fix: response body write failed when getOutputStream already called

generator/src/main/java/com/reajason/javaweb/probe/payload/response/ApusicWriter.java

@@ -1,5 +1,8 @@
 package com.reajason.javaweb.probe.payload.response;
 
+import java.io.ByteArrayOutputStream;
+import java.io.OutputStream;
+import java.io.PrintStream;
 import java.io.PrintWriter;
 import java.lang.reflect.Array;
 import java.lang.reflect.Field;
@@ -32,15 +35,25 @@ public class ApusicWriter {
                     Object response = getFieldValue(servletInvocation, "response");
                     String data = getDataFromReq(request);
                     if (data != null && !data.isEmpty()) {
-                        PrintWriter writer = (PrintWriter) invokeMethod(response, "getWriter", null, null);
+                        String result = "";
                         try {
-                            writer.write(run(data));
+                            result = run(data);
                         } catch (Throwable e) {
-                            e.printStackTrace();
+                            result = getErrorMessage(e);
-                            e.printStackTrace(writer);
                         }
+                        if (result != null) {
+                            try {
+                                OutputStream outputStream = (OutputStream) invokeMethod(response, "getOutputStream", null, null);
+                                outputStream.write(result.getBytes());
+                                outputStream.flush();
+                                outputStream.close();
+                            } catch (Throwable e) {
+                                PrintWriter writer = (PrintWriter) invokeMethod(response, "getWriter", null, null);
+                                writer.write(result);
                                 writer.flush();
                                 writer.close();
+                            }
+                        }
                         return;
                     }
                 }
@@ -96,4 +109,19 @@ public class ApusicWriter {
         }
         throw new NoSuchFieldException(obj.getClass().getName() + " Field not found: " + name);
     }
+
+    @SuppressWarnings("all")
+    private String getErrorMessage(Throwable throwable) {
+        PrintStream printStream = null;
+        try {
+            ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
+            printStream = new PrintStream(outputStream);
+            throwable.printStackTrace(printStream);
+            return outputStream.toString();
+        } finally {
+            if (printStream != null) {
+                printStream.close();
+            }
+        }
+    }
 }

generator/src/main/java/com/reajason/javaweb/probe/payload/response/GlassFishWriter.java

@@ -1,5 +1,8 @@
 package com.reajason.javaweb.probe.payload.response;
 
+import java.io.ByteArrayOutputStream;
+import java.io.OutputStream;
+import java.io.PrintStream;
 import java.io.PrintWriter;
 import java.lang.reflect.Field;
 import java.lang.reflect.Method;
@@ -22,10 +25,8 @@ public class GlassFishWriter {
                 // GlassFish3
                 Thread thread = Thread.currentThread();
                 Object request = invokeMethod(getFieldValue(getFieldValue(thread, "processorTask"), "request"), "getNote", new Class[]{Integer.TYPE}, new Object[]{1});
-                Object response = invokeMethod(request, "getResponse", null, null);
+                if (tryWriteRes(request)) {
-                String data = getDataFromReq(request);
+                    return;
-                if (data != null && !data.isEmpty()) {
-                    execute(response, data);
                 }
             } catch (Exception x) {
                 // GlassFish4+
@@ -48,10 +49,7 @@ public class GlassFishWriter {
                         }
                         Object notesHolder = getFieldValue(getFieldValue(coyoteRequest, "request"), "notesHolder");
                         Object request = invokeMethod(notesHolder, "getAttribute", new Class[]{String.class}, new Object[]{"org.apache.catalina.connector.Request"});
-                        Object response = invokeMethod(request, "getResponse", null, null);
+                        if (tryWriteRes(request)) {
-                        String data = getDataFromReq(request);
-                        if (data != null && !data.isEmpty()) {
-                            execute(response, data);
                             return;
                         }
                     }
@@ -64,16 +62,33 @@ public class GlassFishWriter {
         }
     }
 
