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authorupstream source tree <ports@midipix.org>2015-03-15 20:14:05 -0400
committerupstream source tree <ports@midipix.org>2015-03-15 20:14:05 -0400
commit554fd8c5195424bdbcabf5de30fdc183aba391bd (patch)
tree976dc5ab7fddf506dadce60ae936f43f58787092 /libjava/classpath/java/lang/reflect/UndeclaredThrowableException.java
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+/* UndeclaredThrowableException.java -- wraps an undeclared checked exception
+ thrown by a Proxy invocation handler
+ Copyright (C) 2001, 2002, 2005 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 java.lang.reflect;
+
+/**
+ * This exception class is thrown by a {@link Proxy} instance if
+ * the {@link InvocationHandler#invoke(Object, Method, Object[]) invoke}
+ * method of that instance's InvocationHandler attempts to throw an
+ * exception that not declared by the throws clauses of all of the
+ * interface methods that the proxy instance is implementing.
+ *
+ * <p>When thrown by Proxy, this class will always wrap a checked
+ * exception, never {@link Error} or {@link RuntimeException},
+ * which are unchecked.
+ *
+ * @author Eric Blake (ebb9@email.byu.edu)
+ * @see Proxy
+ * @see InvocationHandler
+ * @since 1.3
+ * @status updated to 1.4
+ */
+public class UndeclaredThrowableException extends RuntimeException
+{
+ /**
+ * Compatible with JDK 1.3+.
+ */
+ private static final long serialVersionUID = 330127114055056639L;
+
+ /**
+ * The immutable exception that this wraps. This field is redundant
+ * with {@link Throwable#getCause()}, but is necessary for serial compatibility.
+ *
+ * @serial the chained exception
+ */
+ private final Throwable undeclaredThrowable;
+
+ /**
+ * Wraps the given checked exception into a RuntimeException, with no
+ * detail message. {@link Throwable#initCause(Throwable)} will fail
+ * on this instance.
+ *
+ * @param cause the undeclared throwable that caused this exception,
+ * may be null
+ */
+ public UndeclaredThrowableException(Throwable cause)
+ {
+ this(cause, null);
+ }
+
+ /**
+ * Wraps the given checked exception into a RuntimeException, with the
+ * specified detail message. {@link Throwable#initCause(Throwable)} will
+ * fail on this instance.
+ *
+ * @param cause the undeclared throwable that caused this exception,
+ * may be null
+ * @param message the message, may be null
+ */
+ public UndeclaredThrowableException(Throwable cause, String message)
+ {
+ super(message, cause);
+ undeclaredThrowable = cause;
+ }
+
+ /**
+ * Returns the cause of this exception. If this exception was created
+ * by a {@link Proxy} instance, it will be a non-null checked
+ * exception. This method pre-dates exception chaining, and is now
+ * simply a longer way to call <code>getCause()</code>.
+ *
+ * @return the cause of this exception, may be null
+ * @see #getCause()
+ */
+ public Throwable getUndeclaredThrowable()
+ {
+ return undeclaredThrowable;
+ }
+
+ /**
+ * Returns the cause of this exception. If this exception was created
+ * by a {@link Proxy} instance, it will be a non-null checked
+ * exception.
+ *
+ * @return the cause of this exception, may be null
+ * @since 1.4
+ */
+ public Throwable getCause()
+ {
+ return undeclaredThrowable;
+ }
+}