Changes for "Guide to finally in Java" (BAEL-3526) (#8237)

* Adding files for finally keyword

* Adding returnFromCatch example.

* Adding empty braces instead of dangling ;

* Return from try, removing the catch block.

* moving to to core-java module

* moving to core-java-lang-2

core-java-modules/core-java-lang-2/src/test/java/com/baeldung/finallykeyword/PitfallsWhenUsingFinallyUnitTest.java

@@ -0,0 +1,27 @@
+package com.baeldung.finallykeyword;
+
+import static org.junit.Assert.*;
+
+import org.junit.Test;
+
+public class PitfallsWhenUsingFinallyUnitTest {
+
+    PitfallsWhenUsingFinally instance = new PitfallsWhenUsingFinally();
+
+    @Test
+    public void testIgnoresException() {
+        String result = instance.disregardsUnCaughtException();
+        assertEquals("from finally", result);
+    }
+
+    @Test
+    public void testIgnoresOtherReturns() {
+        String result = instance.ignoringOtherReturns();
+        assertEquals("from finally", result);
+    }
+
+    @Test(expected = RuntimeException.class)
+    public void testThrowsException() {
+        instance.throwsException();
+    }
+}