Java 11 migration: patterns (t-v) (#1085)

* Moves visitor pattern to java 11

* Moves value-object pattern to java 11

* Moves unit-of-work pattern to java 11

* Moves typeobjectpattern pattern to java 11

* Moves twin pattern to java 11

* Moves trampoline pattern to java 11

* Moves tolerant-reader pattern to java 11

* Moves tls pattern to java 11

* Moves throttling pattern to java 11

* Moves thread-pool pattern to java 11

* Moves template-method pattern to java 11

trampoline/src/main/java/com/iluwatar/trampoline/Trampoline.java

@@ -99,13 +99,11 @@ public interface Trampoline<T> {
       }
 
       T trampoline(final Trampoline<T> trampoline) {
-
         return Stream.iterate(trampoline, Trampoline::jump)
             .filter(Trampoline::complete)
             .findFirst()
-            .get()
-            .result();
-
+            .map(Trampoline::result)
+            .orElseThrow();
       }
     };
   }

trampoline/src/main/java/com/iluwatar/trampoline/TrampolineApp.java

@@ -40,7 +40,7 @@ public class TrampolineApp {
    */
   public static void main(String[] args) {
     log.info("start pattern");
-    Integer result = loop(10, 1).result();
+    var result = loop(10, 1).result();
     log.info("result {}", result);
 
   }

trampoline/src/test/java/com/iluwatar/trampoline/TrampolineAppTest.java

@@ -23,22 +23,20 @@
 
 package com.iluwatar.trampoline;
 
+import static org.junit.Assert.assertEquals;
+
 import org.junit.Test;
 
-import java.io.IOException;
-
-import static org.junit.Assert.*;
-
 
 /**
  * Test for trampoline pattern.
- * */
+ */
 public class TrampolineAppTest {
 
 
   @Test
   public void testTrampolineWithFactorialFunction() {
-    int result = TrampolineApp.loop(10, 1).result();
+    long result = TrampolineApp.loop(10, 1).result();
     assertEquals("Be equal", 3628800, result);
   }