License DB detects no licenses for majority of Maven packages

Summary

License DB detects no license for the following Maven packages:

• commons-beanutils/commons-beanutils@1.8.3 (Apache-2.0); #385173 (comment 1296990552)
• org.mozilla/rhino@1.7.10 (MPL-2.0); #385173 (comment 1297011652)

There are more of them. Our test project shows that major amount of Maven packages have unknown license.

See #385173 (comment 1297528619)

Possible fixes