Merge branch 'master' of https://github.com/eugenp/tutorials

algorithms-sorting/src/main/java/com/baeldung/algorithms/selectionsort/SelectionSort.java

@@ -0,0 +1,38 @@
+package com.baeldung.algorithms.selectionsort;
+
+public class SelectionSort {
+
+    public static void sortAscending(final int[] arr) {
+        for (int i = 0; i < arr.length - 1; i++) {
+            int minElementIndex = i;
+            for (int j = i + 1; j < arr.length; j++) {
+                if (arr[minElementIndex] > arr[j]) {
+                    minElementIndex = j;
+                }
+            }
+
+            if (minElementIndex != i) {
+                int temp = arr[i];
+                arr[i] = arr[minElementIndex];
+                arr[minElementIndex] = temp;
+            }
+        }
+    }
+
+    public static void sortDescending(final int[] arr) {
+        for (int i = 0; i < arr.length - 1; i++) {
+            int maxElementIndex = i;
+            for (int j = i + 1; j < arr.length; j++) {
+                if (arr[maxElementIndex] < arr[j]) {
+                    maxElementIndex = j;
+                }
+            }
+
+            if (maxElementIndex != i) {
+                int temp = arr[i];
+                arr[i] = arr[maxElementIndex];
+                arr[maxElementIndex] = temp;
+            }
+        }
+    }
+}

algorithms-sorting/src/test/java/com/baeldung/algorithms/selectionsort/SelectionSortUnitTest.java

@@ -0,0 +1,25 @@
+package com.baeldung.algorithms.selectionsort;
+
+import static org.junit.Assert.*;
+import static org.junit.Assert.assertArrayEquals;
+
+import org.junit.Test;
+
+public class SelectionSortUnitTest {
+
+    @Test
+    public void givenUnsortedArray_whenSelectionSort_SortAscending_thenSortedAsc() {
+        int[] input = { 5, 4, 1, 6, 2 };
+        SelectionSort.sortAscending(input);
+        int[] expected = {1, 2, 4, 5, 6};
+        assertArrayEquals("the two arrays are not equal", expected, input);
+    }
+    
+    @Test
+    public void givenUnsortedArray_whenSelectionSort_SortDescending_thenSortedDesc() {
+        int[] input = { 5, 4, 1, 6, 2 };
+        SelectionSort.sortDescending(input);
+        int[] expected = {6, 5, 4, 2, 1};
+        assertArrayEquals("the two arrays are not equal", expected, input);
+    }
+}

core-java-modules/core-java-nio/src/main/java/com/baeldung/file/Main.java

@@ -1,12 +1,13 @@
-package com.baeldung.files;
+package com.baeldung.file;
 
-import static com.baeldung.files.NumberOfLineFinder.getTotalNumberOfLinesUsingApacheCommonsIO;
-import static com.baeldung.files.NumberOfLineFinder.getTotalNumberOfLinesUsingBufferedReader;
-import static com.baeldung.files.NumberOfLineFinder.getTotalNumberOfLinesUsingGoogleGuava;
-import static com.baeldung.files.NumberOfLineFinder.getTotalNumberOfLinesUsingLineNumberReader;
-import static com.baeldung.files.NumberOfLineFinder.getTotalNumberOfLinesUsingNIOFileChannel;
-import static com.baeldung.files.NumberOfLineFinder.getTotalNumberOfLinesUsingNIOFiles;
-import static com.baeldung.files.NumberOfLineFinder.getTotalNumberOfLinesUsingScanner;
+import static com.baeldung.file.NumberOfLineFinder.getTotalNumberOfLinesUsingApacheCommonsIO;
+import static com.baeldung.file.NumberOfLineFinder.getTotalNumberOfLinesUsingBufferedReader;
+import static com.baeldung.file.NumberOfLineFinder.getTotalNumberOfLinesUsingGoogleGuava;
+import static com.baeldung.file.NumberOfLineFinder.getTotalNumberOfLinesUsingLineNumberReader;
+import static com.baeldung.file.NumberOfLineFinder.getTotalNumberOfLinesUsingNIOFileChannel;
+import static com.baeldung.file.NumberOfLineFinder.getTotalNumberOfLinesUsingNIOFiles;
+import static com.baeldung.file.NumberOfLineFinder.getTotalNumberOfLinesUsingNIOFilesReadAllLines;
+import static com.baeldung.file.NumberOfLineFinder.getTotalNumberOfLinesUsingScanner;
 
 public class Main {
 
@@ -17,6 +18,7 @@ public class Main {
         System.out.printf("Total Number of Lines Using LineNumberReader: %s%n", getTotalNumberOfLinesUsingLineNumberReader(INPUT_FILE_NAME));
         System.out.printf("Total Number of Lines Using Scanner: %s%n", getTotalNumberOfLinesUsingScanner(INPUT_FILE_NAME));
         System.out.printf("Total Number of Lines Using NIO Files: %s%n", getTotalNumberOfLinesUsingNIOFiles(INPUT_FILE_NAME));
+        System.out.printf("Total Number of Lines Using NIO Files#readAllLines: %s%n", getTotalNumberOfLinesUsingNIOFilesReadAllLines(INPUT_FILE_NAME));
         System.out.printf("Total Number of Lines Using NIO FileChannel: %s%n", getTotalNumberOfLinesUsingNIOFileChannel(INPUT_FILE_NAME));
         System.out.printf("Total Number of Lines Using Apache Commons IO: %s%n", getTotalNumberOfLinesUsingApacheCommonsIO(INPUT_FILE_NAME));
         System.out.printf("Total Number of Lines Using NIO Google Guava: %s%n", getTotalNumberOfLinesUsingGoogleGuava(INPUT_FILE_NAME));

core-java-modules/core-java-nio/src/main/java/com/baeldung/file/NumberOfLineFinder.java

