[Bael 6099] - Add "core-java-10" and "core-java-11" modules (#4125)

* Added parent module on poms that have no parent defined

* Removed dependency reduced pom from undertow module

* [BAEL-6099] - Added core-java-10 and core-java-11 modules

* [BAEL-6099] - Added core-java-10 and core-java-11 modules

* [BAEL-6099] - Enforced compiling to a particular version

* [BAEL-6099] - Enforced compiling to a particular version

core-java-10/src/test/java/com/baeldung/AppTest.java

@@ -0,0 +1,38 @@
+package com.baeldung;
+
+import junit.framework.Test;
+import junit.framework.TestCase;
+import junit.framework.TestSuite;
+
+/**
+ * Unit test for simple App.
+ */
+public class AppTest 
+    extends TestCase
+{
+    /**
+     * Create the test case
+     *
+     * @param testName name of the test case
+     */
+    public AppTest( String testName )
+    {
+        super( testName );
+    }
+
+    /**
+     * @return the suite of tests being tested
+     */
+    public static Test suite()
+    {
+        return new TestSuite( AppTest.class );
+    }
+
+    /**
+     * Rigourous Test :-)
+     */
+    public void testApp()
+    {
+        assertTrue( true );
+    }
+}