Fix problem where a failure during handle creation could leak threads

Author: gmfeinberg

driver/src/main/java/oracle/nosql/driver/SDKVersion.java

@@ -12,5 +12,5 @@ public class SDKVersion {
     /**
      * The full X.Y.Z version of the current SDK
      */
-    public static final String VERSION = "5.1.18-SNAPSHOT";
+    public static final String VERSION = "5.4.18-SNAPSHOT";
 }

driver/src/main/java/oracle/nosql/driver/http/NoSQLHandleImpl.java

@@ -82,8 +82,14 @@ public NoSQLHandleImpl(NoSQLHandleConfig config) {
          */
         configSslContext(config);
         client = new Client(logger, config);
-        /* configAuthProvider may use client */
-        configAuthProvider(logger, config);
+        try {
+            /* configAuthProvider may use client */
+            configAuthProvider(logger, config);
+        } catch (RuntimeException re) {
+            /* cleanup client */
+            client.shutdown();
+            throw re;
+        }
     }
 
     /**