@@ -1,4 +1,4 @@
-package com.baeldung.files;
+package com.baeldung.file;
 
 import java.io.BufferedReader;
 import java.io.File;
@@ -67,6 +67,17 @@ public class NumberOfLineFinder {
         return lines;
     }
 
+    public static int getTotalNumberOfLinesUsingNIOFilesReadAllLines(String fileName) {
+        int lines = 0;
+        try {
+            List<String> fileStream = Files.readAllLines(Paths.get(fileName));
+            lines = fileStream.size();
+        } catch (IOException ioe) {
+            ioe.printStackTrace();
+        }
+        return lines;
+    }
+
     public static int getTotalNumberOfLinesUsingNIOFileChannel(String fileName) {
         int lines = 1;
         try (FileChannel channel = FileChannel.open(Paths.get(fileName), StandardOpenOption.READ)) {

core-java-modules/core-java-nio/src/main/resources/input.txt

@@ -0,0 +1,45 @@
+Lorem ipsum dolor sit amet, consectetur adipiscing elit. In lacus enim, scelerisque id sapien ut, semper euismod quam. Nunc ullamcorper semper blandit. Praesent quis quam mollis, iaculis lectus a, fringilla leo. Interdum et malesuada fames ac ante ipsum primis in faucibus. Duis vitae auctor mauris. Pellentesque eu pellentesque lorem, vel ultricies libero. Pellentesque vestibulum sagittis eros. In vestibulum lacus elit. Interdum et malesuada fames ac ante ipsum primis in faucibus.
+
+Vivamus pharetra lacus fringilla nisl molestie eleifend. Donec et dolor non quam mattis mattis. Proin malesuada maximus elit id semper. Donec facilisis dolor ut feugiat auctor. Proin accumsan semper consectetur. Vivamus facilisis odio vel bibendum imperdiet. Sed rutrum nisi nec nisi interdum fringilla. Aliquam laoreet velit ullamcorper egestas ultrices. Aliquam ultricies sem sed orci interdum, eu porta purus malesuada. Sed accumsan, nunc ut maximus rhoncus, arcu ante pretium ex, non ultrices magna nisi et velit. Pellentesque tempor mi quis lacus consectetur, quis imperdiet enim efficitur. Pellentesque habitant morbi tristique senectus et netus et malesuada fames ac turpis egestas.
+
+Nunc sed maximus erat. Aenean imperdiet finibus massa ac aliquam. Interdum et malesuada fames ac ante ipsum primis in faucibus. Duis dignissim cursus purus, eu tempus urna. Nunc sed mauris scelerisque, luctus eros ut, viverra nisi. Maecenas congue sed ligula in eleifend. Praesent nec dignissim enim, dictum efficitur massa. Nullam eros dui, rutrum quis aliquam accumsan, sollicitudin cursus eros. Phasellus euismod, lorem vitae vehicula ullamcorper, leo lorem vestibulum magna, vitae malesuada libero ipsum id lorem. Aenean finibus turpis facilisis tortor bibendum, vitae dignissim dolor dictum. Ut quis ornare nisi, non rutrum sapien.
+
+Etiam placerat, est eget placerat imperdiet, neque urna tristique est, a dictum nisl dolor vitae leo. Vivamus porttitor mi vitae volutpat ultrices. Quisque at ante porta mauris ultricies iaculis. Phasellus iaculis sollicitudin urna nec facilisis. Suspendisse dapibus vulputate scelerisque. Fusce felis diam, eleifend in tristique in, malesuada a purus. Suspendisse euismod ipsum sed urna imperdiet, quis venenatis lacus dapibus. Maecenas vitae est vel sem fringilla ornare at ut mi. Quisque porta, nulla at rutrum fringilla, mi ligula egestas libero, ac convallis elit diam et sapien. Vestibulum purus tortor, ornare ut enim sed, mattis lobortis erat. Maecenas ac ante tincidunt, euismod mauris a, fermentum diam. Nullam arcu est, consequat sed enim in, bibendum aliquet velit. Donec bibendum magna ac augue sagittis vehicula. Curabitur nec mauris eu augue bibendum volutpat. Fusce fringilla varius fringilla.
+
+Aliquam faucibus massa non orci accumsan, porta consectetur diam vulputate. Nullam nec erat mollis, imperdiet libero nec, tincidunt neque. Aenean varius purus nec est auctor, sed vulputate libero varius. Lorem ipsum dolor sit amet, consectetur adipiscing elit. Praesent vel neque elit. Donec vulputate fermentum nulla, ut aliquam neque tempor in. Orci varius natoque penatibus et magnis dis parturient montes, nascetur ridiculus mus. Donec vel venenatis est. Suspendisse luctus elit quis dui dapibus, id sodales dolor cursus. Curabitur ut vehicula dui. Fusce aliquet est et ante feugiat, et tempus ex congue. Nunc eget dapibus leo. Nunc eu accumsan diam. Suspendisse risus eros, rutrum et volutpat in, consequat in nulla. Suspendisse id felis a orci accumsan iaculis.
