Real-World Java Seminar - Skilled Listening in Java

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There are many good resources on using events and implementing event listeners. Unfortunately, there are nearly as many resources that incorrectly or inefficiently implement event generators. These implementations introduce subtle nondeterministic errors, execute slowly, and/or fill the virtual machine with unnecessary garbage. The goal of this article is to address this problem once and for all - as a pattern and code generator for JDKs before 1.5, and as a set of generic types in JDK 1.5 and later.

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