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    1   package org.apache.bcel.verifier;
    2
    3   /* ====================================================================
    4    * The Apache Software License, Version 1.1
    5    *
    6    * Copyright (c) 2001 The Apache Software Foundation.  All rights
    7    * reserved.
    8    *
    9    * Redistribution and use in source and binary forms, with or without
    10   * modification, are permitted provided that the following conditions
    11   * are met:
    12   *
    13   * 1. Redistributions of source code must retain the above copyright
    14   *    notice, this list of conditions and the following disclaimer.
    15   *
    16   * 2. Redistributions in binary form must reproduce the above copyright
    17   *    notice, this list of conditions and the following disclaimer in
    18   *    the documentation and/or other materials provided with the
    19   *    distribution.
    20   *
    21   * 3. The end-user documentation included with the redistribution,
    22   *    if any, must include the following acknowledgment:
    23   *       "This product includes software developed by the
    24   *        Apache Software Foundation (http://www.apache.org/)."
    25   *    Alternately, this acknowledgment may appear in the software itself,
    26   *    if and wherever such third-party acknowledgments normally appear.
    27   *
    28   * 4. The names "Apache" and "Apache Software Foundation" and
    29   *    "Apache BCEL" must not be used to endorse or promote products
    30   *    derived from this software without prior written permission. For
    31   *    written permission, please contact apache@apache.org.
    32   *
    33   * 5. Products derived from this software may not be called "Apache",
    34   *    "Apache BCEL", nor may "Apache" appear in their name, without
    35   *    prior written permission of the Apache Software Foundation.
    36   *
    37   * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
    38   * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
    39   * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
    40   * DISCLAIMED.  IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
    41   * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
    42   * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
    43   * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
    44   * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
    45   * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
    46   * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
    47   * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
    48   * SUCH DAMAGE.
    49   * ====================================================================
    50   *
    51   * This software consists of voluntary contributions made by many
    52   * individuals on behalf of the Apache Software Foundation.  For more
    53   * information on the Apache Software Foundation, please see
    54   * <http://www.apache.org/>;.
    55   */
    56
    57  /***
    58   * The NativeVerifier class implements a main(String[] args) method that's
    59   * roughly compatible to the one in the Verifier class, but that uses the
    60   * JVM's internal verifier for its class file verification.
    61   * This can be used for comparison runs between the JVM-internal verifier
    62   * and JustIce.
    63   *
    64   * @version $Id: NativeVerifier.java,v 1.1.1.1 2001/10/29 20:00:31 jvanzyl Exp $
    65   * @author <A HREF="http://www.inf.fu-berlin.de/~ehaase"/>Enver Haase</A>
    66   */
    67  public abstract class NativeVerifier{
    68
    69  	/***
    70  	 * This class must not be instantiated.
    71  	 */
    72  	private NativeVerifier(){
    73  	}
    74
    75  	/***
    76  	 * Works only on the first argument.
    77  	 */
    78  	public static void main(String [] args){
    79  		if (args.length != 1){
    80  			System.out.println("Verifier front-end: need exactly one argument.");
    81  			System.exit(1);
    82  		}
    83
    84  		int dotclasspos = args[0].lastIndexOf(".class");
    85  		if (dotclasspos != -1) args[0] = args[0].substring(0,dotclasspos);
    86  		args[0] = args[0].replace('/','.');
    87  		//System.out.println(args[0]);
    88
    89
    90  		try{
    91  			Class.forName(args[0]);
    92  		}
    93  		catch(ExceptionInInitializerError eiie){ //subclass of LinkageError!
    94  			System.out.println("NativeVerifier: ExceptionInInitializerError encountered on '"+args[0]+"'.");
    95  			System.out.println(eiie);
    96  			System.exit(1);
    97  		}
    98  		catch(LinkageError le){
    99  			System.out.println("NativeVerifier: LinkageError encountered on '"+args[0]+"'.");
    100 			System.out.println(le);
    101 			System.exit(1);
    102 		}
    103 		catch(ClassNotFoundException cnfe){
    104 			System.out.println("NativeVerifier: FILE NOT FOUND: '"+args[0]+"'.");
    105 			System.exit(1);
    106 		}
    107 		catch(Throwable t){
    108 			System.out.println("NativeVerifier: Unspecified verification error on'"+args[0]+"'.");
    109 			System.exit(1);
    110 		}
    111
    112 		System.out.println("NativeVerifier: Class file '"+args[0]+"' seems to be okay.");
    113 		System.exit(0);
    114
    115 	}
    116 }

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