More minor changes to address build failres for spark. Still cannot replicate in local

Author: sapessi

aws-serverless-java-container-spark/src/main/java/com/amazonaws/serverless/proxy/spark/embeddedserver/LambdaEmbeddedServer.java

@@ -49,9 +49,6 @@ public int ignite(String s, int i, SslStores sslStores, int i1, int i2, int i3)
             throws Exception {
         log.info("Starting Spark server, ignoring port and host");
         sparkFilter = new MatcherFilter(applicationRoutes, staticFilesConfiguration, false, hasMultipleHandler);
-        //sparkFilter.init(null);
-
-        //countDownLatch.countDown();
 
         return i;
     }

aws-serverless-java-container-spark/src/test/java/com/amazonaws/serverless/proxy/spark/SparkLambdaContainerHandlerTest.java

@@ -9,6 +9,7 @@
 import com.amazonaws.serverless.proxy.spark.filter.CustomHeaderFilter;
 
 import org.junit.AfterClass;
+import org.junit.BeforeClass;
 import org.junit.Test;
 import spark.Spark;
 
@@ -34,7 +35,7 @@ public void filters_onStartupMethod_executeFilters() {
             e.printStackTrace();
             fail();
         }
-
+        
         handler.onStartup(c -> {
             if (c == null) {
                 System.out.println("Null servlet context");
@@ -64,7 +65,7 @@ public static void stopSpark() {
         Spark.stop();
     }
 
-    private void configureRoutes() {
+    private static void configureRoutes() {
         get("/header-filter", (req, res) -> {
             res.status(200);
             return RESPONSE_BODY_TEXT;