i2psnark:

- Return partial piece to coordinator after reject
   - Fix tracking of downloaded portion of piece after reject
   - Send reject on receipt of bad request
   - Mark piece unrequested after receiving bad data, so it
     will be requested again, but not from the same peer
   - Fix NPE in Request constructor on error
   - Fix stuck before completion due to reject handling (ticket #1633)

apps/i2psnark/java/src/org/klomp/snark/BitField.java

@@ -107,6 +107,27 @@ public class BitField
     }
   }
 
+  /**
+   * Sets the given bit to false.
+   *
+   * @exception IndexOutOfBoundsException if bit is smaller then zero
+   * bigger then size (inclusive).
+   * @since 0.9.22
+   */
+  public void clear(int bit)
+  {
+    if (bit < 0 || bit >= size)
+      throw new IndexOutOfBoundsException(Integer.toString(bit));
+    int index = bit/8;
+    int mask = 128 >> (bit % 8);
+    synchronized(this) {
+        if ((bitfield[index] & mask) != 0) {
+            count--;
+            bitfield[index] &= ~mask;
+        }
+    }
+  }
+
   /**
    * Sets all bits to true.
    *