bash script example for running java classes mac

The invokedynamic support is a compile-time and runtime feature only. In this recipe, we will show how to run Groovy with the invokedynamic (also known as indy) support and Java 7. The new bytecode instruction, invokedynamic, is able to mitigate partially these issues, including support for better JIT optimization. Also, the JIT (Just-In-Time) compiler that helps to improve the runtime performance of a JVM, cannot work its magic by applying optimization to the bytecode because it lacks information and patterns, which are normally possible to optimize. Furthermore, reflection and dynamic proxies are used extensively, which comes with a costly performance toll. Java 7, which allows easier implementation and promises increased speed and efficiency of dynamic languages (for example, Groovy).ĭynamic languages generate a bytecode that often necessitates a number of JVM method invocations to perform a single operation. The invokedynamic is a new JVM instruction available in One of the biggest improvements introduced in Groovy 2.0 is the support for the invokedynamic instruction. Running Groovy with invokedynamic support Using dataflow variables for lazy evaluation.Using actors to build message-based concurrency.Running tasks in parallel and asynchronously.Splitting a large task into smaller parallel jobs.

DSL for generating reports from logfiles.

Dynamically extending classes with new methods.

Using basic authentication for web service security.

Issuing a SOAP request and parsing a response.

Issuing a REST request and parsing a response.

Constructing and modifying complex URLs.

Using Groovy to access Apache Cassandra.

Constructing JSON messages with JsonBuilder.

Walking through a directory recursively.

Replacing tabs with spaces in a text file.

Adding automatic logging to Groovy classes.

Defining type-checking rules for dynamic code.

Implementing multiple inheritance in Groovy.

Defining data structures as code in Groovy.

Inheriting constructors in Groovy classes.

Writing less verbose Java Beans with Groovy Beans.

Searching strings with regular expressions.

Generating documentation for Groovy code.

Starting groov圜onsole to execute Groovy snippets.

Using groovysh to try out Groovy commands.

Managing multiple Groovy installations on Linux.

Running Groovy with invokedynamic support.

Using Groovy as a command-line text file editor.

Executing Groovy code from the command line.

Bash script example for running java classes mac