JAR files bundled with the v2.1.0 release archive, worldwind.jar and worldwindx.jar, contain the Java sources as well as the compiled class files. This causes each release JAR file to increase in size by about 40%, but has no effect on runtime operation.

World Wind Java's build assembles two types of JAR files:

• Release: includes only the compiled class files
• Debug: includes the compiled class files and the corresponding Java sources

JAR files bundled into all release archives (worldwind-vA.B.C.zip) must contain only the release JAR files. Debug JAR files may be assembled in a local development environment.