Groovy - An extensible multi-paradigm language for the JVM Platform
(GroovyDoc for Groovy and Java classes)

Groovy...

• is an extensible and multi-paradigm language for the Java Virtual Machine
• makes modern programming features available to Java developers with almost-zero learning curve
• has a dynamic nature like Python and Ruby, which means that it is very powerful, easy to learn, and productive
• optionally has static typing like Java and Kotlin, which makes it fast and provides extra type checking when desired
• has first-class functional, stream processing and immutability support, meaning that it offers features similar to Scala and can offer many advantages when working in parallel processing or clustered environments
• supports Domain-Specific Languages and other compact syntax so your code becomes easy to read and maintain
• makes writing shell and build scripts easy with its powerful processing primitives, OO abilities and an Ant DSL
• increases developer productivity by reducing scaffolding code when developing web, GUI, database or console applications
• simplifies testing by supporting unit testing and mocking out-of-the-box
• compiles straight to Java bytecode so you can use it anywhere you can use Java; it seamlessly integrates with all existing Java objects and libraries

Packages

Package	Description
groovy.beans
groovy.cli
groovy.grape
groovy.inspect	Classes for inspecting object properties through introspection.
groovy.io	Classes for Groovier Input/Output.
groovy.lang	Core Groovy language classes for implementing data structures, closures, metadata and so forth.
groovy.lang.groovydoc
groovy.namespace
groovy.security	Security-related classes
groovy.time	Classes for easily manipulating Dates and times.
groovy.transform
groovy.transform.builder
groovy.transform.options
groovy.transform.stc
groovy.ui
groovy.util	Various Groovy utilities for working with nodes, builders, logging, and other things.
groovy.util.logging
groovy.xml
org.apache.groovy.antlr
org.apache.groovy.ast.tools
org.apache.groovy.internal.metaclass
org.apache.groovy.internal.util
org.apache.groovy.io
org.apache.groovy.lang.annotation
org.apache.groovy.metaclass
org.apache.groovy.parser.antlr4
org.apache.groovy.parser.antlr4.internal
org.apache.groovy.parser.antlr4.internal.atnmanager
org.apache.groovy.parser.antlr4.util
org.apache.groovy.plugin
org.apache.groovy.util
org.apache.groovy.util.concurrent
org.apache.groovy.util.concurrent.concurrentlinkedhashmap	This package contains an implementation of a bounded ConcurrentMap data structure.
org.codehaus.groovy	Groovy Language for the JVM
org.codehaus.groovy.antlr	Parser related classes.
org.codehaus.groovy.antlr.java
org.codehaus.groovy.antlr.parser
org.codehaus.groovy.antlr.treewalker	Classes for walking the AST.
org.codehaus.groovy.ast	Groovy AST nodes for the syntax of the language
org.codehaus.groovy.ast.builder
org.codehaus.groovy.ast.decompiled
org.codehaus.groovy.ast.expr	AST nodes for Groovy expressions
org.codehaus.groovy.ast.stmt	AST nodes for Groovy statements
org.codehaus.groovy.ast.tools
org.codehaus.groovy.classgen	Generates Java classes for Groovy classes using ASM.
org.codehaus.groovy.classgen.asm	Helper classes for ASMClassGenerator.
org.codehaus.groovy.classgen.asm.indy
org.codehaus.groovy.classgen.asm.indy.sc
org.codehaus.groovy.classgen.asm.sc
org.codehaus.groovy.classgen.asm.util
org.codehaus.groovy.control	Compiler control classes.
org.codehaus.groovy.control.customizers
org.codehaus.groovy.control.customizers.builder
org.codehaus.groovy.control.io	Internal classes for Groovier Input/Output.
org.codehaus.groovy.control.messages	Error message classes.
org.codehaus.groovy.plugin
org.codehaus.groovy.reflection	Internal classes for assisting with reflection.
org.codehaus.groovy.reflection.android
org.codehaus.groovy.reflection.stdclasses
org.codehaus.groovy.reflection.v7
org.codehaus.groovy.runtime	Runtime classes for Groovy - whether the dynamic interpreter is being used, the compiler or the bytecode generator.
org.codehaus.groovy.runtime.callsite
org.codehaus.groovy.runtime.dgmimpl
org.codehaus.groovy.runtime.dgmimpl.arrays
org.codehaus.groovy.runtime.m12n
org.codehaus.groovy.runtime.memoize
org.codehaus.groovy.runtime.metaclass	Internal classes related to Groovy's metaclass implementation.
org.codehaus.groovy.runtime.powerassert
org.codehaus.groovy.runtime.typehandling	Classes used to execute special actions based on the type.
org.codehaus.groovy.runtime.wrappers	Groovy wrapper classes for primitive types.
org.codehaus.groovy.syntax	Lexer, parser and trees.
org.codehaus.groovy.tools	Compiler entry points and miscellaneous development tools.
org.codehaus.groovy.tools.gse
org.codehaus.groovy.tools.javac	Classes related to the joint compiler.
org.codehaus.groovy.tools.shell
org.codehaus.groovy.tools.shell.util
org.codehaus.groovy.transform
org.codehaus.groovy.transform.sc
org.codehaus.groovy.transform.sc.transformers
org.codehaus.groovy.transform.stc
org.codehaus.groovy.transform.trait
org.codehaus.groovy.util
org.codehaus.groovy.vmplugin	JVM version specific classes.
org.codehaus.groovy.vmplugin.v5	Java 5 specific classes.
org.codehaus.groovy.vmplugin.v6
org.codehaus.groovy.vmplugin.v7
org.codehaus.groovy.vmplugin.v8
org.codehaus.groovy.vmplugin.v9