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jeremybenn |
/* KeyAgreementException.java --
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Copyright (C) 2003, 2006 Free Software Foundation, Inc.
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This file is a part of GNU Classpath.
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GNU Classpath is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or (at
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your option) any later version.
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GNU Classpath is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GNU Classpath; if not, write to the Free Software
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Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301
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USA
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Linking this library statically or dynamically with other modules is
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making a combined work based on this library. Thus, the terms and
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conditions of the GNU General Public License cover the whole
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combination.
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As a special exception, the copyright holders of this library give you
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permission to link this library with independent modules to produce an
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executable, regardless of the license terms of these independent
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modules, and to copy and distribute the resulting executable under
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terms of your choice, provided that you also meet, for each linked
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independent module, the terms and conditions of the license of that
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module. An independent module is a module which is not derived from
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or based on this library. If you modify this library, you may extend
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this exception to your version of the library, but you are not
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obligated to do so. If you do not wish to do so, delete this
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exception statement from your version. */
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package gnu.javax.crypto.key;
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import gnu.java.lang.CPStringBuilder;
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import java.io.PrintStream;
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import java.io.PrintWriter;
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import java.io.Serializable;
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import java.security.KeyManagementException;
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/**
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* A generic exception indicating that an unexpected condition has been detected
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* during the setup and/or processing of a key agreement protocol exchange.
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*/
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public class KeyAgreementException
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extends KeyManagementException
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implements Serializable
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{
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/** @serial The possibly <code>null</code> <i>root</i> cause exception. */
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private Throwable cause = null;
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/**
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* Constructs a new instance of <code>KeyAgreementException</code>. The
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* root exception and the detailed message are <code>null</code>.
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*/
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public KeyAgreementException()
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{
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super();
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}
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/**
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* Constructs a new instance of <code>KeyAgreementException</code> with a
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* detailed message. The <i>root</i> exception is <code>null</code>.
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*
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* @param detail a possibly <code>null</code> string containing details of
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* the exception.
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* @see Throwable#getMessage()
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*/
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public KeyAgreementException(String detail)
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{
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super(detail);
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}
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/**
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* Constructs a new instance of <code>KeyAgreementException</code> with a
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* detailed message and a <i>root</i> exception.
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*
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* @param detail a possibly <code>null</code> string containing details of
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* the exception.
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* @param cause a possibly <code>null</code> root exception that caused this
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* exception.
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* @see Throwable#getMessage()
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* @see #getCause()
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*/
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public KeyAgreementException(String detail, Throwable cause)
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{
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super(detail);
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this.cause = cause;
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}
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/**
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* Returns the cause of this throwable or <code>null</code> if the cause is
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* nonexistent or unknown. The <i>cause</i> is the throwable that caused this
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* exception to be thrown.
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*
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* @return the possibly <code>null</code> exception that caused this one.
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*/
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public Throwable getCause()
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{
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return cause;
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}
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/**
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* Prints this exception's stack trace to <code>System.err</code>. If this
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* exception has a <i>root</i> exception; the stack trace of the <i>root</i>
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* exception is also printed to <code>System.err</code>.
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*/
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public void printStackTrace()
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{
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super.printStackTrace();
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if (cause != null)
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cause.printStackTrace();
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}
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/**
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* Prints this exception's stack trace to a print stream. If this exception
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* has a <i>root</i> exception; the stack trace of the <i>root</i> exception
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* is also printed to the print stream.
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*
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* @param ps the non-null print stream to which to print.
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*/
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public void printStackTrace(PrintStream ps)
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{
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super.printStackTrace(ps);
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if (cause != null)
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cause.printStackTrace(ps);
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}
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/**
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* Prints this exception's stack trace to a print writer. If this exception
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* has a <i>root</i> exception; the stack trace of the <i>root</i> exception
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* is also printed to the print writer.
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*
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* @param pw the non-null print writer to use for output.
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*/
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public void printStackTrace(PrintWriter pw)
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{
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super.printStackTrace(pw);
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if (cause != null)
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cause.printStackTrace(pw);
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}
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/**
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* Returns the string representation of this exception. The string
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* representation contains this exception's class name, its detailed messsage,
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* and if it has a <i>root</i> exception, the string representation of the
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* root exception. This string representation is meant for debugging and is
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* not meant to be interpreted programmatically.
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*
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* @return the non-null string representation of this exception.
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* @see Throwable#getMessage()
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*/
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public String toString()
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{
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CPStringBuilder sb = new CPStringBuilder(this.getClass().getName()).append(": ")
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.append(super.toString());
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if (cause != null)
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sb.append("; caused by: ").append(cause.toString());
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return sb.toString();
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}
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}
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