLen[index] + 1;
        }

        return numStrings++; // return the code and inc for next code
    }
---------- END SOURCE ----------

FREQUENCY : occasionally