+
+Duis tincidunt diam eget tortor aliquet sodales. Etiam sodales purus ac urna mollis, et cursus enim porttitor. Nulla viverra ligula nunc, ornare condimentum felis posuere sed. Fusce aliquet pretium sagittis. Sed ac mi elementum massa dictum ornare. Integer quis dapibus lectus. Curabitur in rhoncus justo, et vulputate justo. Integer eget efficitur felis.
+
+Sed finibus vel tortor ac egestas. Lorem ipsum dolor sit amet, consectetur adipiscing elit. Maecenas vestibulum nulla mi, blandit efficitur sapien fermentum eu. Integer sed turpis eros. Phasellus sed aliquam ligula. Etiam dictum quam in dapibus mattis. Donec et tristique quam. Pellentesque gravida luctus dolor, eu ornare sapien. Donec justo ante, lacinia non sem et, ultricies dignissim nibh. Vivamus eu nisl et magna pulvinar efficitur. Sed at vehicula lectus, sit amet luctus sem. Morbi vehicula sapien nisi, nec sagittis orci vestibulum et.
+
+Praesent non finibus diam. Quisque sit amet nisl vitae augue lobortis commodo. Morbi ullamcorper, tortor id ornare maximus, erat ipsum ullamcorper ipsum, in imperdiet diam sem vel erat. Sed pellentesque quis ex sed volutpat. Vestibulum volutpat diam ac dignissim sollicitudin. Praesent at luctus ex, at volutpat dui. Nunc nulla dui, lobortis et pharetra quis, efficitur in turpis. Donec sodales auctor purus id mollis. Sed auctor eu erat eget bibendum. Mauris tincidunt ornare neque id consequat. Suspendisse non massa ante. Quisque velit enim, rhoncus at erat eget, scelerisque placerat elit. Donec finibus luctus dolor. In sed eleifend lorem. Sed tempor ullamcorper lorem nec tristique. Fusce nec volutpat neque, id elementum est.
+
+Orci varius natoque penatibus et magnis dis parturient montes, nascetur ridiculus mus. Vestibulum mattis elementum tellus, vitae maximus nulla eleifend ut. Vestibulum eu nibh vulputate, posuere felis eget, aliquet ex. Nullam leo ex, lacinia a ante ac, accumsan efficitur ligula. Vestibulum ornare gravida tempus. Proin rhoncus felis sit amet dolor commodo facilisis. Integer aliquet, diam sed pharetra feugiat, sem massa mollis orci, eget pretium libero nunc at quam. Ut rhoncus quam vitae massa hendrerit, ornare condimentum odio varius. Donec odio sapien, tristique eget libero ac, interdum facilisis odio. Phasellus nec mauris vel dolor semper mattis et quis ligula. Donec nec porttitor nunc. Integer maximus quam vitae sem gravida, ut commodo ex porttitor.
+
+Sed cursus nisi turpis, vel laoreet massa blandit ut. Cras posuere velit nulla, nec pellentesque ipsum dignissim eget. Donec pharetra, ex et commodo viverra, leo dolor dapibus tellus, vel dignissim est sem ac lectus. Quisque a arcu dapibus, aliquet magna sed, rhoncus neque. Integer suscipit, nulla ac varius lacinia, orci metus scelerisque neque, a laoreet nibh risus vitae dolor. Pellentesque felis metus, pulvinar vel cursus id, ultrices non purus. Donec mi lectus, faucibus sit amet nunc at, sagittis pretium lectus. Fusce nec purus arcu. Mauris neque neque, blandit eget mi at, auctor tempus orci. Mauris sapien lorem, luctus nec tellus non, porttitor aliquam dui.
+
+Mauris non ex risus. Aliquam imperdiet in eros eget placerat. Sed congue sed sapien porta sollicitudin. Phasellus tempor hendrerit metus vitae tincidunt. Suspendisse congue nisi sed augue dapibus, at pretium ante mollis. Cras non posuere nulla. Proin malesuada finibus magna vel iaculis. Cras in dapibus lorem. Pellentesque volutpat dolor sit amet magna tincidunt mollis. Nunc et lectus sodales, accumsan est vitae, ornare augue. Maecenas malesuada arcu leo, eget blandit lectus porttitor et. Nam aliquam sapien sit amet purus consequat lobortis. Aenean varius, augue porta dignissim efficitur, felis velit dapibus leo, tincidunt ultricies magna felis id ligula. Duis hendrerit, lectus eu elementum euismod, elit lectus consequat mi, sit amet egestas justo massa ut urna. Proin eleifend interdum ultrices.
+
