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Core Java® Volume II—Advanced Features, Ninth Edition by Gary Cornell, Cay S. Horstmann

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10.2. The Compiler API

In the preceding sections, you saw how to interact with code in a scripting language. Now we turn to a different scenario: Java programs that compile Java code. There are quite a few tools that need to invoke the Java compiler, such as:

• Development environments

• Java teaching and tutoring programs

• Build and test automation tools

• Templating tools that process snippets of Java code, such as JavaServer Pages (JSP)

In the past, applications invoked the Java compiler by calling undocumented classes in the jdk/lib/tools.jar library. As of Java SE 6, a public API for compilation is a part of the Java platform, and it is no longer necessary to use tools.jar. This section explains the compiler API.

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