add Thread ID to WolfSSLDebug logs

README

@@ -40,6 +40,7 @@ Release X.X.X has bug fixes and new features including:
 - Add internal implementation of SSLParameters, WolfSSLParameters
 - Add client-side SNI support
 - Fix warnings when DH is disabled (--disable-dh)
+- Add Java thread ID to JSSE debug log messages for easier multithreaded debug
 
 The wolfSSL JNI Manual is available at:
 http://www.wolfssl.com/documentation/wolfSSL-JNI-Manual.pdf. For build

src/java/com/wolfssl/provider/jsse/WolfSSLDebug.java

@@ -75,7 +75,8 @@ public class WolfSSLDebug {
      */
     public static void log(Class cl, String tag, String string) {
         if (DEBUG) {
-            System.out.println("[wolfJSSE " + tag + " : " +
+            System.out.println("[wolfJSSE " + tag + ": TID " +
+                               Thread.currentThread().getId() + ": " +
                                cl.getSimpleName() + "] " + string);
         }
     }