obtained gcc-4.6.4.tar.bz2 from upstream website;upstream

verified gcc-4.6.4.tar.bz2.sig;
imported gcc-4.6.4 source tree from verified upstream tarball.

downloading a git-generated archive based on the 'upstream' tag
should provide you with a source tree that is binary identical
to the one extracted from the above tarball.

if you have obtained the source via the command 'git clone',
however, do note that line-endings of files in your working
directory might differ from line-endings of the respective
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1 files changed, 177 insertions, 0 deletions

diff --git a/libjava/classpath/gnu/java/beans/decoder/MethodFinder.java b/libjava/classpath/gnu/java/beans/decoder/MethodFinder.java
new file mode 100644
index 000000000..82783fbde
--- /dev/null
+++ b/libjava/classpath/gnu/java/beans/decoder/MethodFinder.java
@@ -0,0 +1,177 @@
+/* gnu.java.beans.decoder.MethodFinder
+   Copyright (C) 2004 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 gnu.java.beans.decoder;
+
+import java.lang.reflect.Constructor;
+import java.lang.reflect.Method;
+import java.util.HashMap;
+
+class MethodFinder
+{
+        /** Provides a mapping between a wrapper class and its corresponding primitive's type. */
+        private static HashMap typeMapping = new HashMap();
+
+        static {
+                typeMapping.put(Byte.class, Byte.TYPE);
+                typeMapping.put(Short.class, Short.TYPE);
+                typeMapping.put(Integer.class, Integer.TYPE);
+                typeMapping.put(Long.class, Long.TYPE);
+                typeMapping.put(Float.class, Float.TYPE);
+                typeMapping.put(Double.class, Double.TYPE);
+
+                typeMapping.put(Character.class, Character.TYPE);
+                typeMapping.put(Boolean.class, Boolean.TYPE);
+        }
+
+        private MethodFinder()
+        {
+        }
+
+        /** Searches a Method which can accept the given arguments.
+         *
+         * @param klass
+         * @param name
+         * @param arguments
+         * @return
+         * @throws NoSuchMethodException
+         */
+        static Method getMethod(Class klass, String name, Object[] arguments)
+                throws NoSuchMethodException
+        {
+                // prepares array containing the types of the arguments
+                Class[] argumentTypes = getArgumentTypes(arguments);
+
+                Method[] methods = klass.getMethods();
+
+                // iterates over all public methods
+                for (int i = 0; i < methods.length; i++)
+                {
+                        if (methods[i].getName().equals(name))
+                        {
+                                if (matchingArgumentTypes(methods[i].getParameterTypes(),
+                                        argumentTypes))
+                                        return methods[i];
+                        }
+                }
+
+                throw new NoSuchMethodException(
+                        "Could not find a matching method named "
+                                + name
+                                + "() in class "
+                                + klass);
+        }
+
+        static Constructor getConstructor(Class klass, Object[] arguments)
+                throws NoSuchMethodException
+        {
+                Class[] argumentTypes = getArgumentTypes(arguments);
+                Constructor[] constructors = klass.getConstructors();
+
+                // iterates over all public methods
+                for (int i = 0; i < constructors.length; i++)
+                {
+                        if (matchingArgumentTypes(constructors[i].getParameterTypes(),
+                                argumentTypes))
+                                return constructors[i];
+                }
+
+                throw new NoSuchMethodException(
+                        "Could not find a matching constructor in class " + klass);
+        }
+
+        /** Transforms an array of argument objects into an array of argument types.
+         * For each argument being null the argument is null, too. An argument type
+         * being null means: Accepts everything (although this can be ambigous).
+         *
+         * @param arguments
+         * @return
+         */
+        private static Class[] getArgumentTypes(Object[] arguments)
+        {
+                if (arguments == null)
+                        return new Class[0];
+
+                // prepares array containing the types of the arguments
+                Class[] argumentTypes = new Class[arguments.length];
+                for (int i = 0; i < arguments.length; i++)
+                        argumentTypes[i] =
+                                (arguments[i] == null) ? null : arguments[i].getClass();
+                return argumentTypes;
+        }
+
+        /** Tests whether the argument types supplied to the method argument types
+         * are assignable. In addition to the assignment specifications this method
+         * handles the primitive's wrapper classes as if they were of their
+         * primitive type (e.g Boolean.class equals Boolean.TYPE).
+         * When a supplied argument type is null it is assumed that no argument
+         * object was supplied for it and the test for this particular parameter will
+         * pass.
+         *
+         * @param methodArgTypes
+         * @param suppliedArgTypes
+         * @return
+         */
+        private static boolean matchingArgumentTypes(
+                Class[] methodArgTypes,
+                Class[] suppliedArgTypes)
+        {
+                if (methodArgTypes.length != suppliedArgTypes.length)
+                        return false;
+
+                for (int i = 0; i < methodArgTypes.length; i++)
+                {
+                        if (suppliedArgTypes[i] == null)
+                        {
+                                // by definition a non-existant argument type (null) can be converted to everything
+                                continue;
+                        }
+                        else if (typeMapping.containsKey(suppliedArgTypes[i]))
+                        {
+                                Class primitiveType =
+                                        (Class) typeMapping.get(suppliedArgTypes[i]);
+                                if (!(methodArgTypes[i].isAssignableFrom(suppliedArgTypes[i])
+                                        || methodArgTypes[i].isAssignableFrom(primitiveType)))
+                                        return false;
+                        }
+                        else if (!methodArgTypes[i].isAssignableFrom(suppliedArgTypes[i]))
+                                return false;
+                }
+
+                return true;
+        }
+}