The whole bundled package is free of charge, dual licensed under GPL and MIT.

整个源代码压缩包是完全免费的，许可发布遵循GPL和MIT。

youdao

Shoal is dual licensed under the CDDL version 1.0 and GPL v2 license with Classpath Exception.

Shoal是双重许可的：基于CDDL1.0和GPL v2协议（除了类路径）。

youdao

The product is dual licensed with a limited version offered under GPL version 2 and a more comprehensive product offered via a commercial license.

该产品具有双重许可：有限功能版遵循gpl版本2许可协议，而更全面的产品则按商业许可提供。

youdao

On the other hand if the data had been dual licensed to the OSM Foundation or me personally then we could have switched the license much more quickly.

FORBES: Why OpenStreetMap Dropped the Creative Commons License