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Chapter 3. alt-java and java uses
Depending on your needs, you can use either the alt-java binary or the java binary to run your application’s code.
3.1. alt-java usage
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Use alt-java for any applications that run untrusted code. Be aware that using alt-java is not a solution to all speculative execution vulnerabilities.
3.2. java usage
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Use the java binary for performance-critical tasks in a secure environment. Most RPMs in a Red Hat Enterprise Linux system use the java binary, except for IcedTea-Web. IcedTea-Web uses alt-java as its launcher, so you can use IcedTea-Web to run untrusted code.
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