JException


1   /*
2    * The contents of this file are subject to the terms 
3    * of the Common Development and Distribution License 
4    * (the License).  You may not use this file except in
5    * compliance with the License.
6    * 
7    * You can obtain a copy of the license at 
8    * https://glassfish.dev.java.net/public/CDDLv1.0.html or
9    * glassfish/bootstrap/legal/CDDLv1.0.txt.
10   * See the License for the specific language governing 
11   * permissions and limitations under the License.
12   * 
13   * When distributing Covered Code, include this CDDL 
14   * Header Notice in each file and include the License file 
15   * at glassfish/bootstrap/legal/CDDLv1.0.txt.  
16   * If applicable, add the following below the CDDL Header, 
17   * with the fields enclosed by brackets [] replaced by
18   * you own identifying information: 
19   * "Portions Copyrighted [year] [name of copyright owner]"
20   * 
21   * Copyright 2006 Sun Microsystems, Inc. All rights reserved.
22   */
23  
24  package com.sun.enterprise.util;
25  
26  import  java.io.StringWriter  ;
27  import  java.io.PrintWriter  ;
28  
29  /**
30   * Utility class that is used for getting the stack trace for an
31   * exception via a JNI upcall (used by the C++ JException class in
32   * src/cpp/iws/netsite/j2ee/NSJavaUtil.*).
33   */
34  public class JException {
35      /**
36       * Collect the stack trace from the exception for use by native methods
37       * 
38       * @param obj Throwable object
39       * @return string, representing the stack trace
40       */
41      public static String   getStackTrace(Throwable   obj) {
42          if (obj == null)
43              return null;
44  
45          StringWriter   traceBuf = new StringWriter  ();
46          PrintWriter   pw = new PrintWriter  (traceBuf);
47          
48          obj.printStackTrace(pw);
49          pw.close();
50          
51          return traceBuf.toString();
52      }
53  }
54
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