src/share/classes/javax/tools/package-info.java

Thu, 31 Aug 2017 15:17:03 +0800

author
aoqi
date
Thu, 31 Aug 2017 15:17:03 +0800
changeset 2525
2eb010b6cb22
parent 554
9d9f26857129
parent 0
959103a6100f
permissions
-rw-r--r--

merge

aoqi@0 1 /*
aoqi@0 2 * Copyright (c) 2005, 2006, Oracle and/or its affiliates. All rights reserved.
aoqi@0 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
aoqi@0 4 *
aoqi@0 5 * This code is free software; you can redistribute it and/or modify it
aoqi@0 6 * under the terms of the GNU General Public License version 2 only, as
aoqi@0 7 * published by the Free Software Foundation. Oracle designates this
aoqi@0 8 * particular file as subject to the "Classpath" exception as provided
aoqi@0 9 * by Oracle in the LICENSE file that accompanied this code.
aoqi@0 10 *
aoqi@0 11 * This code is distributed in the hope that it will be useful, but WITHOUT
aoqi@0 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
aoqi@0 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
aoqi@0 14 * version 2 for more details (a copy is included in the LICENSE file that
aoqi@0 15 * accompanied this code).
aoqi@0 16 *
aoqi@0 17 * You should have received a copy of the GNU General Public License version
aoqi@0 18 * 2 along with this work; if not, write to the Free Software Foundation,
aoqi@0 19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
aoqi@0 20 *
aoqi@0 21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
aoqi@0 22 * or visit www.oracle.com if you need additional information or have any
aoqi@0 23 * questions.
aoqi@0 24 */
aoqi@0 25
aoqi@0 26 /**
aoqi@0 27 * Provides interfaces for tools which can be invoked from a program,
aoqi@0 28 * for example, compilers.
aoqi@0 29 *
aoqi@0 30 * <p>These interfaces and classes are required as part of the
aoqi@0 31 * Java&trade; Platform, Standard Edition (Java SE),
aoqi@0 32 * but there is no requirement to provide any tools implementing them.
aoqi@0 33 *
aoqi@0 34 * <p>Unless explicitly allowed, all methods in this package might
aoqi@0 35 * throw a {@linkplain java.lang.NullPointerException} if given a
aoqi@0 36 * {@code null} argument or if given a
aoqi@0 37 * {@linkplain java.lang.Iterable list or collection} containing
aoqi@0 38 * {@code null} elements. Similarly, no method may return
aoqi@0 39 * {@code null} unless explicitly allowed.
aoqi@0 40 *
aoqi@0 41 * <p>This package is the home of the Java programming language compiler framework. This
aoqi@0 42 * framework allows clients of the framework to locate and run
aoqi@0 43 * compilers from programs. The framework also provides Service
aoqi@0 44 * Provider Interfaces (SPI) for structured access to diagnostics
aoqi@0 45 * ({@linkplain javax.tools.DiagnosticListener}) as well as a file
aoqi@0 46 * abstraction for overriding file access ({@linkplain
aoqi@0 47 * javax.tools.JavaFileManager} and {@linkplain
aoqi@0 48 * javax.tools.JavaFileObject}). See {@linkplain
aoqi@0 49 * javax.tools.JavaCompiler} for more details on using the SPI.
aoqi@0 50 *
aoqi@0 51 * <p>There is no requirement for a compiler at runtime. However, if
aoqi@0 52 * a default compiler is provided, it can be located using the
aoqi@0 53 * {@linkplain javax.tools.ToolProvider}, for example:
aoqi@0 54 *
aoqi@0 55 * <p>{@code JavaCompiler compiler = ToolProvider.getSystemJavaCompiler();}
aoqi@0 56 *
aoqi@0 57 * <p>It is possible to provide alternative compilers or tools
aoqi@0 58 * through the {@linkplain java.util.ServiceLoader service provider
aoqi@0 59 * mechanism}.
aoqi@0 60 *
aoqi@0 61 * <p>For example, if {@code com.vendor.VendorJavaCompiler} is a
aoqi@0 62 * provider of the {@code JavaCompiler} tool then its jar file
aoqi@0 63 * would contain the file {@code
aoqi@0 64 * META-INF/services/javax.tools.JavaCompiler}. This file would
aoqi@0 65 * contain the single line:
aoqi@0 66 *
aoqi@0 67 * <p>{@code com.vendor.VendorJavaCompiler}
aoqi@0 68 *
aoqi@0 69 * <p>If the jar file is on the class path, VendorJavaCompiler can be
aoqi@0 70 * located using code like this:
aoqi@0 71 *
aoqi@0 72 * <p>{@code JavaCompiler compiler = ServiceLoader.load(JavaCompiler.class).iterator().next();}
aoqi@0 73 *
aoqi@0 74 * @author Peter von der Ah&eacute;
aoqi@0 75 * @author Jonathan Gibbons
aoqi@0 76 * @since 1.6
aoqi@0 77 */
aoqi@0 78 package javax.tools;

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