Java Throwable to String getStackTrace(Throwable ex)

Description

Get exception stack trace.

License

Apache License

Declaration

public static String getStackTrace(Throwable ex) 

Method Source Code

//package com.java2s;
/*//from  ww w.java2  s.  c o  m
 * Copyright (C) The Apache Software Foundation. All rights reserved.
 *
 * This software is published under the terms of the Apache Software License
 * version 1.1, a copy of which has been included with this distribution in
 * the LICENSE file.
 */

import java.io.InputStream;

import java.io.OutputStream;
import java.io.PrintWriter;
import java.io.Reader;
import java.io.StringWriter;
import java.io.Writer;

public class Main {
    /**
     * Get exception stack trace.
     */
    public static String getStackTrace(Throwable ex) {
        String result = "";
        try {
            StringWriter sw = new StringWriter();
            PrintWriter pw = new PrintWriter(sw);
            ex.printStackTrace(pw);
            pw.close();
            sw.close();
            result = sw.toString();
        } catch (Exception e) {
            e.printStackTrace();
        }
        return result;
    }

    /**
     * No exception <code>InputStream</code> close method.
     */
    public static InputStream close(InputStream is) {
        if (is != null) {
            try {
                is.close();
                is = null;
                // System.err.println("close InputStream");
            } catch (Exception ex) {
            }
        }
        return is;
    }

    /**
     * No exception <code>OutputStream</code> close method.
     */
    public static OutputStream close(OutputStream os) {
        if (os != null) {
            try {
                os.close();
                os = null;
                // System.err.println("close OutputStream");
            } catch (Exception ex) {
            }
        }
        return os;
    }

    /**
     * No exception <code>java.io.Reader</code> close method.
     */
    public static void close(Reader rd) {
        if (rd != null) {
            try {
                rd.close();
            } catch (Exception ex) {
            }
        }
    }

    /**
     * No exception <code>java.io.Writer</code> close method.
     */
    public static void close(Writer wr) {
        if (wr != null) {
            try {
                wr.close();
            } catch (Exception ex) {
            }
        }
    }
}

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