+Donec lacinia orci pharetra ornare tincidunt. Nulla facilisi. Maecenas malesuada dui ac elit sagittis tincidunt id dictum dolor. Quisque lobortis purus ac metus volutpat viverra. Proin finibus sapien ut odio semper consectetur. Sed gravida luctus egestas. Mauris pretium volutpat elit, at commodo arcu sagittis nec. Ut condimentum fringilla urna ac dignissim. Cras aliquam metus pulvinar, pulvinar nibh at, placerat arcu. Nulla ornare tortor sed lectus mollis, vitae fringilla tellus egestas. Vivamus efficitur tincidunt sapien, sed finibus mi congue eu. Nullam magna velit, lacinia vitae ligula eget, molestie consectetur felis. Suspendisse varius turpis orci, ac laoreet arcu accumsan sed. Fusce quis fermentum lacus, nec varius libero. Pellentesque ac odio ut justo lobortis elementum sit amet vehicula lorem. Nulla interdum nulla eget mi tristique, vitae egestas nunc egestas.
+
+Curabitur commodo libero eu elit tincidunt, quis placerat risus vehicula. Vestibulum vehicula id nunc iaculis fermentum. Aenean semper, tellus ac semper rutrum, justo lorem feugiat leo, quis vulputate neque dui non ligula. Etiam egestas, enim eget tempor porta, nunc est tristique ante, vel suscipit massa lorem vel diam. Donec faucibus ante id turpis rhoncus congue. Nullam laoreet, diam efficitur scelerisque consequat, ligula leo ultrices est, non fermentum elit mauris ut dolor. Morbi non porttitor lorem. Sed volutpat sapien et lorem porttitor, ultricies ultricies tellus congue. Mauris sodales, tortor nec sagittis finibus, dui odio aliquet nibh, in luctus sapien massa eu risus. Nulla in est sed ante molestie vehicula vel nec lectus. Fusce maximus a quam eget aliquam. Vivamus pulvinar quis nisi a maximus. Proin cursus lacus sapien, et hendrerit elit pretium a. Donec tellus lectus, consectetur id dolor a, luctus rutrum libero. Suspendisse auctor scelerisque dui, nec pellentesque felis viverra nec. Cras elit ex, varius sed pulvinar sed, suscipit ultrices lacus.
+
+Vivamus eu luctus lectus. Maecenas congue magna orci, quis semper nulla blandit vel. Phasellus dignissim risus placerat lacinia sagittis. Praesent at gravida nisi, at pulvinar diam. Nulla egestas lectus sed felis facilisis egestas. Curabitur posuere gravida urna eu vestibulum. Pellentesque at dolor gravida, placerat quam sit amet, fermentum ligula. Morbi fringilla, mi eget mollis dictum, neque dolor ullamcorper leo, a rutrum libero ipsum eget orci. Curabitur consectetur iaculis vestibulum. Suspendisse ultricies ligula et neque lacinia luctus. Sed dignissim neque id eros sollicitudin pellentesque.
+
+Donec et magna quis lectus pharetra finibus a fringilla sapien. Phasellus accumsan, erat eu sodales cursus, tortor elit dapibus risus, ut ornare neque arcu in tellus. Nam ac vehicula diam, at aliquam nisl. Cras in sem eget nisi ultrices rutrum sit amet eu velit. Sed molestie tellus eget ante scelerisque, sit amet pulvinar neque fringilla. Nunc volutpat facilisis egestas. Cras sodales dui ac massa egestas, in mattis leo rhoncus. Pellentesque vitae urna vehicula ipsum sodales suscipit. Sed commodo tempus fringilla.
+
+Etiam egestas elit vitae mi maximus fringilla quis eget libero. Fusce finibus ultrices tellus at molestie. Pellentesque posuere blandit elementum. Etiam eu erat eu urna hendrerit euismod. Nulla quis lectus rhoncus, ultricies urna eget, pretium neque. Cras sit amet ipsum sit amet purus rutrum ultricies nec vitae tortor. Sed tempor dapibus augue in pulvinar. Ut pretium sapien in malesuada accumsan. Donec eget ultrices erat, ut efficitur ligula. Sed posuere mauris est, nec convallis ipsum tempus non.
+
+Duis a ullamcorper ante. Quisque eu ultricies metus, at aliquet odio. Nullam tempus molestie augue ut varius. Fusce purus eros, dictum nec finibus sed, sodales et diam. Suspendisse sed mi purus. Donec eleifend ipsum diam, nec fringilla enim laoreet non. Phasellus condimentum, magna sit amet porttitor suscipit, arcu risus lobortis dolor, ac fringilla nibh nisl vel purus. Phasellus facilisis posuere orci sit amet tempus. Nam nec enim maximus, rhoncus felis a, rutrum diam.
+
