Revert "BAEL-4134"

.gitignore

@@ -85,7 +85,5 @@ transaction.log
 *-shell.log
 
 apache-cxf/cxf-aegis/baeldung.xml
-apache-fop/src/test/resources/input.xml
-apache-fop/src/test/resources/output_herold.pdf
-apache-fop/src/test/resources/output_html2fo.pdf
-apache-fop/src/test/resources/output_jtidy.pdf
+
+libraries-2/*.db

algorithms-miscellaneous-2/src/test/java/com/baeldung/jgrapht/GraphImageGenerationUnitTest.java

@@ -1,16 +1,21 @@
 package com.baeldung.jgrapht;
 
 import static org.junit.Assert.assertTrue;
+
 import java.awt.Color;
 import java.awt.image.BufferedImage;
 import java.io.File;
 import java.io.IOException;
+
 import javax.imageio.ImageIO;
+
 import org.jgrapht.ext.JGraphXAdapter;
 import org.jgrapht.graph.DefaultDirectedGraph;
 import org.jgrapht.graph.DefaultEdge;
+import org.junit.After;
 import org.junit.Before;
 import org.junit.Test;
+
 import com.mxgraph.layout.mxCircleLayout;
 import com.mxgraph.layout.mxIGraphLayout;
 import com.mxgraph.util.mxCellRenderer;
@@ -20,7 +25,7 @@ public class GraphImageGenerationUnitTest {
 
     @Before
     public void createGraph() throws IOException {
-        File imgFile = new File("src/test/resources/graph.png");
+        File imgFile = new File("src/test/resources/graph1.png");
         imgFile.createNewFile();
         g = new DefaultDirectedGraph<String, DefaultEdge>(DefaultEdge.class);
         String x1 = "x1";
@@ -34,12 +39,18 @@ public void createGraph() throws IOException {
         g.addEdge(x3, x1);
     }
 
+    @After
+    public void cleanup() {
+        File imgFile = new File("src/test/resources/graph1.png");
+        imgFile.deleteOnExit();
+    }
+
     @Test
     public void givenAdaptedGraph_whenWriteBufferedImage_ThenFileShouldExist() throws IOException {
         JGraphXAdapter<String, DefaultEdge> graphAdapter = new JGraphXAdapter<String, DefaultEdge>(g);
         mxIGraphLayout layout = new mxCircleLayout(graphAdapter);
         layout.execute(graphAdapter.getDefaultParent());
-        File imgFile = new File("src/test/resources/graph.png");
+        File imgFile = new File("src/test/resources/graph1.png");
         BufferedImage image = mxCellRenderer.createBufferedImage(graphAdapter, null, 2, Color.WHITE, true, null);
         ImageIO.write(image, "PNG", imgFile);
         assertTrue(imgFile.exists());

algorithms-miscellaneous-2/src/main/java/com/baeldung/algorithms/play2048/Play2048.java → algorithms-miscellaneous-6/src/main/java/com/baeldung/algorithms/play2048/Play2048.java

@@ -1,7 +1,7 @@
 package com.baeldung.algorithms.play2048;
 
 public class Play2048 {
-    private static final int SIZE = 3;
+    private static final int SIZE = 4;
     private static final int INITIAL_NUMBERS = 2;
 
     public static void main(String[] args) {

algorithms-sorting-2/src/main/java/com/baeldung/algorithms/quicksort/DutchNationalFlagPartioning.java

@@ -5,21 +5,21 @@
 
 public class DutchNationalFlagPartioning {
 
-    public static Partition partition(int[] a, int begin, int end) {
+    public static Partition partition(int[] input, int begin, int end) {
         int lt = begin, current = begin, gt = end;
-        int partitioningValue = a[begin];
+        int partitioningValue = input[begin];
 
         while (current <= gt) {
-            int compareCurrent = compare(a[current], partitioningValue);
+            int compareCurrent = compare(input[current], partitioningValue);
             switch (compareCurrent) {
                 case -1:
-                    swap(a, current++, lt++);
+                    swap(input, current++, lt++);
                     break;
                 case 0:
                     current++;
                     break;
                 case 1:
-                    swap(a, current, gt--);
+                    swap(input, current, gt--);
                     break;
             }
         }