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293 lines
6.8 KiB
Plaintext
293 lines
6.8 KiB
Plaintext
/*
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* Copyright 2009 The Closure Compiler Authors.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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//
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// Contents
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//
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The Closure Compiler performs checking, instrumentation, and
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optimizations on JavaScript code. The purpose of this README is to
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explain how to build and run the Closure Compiler.
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The Closure Compiler requires Java 6 or higher.
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http://www.java.com/
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//
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// Building The Closure Compiler
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//
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There are three ways to get a Closure Compiler executable.
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1) Use one we built for you.
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Pre-built Closure binaries can be found at
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http://code.google.com/p/closure-compiler/downloads/list
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2) Check out the source and build it with Apache Ant.
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First, check out the full source tree of the Closure Compiler. There
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are instructions on how to do this at the project site.
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http://code.google.com/p/closure-compiler/source/checkout
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Apache Ant is a cross-platform build tool.
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http://ant.apache.org/
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At the root of the source tree, there is an Ant file named
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build.xml. To use it, navigate to the same directory and type the
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command
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ant jar
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This will produce a jar file called "build/compiler.jar".
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3) Check out the source and build it with Eclipse.
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Eclipse is a cross-platform IDE.
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http://www.eclipse.org/
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Under Eclipse's File menu, click "New > Project ..." and create a
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"Java Project." You will see an options screen. Give the project a
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name, select "Create project from existing source," and choose the
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root of the checked-out source tree as the existing directory. Verify
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that you are using JRE version 6 or higher.
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Eclipse can use the build.xml file to discover rules. When you
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navigate to the build.xml file, you will see all the build rules in
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the "Outline" pane. Run the "jar" rule to build the compiler in
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build/compiler.jar.
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//
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// Running The Closure Compiler
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//
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Once you have the jar binary, running the Closure Compiler is straightforward.
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On the command line, type
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java -jar compiler.jar
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This starts the compiler in interactive mode. Type
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var x = 17 + 25;
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then hit "Enter", then hit "Ctrl-Z" (on Windows) or "Ctrl-D" (on Mac or Linux)
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and "Enter" again. The Compiler will respond:
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var x=42;
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The Closure Compiler has many options for reading input from a file,
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writing output to a file, checking your code, and running
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optimizations. To learn more, type
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java -jar compiler.jar --help
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You can read more detailed documentation about the many flags at
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http://code.google.com/closure/compiler/docs/gettingstarted_app.html
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//
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// Compiling Multiple Scripts
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//
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If you have multiple scripts, you should compile them all together with
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one compile command.
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java -jar compiler.jar --js=in1.js --js=in2.js ... --js_output_file=out.js
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The Closure Compiler will concatenate the files in the order they're
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passed at the command line.
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If you need to compile many, many scripts together, you may start to
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run into problems with managing dependencies between scripts. You
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should check out the Closure Library. It contains functions for
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enforcing dependencies between scripts, and a tool called calcdeps.py
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that knows how to give scripts to the Closure Compiler in the right
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order.
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http://code.google.com/p/closure-library/
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//
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// Licensing
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//
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Unless otherwise stated, all source files are licensed under
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the Apache License, Version 2.0.
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-----
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Code under:
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src/com/google/javascript/rhino
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test/com/google/javascript/rhino
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URL: http://www.mozilla.org/rhino
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Version: 1.5R3, with heavy modifications
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License: Netscape Public License and MPL / GPL dual license
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Description: A partial copy of Mozilla Rhino. Mozilla Rhino is an
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implementation of JavaScript for the JVM. The JavaScript parser and
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the parse tree data structures were extracted and modified
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significantly for use by Google's JavaScript compiler.
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Local Modifications: The packages have been renamespaced. All code not
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relevant to parsing has been removed. A JsDoc parser and static typing
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system have been added.
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-----
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Code in:
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lib/rhino
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Rhino
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URL: http://www.mozilla.org/rhino
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Version: Trunk
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License: Netscape Public License and MPL / GPL dual license
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Description: Mozilla Rhino is an implementation of JavaScript for the JVM.
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Local Modifications: Minor changes to parsing JSDoc that usually get pushed
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up-stream to Rhino trunk.
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-----
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Code in:
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lib/args4j.jar
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Args4j
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URL: https://args4j.dev.java.net/
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Version: 2.0.16
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License: MIT
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Description:
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args4j is a small Java class library that makes it easy to parse command line
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options/arguments in your CUI application.
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Local Modifications: None.
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-----
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Code in:
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lib/guava.jar
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Guava Libraries
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URL: http://code.google.com/p/guava-libraries/
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Version: 15.0
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License: Apache License 2.0
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Description: Google's core Java libraries.
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Local Modifications: None.
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-----
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Code in:
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lib/jsr305.jar
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Annotations for software defect detection
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URL: http://code.google.com/p/jsr-305/
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Version: svn revision 47
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License: BSD License
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Description: Annotations for software defect detection.
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Local Modifications: None.
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-----
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Code in:
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lib/jarjar.jar
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Jar Jar Links
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URL: http://jarjar.googlecode.com/
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Version: 1.1
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License: Apache License 2.0
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Description:
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A utility for repackaging Java libraries.
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Local Modifications: None.
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----
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Code in:
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lib/junit.jar
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JUnit
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URL: http://sourceforge.net/projects/junit/
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Version: 4.10
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License: Common Public License 1.0
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Description: A framework for writing and running automated tests in Java.
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Local Modifications: None.
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---
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Code in:
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lib/protobuf-java.jar
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Protocol Buffers
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URL: http://code.google.com/p/protobuf/
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Version: 2.4.1
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License: New BSD License
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Description: Supporting libraries for protocol buffers,
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an encoding of structured data.
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Local Modifications: None
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---
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Code in:
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lib/ant.jar
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lib/ant-launcher.jar
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URL: http://ant.apache.org/bindownload.cgi
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Version: 1.8.1
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License: Apache License 2.0
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Description:
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Ant is a Java based build tool. In theory it is kind of like "make"
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without make's wrinkles and with the full portability of pure java code.
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Local Modifications: None
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---
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Code in:
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lib/json.jar
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URL: http://json.org/java/index.html
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Version: JSON version 20090211
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License: MIT license
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Description:
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JSON is a set of java files for use in transmitting data in JSON format.
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Local Modifications: None
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---
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Code in:
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tools/maven-ant-tasks-2.1.3.jar
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URL: http://maven.apache.org
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Version 2.1.3
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License: Apache License 2.0
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Description:
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Maven Ant tasks are used to manage dependencies and to install/deploy to
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maven repositories.
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Local Modifications: None
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