-    private void execute(Object response, String data) throws Exception {
+    private boolean tryWriteRes(Object request) throws Exception {
-        PrintWriter writer = (PrintWriter) invokeMethod(response, "getWriter", null, null);
+        Object response = invokeMethod(request, "getResponse", null, null);
+        String data = getDataFromReq(request);
+        if (data != null && !data.isEmpty()) {
+            String result = "";
             try {
-            writer.write(run(data));
+                result = run(data);
             } catch (Throwable e) {
-            e.printStackTrace(writer);
+                result = getErrorMessage(e);
             }
+            if (result != null) {
+                try {
+                    OutputStream outputStream = (OutputStream) invokeMethod(response, "getOutputStream", null, null);
+                    outputStream.write(result.getBytes());
+                    outputStream.flush();
+                    outputStream.close();
+                } catch (Throwable e) {
+                    PrintWriter writer = (PrintWriter) invokeMethod(response, "getWriter", null, null);
+                    writer.write(result);
                     writer.flush();
                     writer.close();
                 }
+            }
+            return true;
+        }
+        return false;
+    }
 
     private String getDataFromReq(Object request) throws Exception {
         return null;
@@ -119,4 +134,19 @@ public class GlassFishWriter {
         }
         throw new NoSuchFieldException(obj.getClass().getName() + " Field not found: " + name);
     }
+
+    @SuppressWarnings("all")
+    private String getErrorMessage(Throwable throwable) {
+        PrintStream printStream = null;
+        try {
+            ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
+            printStream = new PrintStream(outputStream);
+            throwable.printStackTrace(printStream);
+            return outputStream.toString();
+        } finally {
+            if (printStream != null) {
+                printStream.close();
+            }
+        }
+    }
 }

generator/src/main/java/com/reajason/javaweb/probe/payload/response/JettyWriter.java

@@ -2,8 +2,10 @@ package com.reajason.javaweb.probe.payload.response;
 
 import org.eclipse.jetty.util.Callback;
 
+import java.io.ByteArrayOutputStream;
+import java.io.OutputStream;
+import java.io.PrintStream;
 import java.io.PrintWriter;
-import java.io.StringWriter;
 import java.lang.reflect.Array;
 import java.lang.reflect.Field;
 import java.lang.reflect.Method;
@@ -49,24 +51,31 @@ public class JettyWriter {
                     }
                     String data = getDataFromReq(request);
                     if (data != null && !data.isEmpty()) {
-                        StringWriter sw = new StringWriter();
+                        String result = "";
-                        PrintWriter writer = new PrintWriter(sw);
                         try {
-                            writer.write(run(data));
+                            result = run(data);
                         } catch (Throwable e) {
-                            e.printStackTrace();
+                            result = getErrorMessage(e);
-                            e.printStackTrace(writer);
                         }
-                        String result = sw.toString();
+                        if (result != null) {
-                        System.out.println("result: " + result);
+                            try {
+                                OutputStream outputStream = (OutputStream) invokeMethod(response, "getOutputStream", null, null);
+                                outputStream.write(result.getBytes());
+                                outputStream.flush();
+                                outputStream.close();
+                            } catch (Throwable e) {
                                 try {
                                     PrintWriter resWriter = (PrintWriter) invokeMethod(response, "getWriter", null, null);
                                     resWriter.write(result);
-                        } catch (Exception e) {
+                                    resWriter.flush();
+                                    resWriter.close();
+                                } catch (Exception x) {
                                     invokeMethod(response, "setStatus", new Class[]{int.class}, new Object[]{200});
                                     ByteBuffer content = UTF_8.encode(result);
                                     invokeMethod(response, "write", new Class[]{boolean.class, ByteBuffer.class, Callback.class}, new Object[]{true, content, null});
                                 }
+                            }
+                        }
                         return;
                     }
                 }
@@ -122,4 +131,19 @@ public class JettyWriter {
         }
         throw new NoSuchFieldException(obj.getClass().getName() + " Field not found: " + name);
     }
+
+    @SuppressWarnings("all")
+    private String getErrorMessage(Throwable throwable) {
+        PrintStream printStream = null;
+        try {
+            ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
+            printStream = new PrintStream(outputStream);
+            throwable.printStackTrace(printStream);
+            return outputStream.toString();
+        } finally {
+            if (printStream != null) {
+                printStream.close();
+            }
+        }
+    }
 }

generator/src/main/java/com/reajason/javaweb/probe/payload/response/ResinWriter.java

@@ -1,5 +1,8 @@
 package com.reajason.javaweb.probe.payload.response;
 
