- Throw an IllegalArgumentException from the constructor if   length argument is less than or equal to zero
- Throw an IllegalArgumentException from the constructor if
  length argument is less than or equal to zero

git-svn-id: 526f3b90ad6d9b1dfe840af828070ca3d99521ac@12985 d2cacbed-c0f6-0310-851a-9dad52fc623a

johannes85/core