+Suspendisse potenti. Donec vel tempor neque. In aliquet nulla in eleifend bibendum. Sed sapien sem, finibus in sodales vitae, euismod in sem. Phasellus nec elit a erat pulvinar semper. Aliquam luctus nisl in libero molestie aliquam. Nunc ac ornare felis. Ut non mauris ut ipsum rhoncus pretium. Curabitur tristique lacus a sagittis aliquam. Morbi vel volutpat tellus. Maecenas volutpat, lacus sed tempus imperdiet, eros tellus volutpat nisi, a egestas augue nulla quis arcu. In sollicitudin imperdiet efficitur. Suspendisse viverra aliquet nisi, congue ultrices arcu hendrerit in.
+
+Maecenas vitae vestibulum nunc. Nullam semper faucibus tincidunt. Etiam sed hendrerit risus. Proin gravida, urna nec tincidunt tempus, nulla sapien porttitor nibh, porttitor lobortis nunc quam et tortor. Praesent ut varius lacus, ut hendrerit enim. Ut nec turpis ac felis imperdiet bibendum. Phasellus porttitor enim odio, et vehicula mi convallis vel. Quisque porta scelerisque sagittis. Praesent dignissim sagittis vulputate. Aenean non justo ac est volutpat bibendum. Aliquam mattis, sapien dapibus pellentesque semper, velit urna malesuada diam, nec varius nibh eros at erat. Proin leo ante, ultricies id velit ut, faucibus porta nibh. Sed nec fermentum urna, sed mollis leo. Aliquam erat volutpat.
+
+Donec condimentum, urna sed hendrerit vestibulum, ante nibh lacinia dui, in tincidunt odio sem eget orci. In hac habitasse platea dictumst. Mauris id ex id ante tempus finibus eu sagittis erat. Quisque interdum urna risus, vel varius nibh euismod non. Nulla eget pellentesque quam. Aliquam vestibulum ac tortor non lobortis. Sed vitae erat sed libero dignissim dictum nec in turpis. Vivamus id ornare elit, ut facilisis lectus. Morbi dictum purus eget ipsum dignissim porttitor. Sed at vehicula purus, nec rhoncus quam. Nunc a nisl quis arcu blandit fermentum vel quis odio. Vivamus rhoncus, sapien sed lacinia hendrerit, velit urna fermentum dolor, id feugiat magna ligula sed urna. Proin euismod efficitur libero, eget porttitor lacus tempus quis. Duis tincidunt quis est a laoreet. Nam sit amet tristique nisl, sit amet mattis mi.
+
+Aenean id dictum nulla, sed laoreet magna. Morbi consectetur in turpis at aliquam. Maecenas rutrum feugiat metus, at ullamcorper augue fermentum ut. Vivamus in magna pretium nibh dictum rhoncus luctus at orci. In hac habitasse platea dictumst. Fusce convallis, nulla nec hendrerit suscipit, ipsum diam lobortis sem, vitae elementum lectus erat sit amet magna. Quisque sollicitudin fringilla purus, ac molestie justo congue vitae. Nulla sapien leo, ullamcorper ac tellus in, cursus rhoncus enim. Suspendisse rutrum magna non ex elementum elementum id vitae enim. Pellentesque habitant morbi tristique senectus et netus et malesuada fames ac turpis egestas. Suspendisse ornare libero eu molestie pulvinar. Phasellus faucibus, magna eget rutrum porta, lorem turpis blandit lectus, eu viverra massa risus et ex.
+
+Ut consectetur eros lacus, ac ullamcorper lacus mattis a. Cras congue justo ut erat interdum, et scelerisque nisi malesuada. Quisque sed sapien sollicitudin purus tincidunt finibus vestibulum vel dolor. Cras iaculis bibendum erat, a dictum urna viverra et. Integer non neque vulputate, tincidunt purus nec, rutrum arcu. Aliquam nec magna non sem semper laoreet quis at quam. Mauris dui lectus, convallis eu efficitur at, facilisis nec lorem. Cras felis sem, egestas ac rutrum vel, mollis et ex. Aenean semper egestas libero, nec commodo mi blandit efficitur. Duis nec quam in massa dignissim sagittis vel vitae leo. Nam molestie hendrerit auctor.
+
+Sed suscipit egestas tellus sed cursus. Donec vel massa sit amet dui condimentum accumsan. Phasellus libero eros, lobortis a nisi id, porttitor maximus lectus. Praesent consectetur diam urna, id viverra turpis elementum in. Vivamus vitae pretium justo, nec tempor felis. Vivamus volutpat ultricies magna. Suspendisse vulputate lectus ac orci volutpat ullamcorper. Nulla eu leo pretium, commodo arcu accumsan, tempor nisl. Fusce sit amet tellus a ipsum vehicula laoreet sed vitae mauris. Duis porttitor massa mattis nibh placerat consequat. Fusce rutrum commodo tortor eget pellentesque. Suspendisse tempor enim libero, consequat dictum nibh dictum varius. Pellentesque feugiat sit amet urna sed facilisis. Curabitur a sagittis augue.