+import java.io.ByteArrayOutputStream;
+import java.io.OutputStream;
+import java.io.PrintStream;
 import java.io.PrintWriter;
 import java.lang.reflect.Field;
 import java.lang.reflect.Method;
@@ -22,17 +25,30 @@ public class ResinWriter {
             Object request = invokeMethod(invocationClazz, "getContextRequest", null, null);
             Object response = getFieldValue(request, "_response");
             String data = getDataFromReq(request);
-            PrintWriter writer = (PrintWriter) invokeMethod(response, "getWriter", null, null);
+            if (data != null && !data.isEmpty()) {
+                String result = "";
                 try {
-                writer.write(run(data));
+                    result = run(data);
                 } catch (Throwable e) {
-                e.printStackTrace(writer);
+                    result = getErrorMessage(e);
                 }
+                if (result != null) {
+                    try {
+                        OutputStream outputStream = (OutputStream) invokeMethod(response, "getOutputStream", null, null);
+                        outputStream.write(result.getBytes());
+                        outputStream.flush();
+                        outputStream.close();
+                    } catch (Throwable e) {
+                        PrintWriter writer = (PrintWriter) invokeMethod(response, "getWriter", null, null);
+                        writer.write(result);
                         writer.flush();
                         writer.close();
+                    }
+                }
                 // com.caucho.server.connection.AbstractHttpResponse.close
                 // 不关闭 response 的话会遇到重复写响应体的情况
-            invokeMethod(response, "close", null, null);
+//                invokeMethod(response, "close", null, null);
+            }
         } catch (Throwable e) {
             e.printStackTrace();
         } finally {
@@ -84,4 +100,19 @@ public class ResinWriter {
         }
         throw new NoSuchFieldException(obj.getClass().getName() + " Field not found: " + name);
     }
+
+    @SuppressWarnings("all")
+    private String getErrorMessage(Throwable throwable) {
+        PrintStream printStream = null;
+        try {
+            ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
+            printStream = new PrintStream(outputStream);
+            throwable.printStackTrace(printStream);
+            return outputStream.toString();
+        } finally {
+            if (printStream != null) {
+                printStream.close();
+            }
+        }
+    }
 }

generator/src/main/java/com/reajason/javaweb/probe/payload/response/SpringWebMvcWriter.java

@@ -1,5 +1,8 @@
 package com.reajason.javaweb.probe.payload.response;
 
+import java.io.ByteArrayOutputStream;
+import java.io.OutputStream;
+import java.io.PrintStream;
 import java.io.PrintWriter;
 import java.lang.reflect.Field;
 import java.lang.reflect.Method;
@@ -23,17 +26,26 @@ public class SpringWebMvcWriter {
             Object response = invokeMethod(requestAttributes, "getResponse", null, null);
             String data = getDataFromReq(request);
             if (data != null && !data.isEmpty()) {
-                PrintWriter writer = (PrintWriter) invokeMethod(response, "getWriter", null, null);
+                String result = "";
                 try {
-                    writer.write(run(data));
+                    result = run(data);
                 } catch (Throwable e) {
-                    e.printStackTrace(writer);
+                    result = getErrorMessage(e);
                 }
+                if (result != null) {
+                    try {
+                        OutputStream outputStream = (OutputStream) invokeMethod(response, "getOutputStream", null, null);
+                        outputStream.write(result.getBytes());
+                        outputStream.flush();
+                        outputStream.close();
+                    } catch (Throwable e) {
+                        PrintWriter writer = (PrintWriter) invokeMethod(response, "getWriter", null, null);
+                        writer.write(result);
                         writer.flush();
                         writer.close();
-                return;
                     }
-
+                }
+            }
         } catch (Throwable e) {
             e.printStackTrace();
         } finally {
@@ -85,4 +97,19 @@ public class SpringWebMvcWriter {
         }
         throw new NoSuchFieldException(obj.getClass().getName() + " Field not found: " + name);
     }
+
+    @SuppressWarnings("all")
+    private String getErrorMessage(Throwable throwable) {
+        PrintStream printStream = null;
+        try {
+            ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
+            printStream = new PrintStream(outputStream);
+            throwable.printStackTrace(printStream);
+            return outputStream.toString();
+        } finally {
+            if (printStream != null) {
+                printStream.close();
+            }
+        }
+    }
 }

generator/src/main/java/com/reajason/javaweb/probe/payload/response/Struct2Writer.java

