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What's the difference between eager and lazy download?
- Eager downloading means Java Web Start (JWS) tries to download what it needs before the application begins.
- Lazy downloading means JWS delays certain downloads that are marked "lazy" until the application actually needs them.

- Eager downloading causes the user to wait for the application to start until all "eager" resources are downloaded.
- Lazy downloading may cause the application to freeze periodically while JWS retrieves the needed resources from the network.

Even if you mark certain jars or libs for lazy download the JWS client can still choose to download them eagerly.


Further Information
Author of answer: Andrew Wilcox

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