Can I legally Incorporating GPL & LGPL, open-sourced software in a proprietary, closed-source project?
The company I work for develop and sell a proprietary, closed-source software application.
Our application uses third party open-source projects licensed under the GPL and LGPL licenses. For instance, we use [Hibernate][1] as an ORM.

Sometimes we modify and build upon these third party projects.

What is required of us to not be in violation of the GPL and LGPL licenses when it comes to selling and distributing our closed-source application?


  [1]: http://www.hibernate.org/
Can I legally Incorporating GPL & LGPL, open-sourced software in a proprietary, closed-source project?
===

The company I work for develop and sell a proprietary, closed-source software application.
Our application uses third party open-source projects licensed under the GPL and LGPL licenses. For instance, we use [Hibernate][1] as an ORM.

Sometimes we modify and build upon these third party projects.

What is required of us to not be in violation of the GPL and LGPL licenses when it comes to selling and distributing our closed-source application?


  [1]: http://www.hibernate.org/