Groovy JSR: A New Era for Java?

Posted by timothy on Tuesday March 16, 2004 @12:13PM from the coffee's-always-been-there dept.

fastdecade writes "Groovy, the open-source scripting language, has been submitted for a Java Specification Request (JSR). And not without strong support from venerable J2EE practitioner/author, Richard Monson-Haefel, who labels this "the beginning of a new era in the Java platform". Groovy can use Java objects easily and compiles to JVM byte code, but it is nonetheless a scripting language at heart and a great companion for the more heavyweight Java programming language. Most JSRs concern new APIs, and this is the first JSR for an alternative language. Imagine a common platform of standardised languages talking to each other ... this looms as a big threat to .Net and a rejuvenation of the Java platform."

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Re:Scripting with .NET by iebgener · 2004-03-16 13:32 · Score: 5, Informative

In Java, you can't unload code/type from the classpath (core classes you had when you started java) but if the class comes from a different classloader (created at runtime), you can do pretty much what you want... if you own the classloader...

The only limitation is that the class must not be on the classpath (for security reason). This is also how you can have the same class but with different version on the same VM.

See : http://java.sun.com/j2se/1.4.2/docs/api/java/lang/ ClassLoader.html