Here you can find the source of formatThrown(final Throwable thrown)
public static CharSequence formatThrown(final Throwable thrown)
//package com.java2s; /*/*from w w w. j a va 2s . co m*/ * Copyright (c) 2013 Team Trinidad and contributors http://github.com/trinidad * * Permission is hereby granted, free of charge, to any person obtaining * a copy of this software and associated documentation files (the * "Software"), to deal in the Software without restriction, including * without limitation the rights to use, copy, modify, merge, publish, * distribute, sublicense, and/or sell copies of the Software, and to * permit persons to whom the Software is furnished to do so, subject to * the following conditions: * * The above copyright notice and this permission notice shall be * included in all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ import java.io.PrintWriter; import java.io.StringWriter; public class Main { public static CharSequence formatThrown(final Throwable thrown) { if (thrown == null) return null; final StringBuilder buffer = new StringBuilder(); formatThrown(thrown, buffer); return buffer; } public static void formatThrown(final Throwable thrown, final StringBuilder buffer) { if (thrown == null) return; StringWriter stringWriter = new StringWriter(512); PrintWriter printWriter = new PrintWriter(stringWriter); thrown.printStackTrace(printWriter); printWriter.println(); printWriter.close(); buffer.append(stringWriter.getBuffer()); } }