core-java-modules/core-java-nio/src/test/java/com/baeldung/file/NumberOfLineFinderUnitTest.java

@@ -1,12 +1,13 @@
 package com.baeldung.file;
 
-import static com.baeldung.files.NumberOfLineFinder.getTotalNumberOfLinesUsingApacheCommonsIO;
-import static com.baeldung.files.NumberOfLineFinder.getTotalNumberOfLinesUsingBufferedReader;
-import static com.baeldung.files.NumberOfLineFinder.getTotalNumberOfLinesUsingGoogleGuava;
-import static com.baeldung.files.NumberOfLineFinder.getTotalNumberOfLinesUsingLineNumberReader;
-import static com.baeldung.files.NumberOfLineFinder.getTotalNumberOfLinesUsingNIOFileChannel;
-import static com.baeldung.files.NumberOfLineFinder.getTotalNumberOfLinesUsingNIOFiles;
-import static com.baeldung.files.NumberOfLineFinder.getTotalNumberOfLinesUsingScanner;
+import static com.baeldung.file.NumberOfLineFinder.getTotalNumberOfLinesUsingApacheCommonsIO;
+import static com.baeldung.file.NumberOfLineFinder.getTotalNumberOfLinesUsingBufferedReader;
+import static com.baeldung.file.NumberOfLineFinder.getTotalNumberOfLinesUsingGoogleGuava;
+import static com.baeldung.file.NumberOfLineFinder.getTotalNumberOfLinesUsingLineNumberReader;
+import static com.baeldung.file.NumberOfLineFinder.getTotalNumberOfLinesUsingNIOFileChannel;
+import static com.baeldung.file.NumberOfLineFinder.getTotalNumberOfLinesUsingNIOFiles;
+import static com.baeldung.file.NumberOfLineFinder.getTotalNumberOfLinesUsingNIOFilesReadAllLines;
+import static com.baeldung.file.NumberOfLineFinder.getTotalNumberOfLinesUsingScanner;
 import static org.junit.Assert.assertEquals;
 
 import org.junit.Test;
@@ -39,6 +40,12 @@ public class NumberOfLineFinderUnitTest {
         assertEquals(ACTUAL_LINE_COUNT, lines);
     }
 
+    @Test
+    public void whenUsingNIOFilesReadAllLines_thenReturnTotalNumberOfLines() {
+        int lines = getTotalNumberOfLinesUsingNIOFilesReadAllLines(INPUT_FILE_NAME);
+        assertEquals(ACTUAL_LINE_COUNT, lines);
+    }
+
     @Test
     public void whenUsingNIOFileChannel_thenReturnTotalNumberOfLines() {
         int lines = getTotalNumberOfLinesUsingNIOFileChannel(INPUT_FILE_NAME);

core-java-modules/core-java-security/src/test/java/com/baeldung/jgss/JgssIntegrationTest.java

@@ -0,0 +1,75 @@
+package com.baeldung.jgss;
+
+import static org.junit.Assert.assertTrue;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+
+import javax.security.sasl.SaslException;
+
+import org.ietf.jgss.GSSContext;
+import org.ietf.jgss.GSSCredential;
+import org.ietf.jgss.GSSException;
+import org.ietf.jgss.GSSManager;
+import org.ietf.jgss.GSSName;
+import org.ietf.jgss.MessageProp;
+import org.ietf.jgss.Oid;
+import org.junit.After;
+import org.junit.Before;
+import org.junit.Ignore;
+import org.junit.Test;
+
+@Ignore
+public class JgssIntegrationTest {
+    
+    private static final String SERVER_PRINCIPAL = "HTTP/localhost@EXAMPLE.COM";
+    private static final String MECHANISM = "1.2.840.113554.1.2.2";
+
+    GSSContext serverContext;
+    GSSContext clientContext;
+
+    @Before
+    public void setUp() throws SaslException, GSSException {
+        GSSManager manager = GSSManager.getInstance();
+        serverContext = manager.createContext((GSSCredential) null);
+        String serverPrinciple = SERVER_PRINCIPAL;
+        GSSName serverName = manager.createName(serverPrinciple, null);
+        Oid krb5Oid = new Oid(MECHANISM);
+        clientContext = manager.createContext(
+            serverName, krb5Oid, (GSSCredential) null, GSSContext.DEFAULT_LIFETIME);
+        clientContext.requestMutualAuth(true);
+        clientContext.requestConf(true);
+        clientContext.requestInteg(true);
+    }
+
+    @Test
+    public void givenCredential_whenStarted_thenAutenticationWorks() throws SaslException, GSSException {
+        byte[] serverToken = new byte[0];
+        byte[] clientToken = new byte[0];
+        clientToken = clientContext.initSecContext(clientToken, 0, clientToken.length);
+        serverToken = clientToken;
+        serverToken = serverContext.acceptSecContext(serverToken, 0, serverToken.length);
+        clientToken = serverToken;
+        clientToken = clientContext.initSecContext(clientToken, 0, clientToken.length);
+        assertTrue(serverContext.isEstablished());
+        assertTrue(clientContext.isEstablished());
+    }
+
+    @Test
+    public void givenContext_whenStarted_thenSecurityWorks() throws SaslException, GSSException {
+        byte[] messageBytes = "Baeldung".getBytes();
+        MessageProp clientProp = new MessageProp(0, true);
+        byte[] clientToken = clientContext.wrap(messageBytes, 0, messageBytes.length, clientProp);
+        byte[] serverToken = clientToken;
+        MessageProp serverProp = new MessageProp(0, false);
+        byte[] bytes = serverContext.unwrap(serverToken, 0, serverToken.length, serverProp);
+        clientContext.verifyMIC(serverToken, 0, serverToken.length, bytes, 0, bytes.length, serverProp);
+        String string = new String(bytes);
+        assertEquals("Baeldung", string);
+    }
+
+    @After
+    public void tearDown() throws SaslException, GSSException {
+        serverContext.dispose();
+        clientContext.dispose();
+    }
+
+}