@@ -1,5 +1,8 @@
 package com.reajason.javaweb.probe.payload.response;
 
+import java.io.ByteArrayOutputStream;
+import java.io.OutputStream;
+import java.io.PrintStream;
 import java.io.PrintWriter;
 import java.lang.reflect.Field;
 import java.lang.reflect.Method;
@@ -23,16 +26,26 @@ public class Struct2Writer {
             Object response = getMethod.invoke(context, "com.opensymphony.xwork2.dispatcher.HttpServletResponse");
             String data = getDataFromReq(request);
             if (data != null && !data.isEmpty()) {
-                PrintWriter writer = (PrintWriter) invokeMethod(response, "getWriter", null, null);
+                String result = "";
                 try {
-                    writer.write(run(data));
+                    result = run(data);
                 } catch (Throwable e) {
-                    e.printStackTrace();
+                    result = getErrorMessage(e);
-                    e.printStackTrace(writer);
                 }
+                if (result != null) {
+                    try {
+                        OutputStream outputStream = (OutputStream) invokeMethod(response, "getOutputStream", null, null);
+                        outputStream.write(result.getBytes());
+                        outputStream.flush();
+                        outputStream.close();
+                    } catch (Throwable e) {
+                        PrintWriter writer = (PrintWriter) invokeMethod(response, "getWriter", null, null);
+                        writer.write(result);
                         writer.flush();
                         writer.close();
                     }
+                }
+            }
         } catch (Throwable e) {
             e.printStackTrace();
         } finally {
@@ -84,4 +97,19 @@ public class Struct2Writer {
         }
         throw new NoSuchFieldException(obj.getClass().getName() + " Field not found: " + name);
     }
+
+    @SuppressWarnings("all")
+    private String getErrorMessage(Throwable throwable) {
+        PrintStream printStream = null;
+        try {
+            ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
+            printStream = new PrintStream(outputStream);
+            throwable.printStackTrace(printStream);
+            return outputStream.toString();
+        } finally {
+            if (printStream != null) {
+                printStream.close();
+            }
+        }
+    }
 }

generator/src/main/java/com/reajason/javaweb/probe/payload/response/TomcatWriter.java

@@ -1,5 +1,8 @@
 package com.reajason.javaweb.probe.payload.response;
 
+import java.io.ByteArrayOutputStream;
+import java.io.OutputStream;
+import java.io.PrintStream;
 import java.io.PrintWriter;
 import java.lang.reflect.Field;
 import java.lang.reflect.Method;
@@ -71,14 +74,25 @@ public class TomcatWriter {
                     Object response = invokeMethod(request, "getResponse", null, null);
                     String data = getDataFromReq(request);
                     if (data != null && !data.isEmpty()) {
-                        PrintWriter writer = (PrintWriter) invokeMethod(response, "getWriter", null, null);
+                        String result = "";
                         try {
-                            writer.write(run(data));
+                            result = run(data);
                         } catch (Throwable e) {
-                            e.printStackTrace(writer);
+                            result = getErrorMessage(e);
                         }
+                        if (result != null) {
+                            try {
+                                OutputStream outputStream = (OutputStream) invokeMethod(response, "getOutputStream", null, null);
+                                outputStream.write(result.getBytes());
+                                outputStream.flush();
+                                outputStream.close();
+                            } catch (Throwable e) {
+                                PrintWriter writer = (PrintWriter) invokeMethod(response, "getWriter", null, null);
+                                writer.write(result);
                                 writer.flush();
                                 writer.close();
+                            }
+                        }
                         return;
                     }
                 }
@@ -134,4 +148,19 @@ public class TomcatWriter {
         }
         throw new NoSuchFieldException(obj.getClass().getName() + " Field not found: " + name);
     }
+
+    @SuppressWarnings("all")
+    private String getErrorMessage(Throwable throwable) {
+        PrintStream printStream = null;
+        try {
+            ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
+            printStream = new PrintStream(outputStream);
+            throwable.printStackTrace(printStream);
+            return outputStream.toString();
+        } finally {
+            if (printStream != null) {
+                printStream.close();
+            }
+        }
+    }
 }

generator/src/main/java/com/reajason/javaweb/probe/payload/response/TongWebWriter.java

