- ignore empty pseudo packages (e.g. "class-use" when the Guava Javadoc JAR is in the classpath) - be more lenient in JPype requirement, accept >=1.2.1,<2.0.0
- ignore empty pseudo packages (e.g. "class-use" when the Guava Javadoc JAR is in the classpath) - be more lenient in JPype requirement, accept >=1.2.1,<2.0.0