intelliJ/intelliJ-formatter.xml

@@ -1,19 +1,15 @@
-<code_scheme name="baeldung">
+<code_scheme name="baeldung-formatter" version="173">
   <option name="RIGHT_MARGIN" value="260" />
-  <option name="ENABLE_JAVADOC_FORMATTING" value="false" />
   <option name="FORMATTER_TAGS_ENABLED" value="true" />
   <JavaCodeStyleSettings>
-    <option name="SPACE_AFTER_CLOSING_ANGLE_BRACKET_IN_TYPE_ARGUMENT" value="true" />
-    <option name="DO_NOT_WRAP_AFTER_SINGLE_ANNOTATION" value="true" />
-    <option name="ALIGN_MULTILINE_ANNOTATION_PARAMETERS" value="true" />
+    <option name="CLASS_COUNT_TO_USE_IMPORT_ON_DEMAND" value="500" />
+    <option name="NAMES_COUNT_TO_USE_IMPORT_ON_DEMAND" value="300" />
+    <option name="ENABLE_JAVADOC_FORMATTING" value="false" />
   </JavaCodeStyleSettings>
-  <JetCodeStyleSettings>
-    <option name="NAME_COUNT_TO_USE_STAR_IMPORT" value="99" />
-    <option name="NAME_COUNT_TO_USE_STAR_IMPORT_FOR_MEMBERS" value="99" />
-  </JetCodeStyleSettings>
   <codeStyleSettings language="JAVA">
     <option name="KEEP_LINE_BREAKS" value="false" />
     <option name="KEEP_FIRST_COLUMN_COMMENT" value="false" />
+    <option name="KEEP_CONTROL_STATEMENT_IN_ONE_LINE" value="false" />
     <option name="KEEP_BLANK_LINES_IN_DECLARATIONS" value="1" />
     <option name="KEEP_BLANK_LINES_IN_CODE" value="1" />
     <option name="KEEP_BLANK_LINES_BEFORE_RBRACE" value="1" />
@@ -29,19 +25,18 @@
     <option name="THROWS_LIST_WRAP" value="1" />
     <option name="EXTENDS_KEYWORD_WRAP" value="1" />
     <option name="THROWS_KEYWORD_WRAP" value="1" />
-    <option name="METHOD_CALL_CHAIN_WRAP" value="2" />
-    <option name="WRAP_FIRST_METHOD_IN_CALL_CHAIN" value="true" />
+    <option name="METHOD_CALL_CHAIN_WRAP" value="5" />
     <option name="BINARY_OPERATION_WRAP" value="1" />
     <option name="BINARY_OPERATION_SIGN_ON_NEXT_LINE" value="true" />
     <option name="TERNARY_OPERATION_WRAP" value="5" />
-    <option name="TERNARY_OPERATION_SIGNS_ON_NEXT_LINE" value="true" />
     <option name="ARRAY_INITIALIZER_WRAP" value="1" />
-    <option name="ARRAY_INITIALIZER_LBRACE_ON_NEXT_LINE" value="true" />
-    <option name="ARRAY_INITIALIZER_RBRACE_ON_NEXT_LINE" value="true" />
-    <option name="PLACE_ASSIGNMENT_SIGN_ON_NEXT_LINE" value="true" />
+    <option name="METHOD_ANNOTATION_WRAP" value="0" />
+    <option name="CLASS_ANNOTATION_WRAP" value="0" />
+    <option name="FIELD_ANNOTATION_WRAP" value="0" />
     <indentOptions>
-      <option name="CONTINUATION_INDENT_SIZE" value="2" />
-      <option name="TAB_SIZE" value="8" />
+      <option name="INDENT_SIZE" value="8" />
+      <option name="CONTINUATION_INDENT_SIZE" value="4" />
+      <option name="SMART_TABS" value="true" />
     </indentOptions>
   </codeStyleSettings>
 </code_scheme>

