JAVA-2116: Split or move libraries-data-2 module (#9716)

* JAVA-2116: Move Java-R Integration to libraries-6 module

* JAVA-2116: Move Guide to JMapper to libraries-data module

libraries-6/src/test/java/com/baeldung/r/RserveMeanIntegrationTest.java

@@ -0,0 +1,34 @@
+package com.baeldung.r;
+
+import org.junit.Assert;
+import org.junit.Ignore;
+import org.junit.Test;
+import org.rosuda.REngine.REXPMismatchException;
+import org.rosuda.REngine.REngineException;
+
+/**
+ * Test for {@link RserveMean}.
+ * 
+ * @author Donato Rimenti
+ */
+@Ignore
+public class RserveMeanIntegrationTest {
+
+    /**
+     * Object to test.
+     */
+    private RserveMean rserveMean = new RserveMean();
+
+    /**
+     * Test for {@link RserveMeanIntegrationTest#mean(int[])}.
+     * 
+     * @throws REXPMismatchException if an error occurs
+     * @throws REngineException      if an error occurs
+     */
+    @Test
+    public void givenValues_whenMean_thenCorrect() throws REngineException, REXPMismatchException {
+        int[] input = { 1, 2, 3, 4, 5 };
+        double result = rserveMean.mean(input);
+        Assert.assertEquals(3.0, result, 0.000001);
+    }
+}