@@ -1,5 +1,8 @@
 package com.reajason.javaweb.probe.payload.response;
 
+import java.io.ByteArrayOutputStream;
+import java.io.OutputStream;
+import java.io.PrintStream;
 import java.io.PrintWriter;
 import java.lang.reflect.Field;
 import java.lang.reflect.Method;
@@ -70,14 +73,25 @@ public class TongWebWriter {
         Object response = invokeMethod(request, "getResponse", null, null);
         String data = getDataFromReq(request);
         if (data != null && !data.isEmpty()) {
-            PrintWriter writer = (PrintWriter) invokeMethod(response, "getWriter", null, null);
+            String result = "";
             try {
-                writer.write(run(data));
+                result = run(data);
             } catch (Throwable e) {
-                e.printStackTrace(writer);
+                result = getErrorMessage(e);
             }
+            if (result != null) {
+                try {
+                    OutputStream outputStream = (OutputStream) invokeMethod(response, "getOutputStream", null, null);
+                    outputStream.write(result.getBytes());
+                    outputStream.flush();
+                    outputStream.close();
+                } catch (Throwable e) {
+                    PrintWriter writer = (PrintWriter) invokeMethod(response, "getWriter", null, null);
+                    writer.write(result);
                     writer.flush();
                     writer.close();
+                }
+            }
             return true;
         }
         return false;
@@ -127,4 +141,19 @@ public class TongWebWriter {
         }
         throw new NoSuchFieldException(obj.getClass().getName() + " Field not found: " + name);
     }
+
+    @SuppressWarnings("all")
+    private String getErrorMessage(Throwable throwable) {
+        PrintStream printStream = null;
+        try {
+            ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
+            printStream = new PrintStream(outputStream);
+            throwable.printStackTrace(printStream);
+            return outputStream.toString();
+        } finally {
+            if (printStream != null) {
+                printStream.close();
+            }
+        }
+    }
 }

generator/src/main/java/com/reajason/javaweb/probe/payload/response/UndertowWriter.java

@@ -1,5 +1,8 @@
 package com.reajason.javaweb.probe.payload.response;
 
+import java.io.ByteArrayOutputStream;
+import java.io.OutputStream;
+import java.io.PrintStream;
 import java.io.PrintWriter;
 import java.lang.reflect.Array;
 import java.lang.reflect.Field;
@@ -31,14 +34,27 @@ public class UndertowWriter {
                     Object request = getFieldValue(value, "servletRequest");
                     Object response = getFieldValue(value, "servletResponse");
                     String data = getDataFromReq(request);
-                    PrintWriter writer = (PrintWriter) invokeMethod(response, "getWriter", null, null);
+                    if (data != null && !data.isEmpty()) {
+                        String result = "";
                         try {
-                        writer.write(run(data));
+                            result = run(data);
                         } catch (Throwable e) {
-                        e.printStackTrace(writer);
+                            result = getErrorMessage(e);
                         }
+                        if (result != null) {
+                            try {
+                                OutputStream outputStream = (OutputStream) invokeMethod(response, "getOutputStream", null, null);
+                                outputStream.write(result.getBytes());
+                                outputStream.flush();
+                                outputStream.close();
+                            } catch (Throwable e) {
+                                PrintWriter writer = (PrintWriter) invokeMethod(response, "getWriter", null, null);
+                                writer.write(result);
                                 writer.flush();
                                 writer.close();
+                            }
+                        }
+                    }
                     return;
                 }
             }
@@ -93,4 +109,19 @@ public class UndertowWriter {
         }
         throw new NoSuchFieldException(obj.getClass().getName() + " Field not found: " + name);
     }
+
+    @SuppressWarnings("all")
+    private String getErrorMessage(Throwable throwable) {
+        PrintStream printStream = null;
+        try {
+            ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
+            printStream = new PrintStream(outputStream);
+            throwable.printStackTrace(printStream);
+            return outputStream.toString();
+        } finally {
+            if (printStream != null) {
+                printStream.close();
+            }
+        }
+    }
 }

generator/src/main/java/com/reajason/javaweb/probe/payload/response/WebLogicWriter.java

