Criticism of Java

The Java programming language and Java software platform have been criticized for design choices including the implementation of generics, forced object-oriented programming, the handling of unsigned numbers, the implementation of floating-point arithmetic, and a history of security vulnerabilities in the primary Java VM implementation, HotSpot. Software written in Java, especially its early versions, has been criticized for its performance compared to software written in other programming languages. Developers have also remarked that differences in various Java implementations must be taken into account when writing complex Java programs that must work with all of them.^[1]

^ Wong, William (27 May 2002). "Write Once, Debug Everywhere". electronicdesign.com. Archived from the original on 21 March 2009. Retrieved 3 August 2008. So far, the "write-once, run-everywhere" promise of Java hasn't come true. The bulk of a Java application will migrate between most Java implementations, but taking advantage of a VM-specific feature causes porting problems.

[1] Wong, William (27 May 2002). "Write Once, Debug Everywhere". electronicdesign.com. Archived from the original on 21 March 2009. Retrieved 3 August 2008. So far, the "write-once, run-everywhere" promise of Java hasn't come true. The bulk of a Java application will migrate between most Java implementations, but taking advantage of a VM-specific feature causes porting problems.

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