|  | A few parts of the Checker Framework have more permissive licenses. | 
|  |  | 
|  | * The annotations are licensed under the MIT License.  (The text of this | 
|  | license appears below.)  More specifically, all the parts of the Checker | 
|  | Framework that you might want to include with your own program use the | 
|  | MIT License.  This is the checker-qual.jar file and all the files that | 
|  | appear in it:  every file in a qual/ directory, plus utility files such | 
|  | as NullnessUtil.java, RegexUtil.java, SignednessUtil.java, etc. | 
|  | In addition, the cleanroom implementations of third-party annotations, | 
|  | which the Checker Framework recognizes as aliases for its own | 
|  | annotations, are licensed under the MIT License. | 
|  |  | 
|  | =========================================================================== | 
|  |  | 
|  | MIT License: | 
|  |  | 
|  | Permission is hereby granted, free of charge, to any person obtaining a copy | 
|  | of this software and associated documentation files (the "Software"), to deal | 
|  | in the Software without restriction, including without limitation the rights | 
|  | to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | 
|  | copies of the Software, and to permit persons to whom the Software is | 
|  | furnished to do so, subject to the following conditions: | 
|  |  | 
|  | The above copyright notice and this permission notice shall be included in | 
|  | all copies or substantial portions of the Software. | 
|  |  | 
|  | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | 
|  | IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | 
|  | FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE | 
|  | AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | 
|  | LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | 
|  | OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN | 
|  | THE SOFTWARE. | 
|  |  | 
|  | =========================================================================== |