All contributions to the DataNucleus Project must adhere to the Apache 2 license. Notwithstanding the above, at the discretion of the PMC, DataNucleus Project downloads may include separately licensed code from third parties as a convenience and where permitted by the third party license, provided this is clearly indicated.

All contributions must contain the following copyright notice.

/**********************************************************************
Copyright (c) 2006 {your name} and others. All rights reserved.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at

    http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.

Contributors:
{year} {contributor1} - {description of contribution}
{year} {contributor2} - {description of contribution}
    ...
**********************************************************************/
            

The original contributor is the one who contributes the first version of the file. A contributor may be a person or an organization - whoever owns the copyright. If the contributor is an organization, the person may also be indicated. For each additional contributor, indicate the part of the code or contribution that came from the contributor, especially if it contains an interesting algorithm or data table etc. For clarity, also indicate the contributor in the actual section of contributed code. Also reference the bug ID if applicable. The basic principle is to clearly identify the contribution... especially if it is a separable block of code.