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+/* Filer.java -- Manages file creation for an annotation processor.
+   Copyright (C) 2012  Free Software Foundation, Inc.
+
+This file is part of GNU Classpath.
+
+GNU Classpath is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2, or (at your option)
+any later version.
+
+GNU Classpath is distributed in the hope that it will be useful, but
+WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with GNU Classpath; see the file COPYING.  If not, write to the
+Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+02110-1301 USA.
+
+Linking this library statically or dynamically with other modules is
+making a combined work based on this library.  Thus, the terms and
+conditions of the GNU General Public License cover the whole
+combination.
+
+As a special exception, the copyright holders of this library give you
+permission to link this library with independent modules to produce an
+executable, regardless of the license terms of these independent
+modules, and to copy and distribute the resulting executable under
+terms of your choice, provided that you also meet, for each linked
+independent module, the terms and conditions of the license of that
+module.  An independent module is a module which is not derived from
+or based on this library.  If you modify this library, you may extend
+this exception to your version of the library, but you are not
+obligated to do so.  If you do not wish to do so, delete this
+exception statement from your version. */
+
+package javax.annotation.processing;
+
+/**
+ * <p>This interface supports the creation of new files by the
+ * annotation processor.  Creating files via this interface means
+ * that they can be tracked by the annotation processing tool.
+ * Once the file streams are closed, the tool will automatically
+ * consider them for processing.</p>
+ * <p>Files are separated into three types: source files, class
+ * files and resource files.  Two locations are defined; one
+ * for source files and one for class files (resource files
+ * may use either).  Locations are specified using a relative
+ * path separated by {@code '/'} and not including the
+ * segments {@code '.'} and {@code '..'} so that they may only
+ * refer to subdirectories.  A valid relative name must match
+ * the "path-rootless" rule of RFC 3986, section 3.3.</p>
+ * <p>The file creation methods take a variable number of
+ * originating elements, which can be used by the tool to
+ * handle dependency management.  For example, if a
+ * file is generated due to the presence of a particular
+ * method, the element representing that method may be
+ * specified as an originating element.  Whether this
+ * information is used by the tool or not is left down
+ * to the implementator.</p>
+ * <p>Each run of the annotation processing tool may only
+ * create a file with a given pathname once.  Attempts
+ * to create the same file a second time will result in
+ * a {@link FilerException}.  The same behaviour results
+ * from trying to overwrite the initial source files, which
+ * are classed as being created in the zeroth round of
+ * processing.  The same exception will be thrown if
+ * the same name is used for both a source file and a
+ * class file.</p>
+ * <p>Processors must not knowingly attempt to overwrite
+ * files that weren't generated by themselves or a similar
+ * tool.  Similarly, the user invoking the tool should
+ * not configure it so that it will end up overwriting
+ * files that weren't generated.  A {@code Filer}
+ * implementation may include safeguards so as not to
+ * overwrite class files such as {@code java.lang.Object}.</p>
+ * <p>The {@link javax.lang.annotation.Generated}
+ * annotation is available to denote generated files
+ * if needed.  Some of the effect of overwriting files may
+ * be achieved by using a decorator-style design
+ * pattern and either a generated superclass or a series
+ * of generated subclasses.  In the latter case,
+ * the class would provide the appropriate generated
+ * subclass via the factory pattern.</p>
+ *
+ * @since 1.6
+ */
+public interface Filer
+{
+}