@@ -1,5 +1,8 @@
 package com.reajason.javaweb.probe.payload.response;
 
+import java.io.ByteArrayOutputStream;
+import java.io.OutputStream;
+import java.io.PrintStream;
 import java.io.PrintWriter;
 import java.lang.reflect.Field;
 import java.lang.reflect.Method;
@@ -38,16 +41,27 @@ public class WebLogicWriter {
             }
             String data = getDataFromReq(request);
             if (data != null && !data.isEmpty()) {
-                PrintWriter writer = (PrintWriter) invokeMethod(response, "getWriter", null, null);
+                String result = "";
                 try {
-                    writer.write(run(data));
+                    result = run(data);
                 } catch (Throwable e) {
-                    e.printStackTrace(writer);
+                    result = getErrorMessage(e);
                 }
+                if (result != null) {
+                    try {
+                        OutputStream outputStream = (OutputStream) invokeMethod(response, "getOutputStream", null, null);
+                        outputStream.write(result.getBytes());
+                        outputStream.flush();
+                        outputStream.close();
+                    } catch (Throwable e) {
+                        PrintWriter writer = (PrintWriter) invokeMethod(response, "getWriter", null, null);
+                        writer.write(result);
                         writer.flush();
                         writer.close();
+                    }
+                }
                 // 防止重复写响应，提前触发 send 操作
-                invokeMethod(response, "send", null, null);
+//                invokeMethod(response, "send", null, null);
             }
         } catch (Throwable e) {
             e.printStackTrace();
@@ -101,4 +115,19 @@ public class WebLogicWriter {
         }
         throw new NoSuchFieldException(obj.getClass().getName() + " Field not found: " + name);
     }
+
+    @SuppressWarnings("all")
+    private String getErrorMessage(Throwable throwable) {
+        PrintStream printStream = null;
+        try {
+            ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
+            printStream = new PrintStream(outputStream);
+            throwable.printStackTrace(printStream);
+            return outputStream.toString();
+        } finally {
+            if (printStream != null) {
+                printStream.close();
+            }
+        }
+    }
 }

generator/src/main/java/com/reajason/javaweb/probe/payload/response/WebSphereWriter.java

@@ -1,5 +1,8 @@
 package com.reajason.javaweb.probe.payload.response;
 
+import java.io.ByteArrayOutputStream;
+import java.io.OutputStream;
+import java.io.PrintStream;
 import java.io.PrintWriter;
 import java.lang.reflect.Field;
 import java.lang.reflect.Method;
@@ -32,17 +35,27 @@ public class WebSphereWriter {
                     Object response = getFieldValue(wsThreadLocal, "currentThreadsIExtendedResponse");
                     String data = getDataFromReq(request);
                     if (data != null && !data.isEmpty()) {
-                        PrintWriter writer = (PrintWriter) invokeMethod(response, "getWriter", null, null);
+                        String result = "";
                         try {
-                            writer.write(run(data));
+                            result = run(data);
                         } catch (Throwable e) {
-                            e.printStackTrace(writer);
+                            result = getErrorMessage(e);
                         }
+                        if (result != null) {
+                            try {
+                                OutputStream outputStream = (OutputStream) invokeMethod(response, "getOutputStream", null, null);
+                                outputStream.write(result.getBytes());
+                                outputStream.flush();
+                                outputStream.close();
+                            } catch (Throwable e) {
+                                PrintWriter writer = (PrintWriter) invokeMethod(response, "getWriter", null, null);
+                                writer.write(result);
                                 writer.flush();
                                 writer.close();
+                            }
+                        }
                         return;
                     }
-                    break;
                 }
             }
         } catch (Throwable e) {
@@ -96,4 +109,19 @@ public class WebSphereWriter {
         }
         throw new NoSuchFieldException(obj.getClass().getName() + " Field not found: " + name);
     }
+
+    @SuppressWarnings("all")
+    private String getErrorMessage(Throwable throwable) {
+        PrintStream printStream = null;
+        try {
+            ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
+            printStream = new PrintStream(outputStream);
+            throwable.printStackTrace(printStream);
+            return outputStream.toString();
+        } finally {
+            if (printStream != null) {
+                printStream.close();
+            }
+        }
+    }
 }