@Override
public void writeTo(StreamOutput out) throws IOException {
out.writeOptionalString(this.getMessage());
out.writeException(this.getCause());
writeStackTraces(this, out);
out.writeMapOfLists(headers, StreamOutput::writeString, StreamOutput::writeString);
}
/**
* Serializes the given exceptions stacktrace elements as well as it's suppressed exceptions to
* the given output stream.
*/
public static <T extends Throwable> T writeStackTraces(T throwable, StreamOutput out)
throws IOException {
StackTraceElement[] stackTrace = throwable.getStackTrace();
out.writeVInt(stackTrace.length);
for (StackTraceElement element : stackTrace) {
out.writeString(element.getClassName());
out.writeOptionalString(element.getFileName());
out.writeString(element.getMethodName());
out.writeVInt(element.getLineNumber());
}
Throwable[] suppressed = throwable.getSuppressed();
out.writeVInt(suppressed.length);
for (Throwable t : suppressed) {
out.writeException(t);
}
return throwable;
}