Stack trace as String

Question

How do I get full exception message in Java?

I am creating a Java Application. If there is a runtime exception, a JDialog with a JTextArea

Answer 1

Try e.printStackTrace(), it will print trace for your exception with lines mentioned

Answer 2

To get the stack trace into a string you can use these lines:

    CharArrayWriter cw = new CharArrayWriter();
    PrintWriter w = new PrintWriter(cw);
    e.printStackTrace(w);
    w.close();
    String trace = cw.toString();

Answer 3

e.printStackTrace will give the full stack trace

Answer 4

This is the full exception message.

If you want more information try e.printStackTrace()

then you will get excatly what you see on the picture you postet

Answer 5

You need to call the Throwable#printStackTrace(PrintWriter);

try{

}catch(Exception ex){
    String message = getStackTrace(ex);
}

public static String getStackTrace(final Throwable throwable) {
     final StringWriter sw = new StringWriter();
     final PrintWriter pw = new PrintWriter(sw, true);
     throwable.printStackTrace(pw);
     return sw.getBuffer().toString();
}

You can also use commons-lang-2.2.jar Apache Commons Lang library which provides this functionality:

public static String getStackTrace(Throwable throwable)
Gets the stack trace from a Throwable as a String.

ExceptionUtils#getStackTrace()

Answer 6

public static String getStackMsg(Throwable e) {
    StringBuffer sb = new StringBuffer();
    sb.append(e.toString()).append("\n");
    StackTraceElement[] stackArray = e.getStackTrace();

    for(int i = 0; i < stackArray.length; ++i) {
        StackTraceElement element = stackArray[i];
        sb.append(element.toString() + "\n");
    }

    return sb.toString();
}