schedule Aug 26th 02:15 PM - 03:00 PM place Sigma Hall 1 people 5 Attending

To exploit the cross platform nature and powerfulness of the  JVM, most of the nonJava programming languages (python, ruby, clojure etc) had ported themselves to run on JVM. But performance of these nonJava languages were poor compared to their nonJVM version. Java 7 introduced a new byte code instruction invokedynamic (indy) to support dynamic languages running on the JVM. The invokedynamic instruction simplifies and potentially improves implementations of compilers and runtime systems for dynamic languages on the JVM.  Later in Java 8, indy became the backbone of the Java 8's most popular feature lambda expression.

 

 

 

 
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Outline/structure of the Session

In this talk,  I am planning to cover

1.  Byte code level details about existing 4 method invocation (prior to java 7)

2.  Why existing method invocations can not use for Dynamic Language (DL) ?

3.  How reflection was using for DL ?

4.  Performance overhead of reflection

5.  Need of new method invocation

6.  How MethodHandle solves problems of reflection ?

7Details of indy

Learning Outcome

Method invocation  byte code level details, reflection disadvantages, intro to indy

Target Audience

Anyone who loves to know the internals of java

schedule Submitted 1 year ago

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