java-math/pom.xml

@@ -17,6 +17,26 @@
             <artifactId>commons-math3</artifactId>
             <version>${commons-math3.version}</version>
         </dependency>
+        <dependency>
+            <groupId>org.ejml</groupId>
+            <artifactId>ejml-all</artifactId>
+            <version>${ejml.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>org.nd4j</groupId>
+            <artifactId>nd4j-native</artifactId>
+            <version>${nd4j.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>org.la4j</groupId>
+            <artifactId>la4j</artifactId>
+            <version>${la4j.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>colt</groupId>
+            <artifactId>colt</artifactId>
+            <version>${colt.version}</version>
+        </dependency>
         <dependency>
             <groupId>com.google.guava</groupId>
             <artifactId>guava</artifactId>
@@ -44,6 +64,17 @@
             <artifactId>combinatoricslib3</artifactId>
             <version>${combinatoricslib3.version}</version>
          </dependency>
+        <!-- Benchmarking -->
+        <dependency>
+            <groupId>org.openjdk.jmh</groupId>
+            <artifactId>jmh-core</artifactId>
+            <version>${jmh.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>org.openjdk.jmh</groupId>
+            <artifactId>jmh-generator-annprocess</artifactId>
+            <version>${jmh.version}</version>
+        </dependency>
     </dependencies>
 
     <build>
@@ -64,6 +95,11 @@
         <commons-codec.version>1.11</commons-codec.version>
         <guava.version>27.0.1-jre</guava.version>
         <combinatoricslib3.version>3.3.0</combinatoricslib3.version>
+        <ejml.version>0.38</ejml.version>
+        <nd4j.version>1.0.0-beta4</nd4j.version>
+        <colt.version>1.2.0</colt.version>
+        <la4j.version>0.6.0</la4j.version>
+        <jmh.version>1.19</jmh.version>
     </properties>
 
 </project>

java-numbers-2/src/main/java/com/baeldung/binarynumbers/BinaryNumbers.java

@@ -16,18 +16,16 @@ public class BinaryNumbers {
         }
 
         StringBuilder binaryNumber = new StringBuilder();
+        Integer quotient = decimalNumber;
 
-        while (decimalNumber > 0) {
-
-            int remainder = decimalNumber % 2;
-            int result = decimalNumber / 2;
+        while (quotient > 0) {
 
+            int remainder = quotient % 2;
             binaryNumber.append(remainder);
-            decimalNumber = result;
+            quotient /= 2;
         }
 
         binaryNumber = binaryNumber.reverse();
-
         return Integer.valueOf(binaryNumber.toString());
     }
 
@@ -40,7 +38,7 @@ public class BinaryNumbers {
      */
     public Integer convertBinaryToDecimal(Integer binaryNumber) {
 
-        Integer result = 0;
+        Integer decimalNumber = 0;
         Integer base = 1;
 
         while (binaryNumber > 0) {
@@ -48,11 +46,10 @@ public class BinaryNumbers {
             int lastDigit = binaryNumber % 10;
             binaryNumber = binaryNumber / 10;
 
-            result += lastDigit * base;
-
+            decimalNumber += lastDigit * base;
             base = base * 2;
         }
-        return result;
+        return decimalNumber;
     }
 
     /**
@@ -99,9 +96,7 @@ public class BinaryNumbers {
     public Integer substractBinaryNumber(Integer firstNum, Integer secondNum) {
 
         int onesComplement = Integer.valueOf(getOnesComplement(secondNum));
-
         StringBuilder output = new StringBuilder();
-
         int carry = 0;
         int temp;
 
@@ -124,13 +119,11 @@ public class BinaryNumbers {
         } else {
             return getOnesComplement(Integer.valueOf(additionOfFirstNumAndOnesComplement));
         }
-
     }
 
     public Integer getOnesComplement(Integer num) {
 
         StringBuilder onesComplement = new StringBuilder();
-
         while (num > 0) {
             int lastDigit = num % 10;
             if (lastDigit == 0) {
@@ -140,7 +133,6 @@ public class BinaryNumbers {
             }
             num = num / 10;
         }
-
         return Integer.valueOf(onesComplement.reverse()
             .toString());
     }

jenkins/README.md

@@ -1,3 +1,2 @@
-## Relevant articles:
 
-- [Writing a Jenkins Plugin](http://www.baeldung.com/jenkins-custom-plugin)
+This is an aggregator modules for Jenkins-related modules.

jenkins/hello-world/README.md

@@ -0,0 +1,3 @@
+## Relevant articles:
+
+- [Writing a Jenkins Plugin](http://www.baeldung.com/jenkins-custom-plugin)

jhipster-5/README.md

@@ -1,3 +1,2 @@
-## Relevant articles:
 
-- [Creating New APIs and Views in JHipster](https://www.baeldung.com/jhipster-new-apis-and-views)
+This is an aggregator module for JHipster 5 modules.

jhipster-5/bookstore-monolith/README.md

@@ -1,179 +1,3 @@
-# Bookstore
+## Relevant articles:
 
-This application was generated using JHipster 5.8.2, you can find documentation and help at [https://www.jhipster.tech/documentation-archive/v5.8.2](https://www.jhipster.tech/documentation-archive/v5.8.2).
-
-## Development
-
-Before you can build this project, you must install and configure the following dependencies on your machine:
-
-1.  [Node.js][]: We use Node to run a development web server and build the project.
-    Depending on your system, you can install Node either from source or as a pre-packaged bundle.
-
-After installing Node, you should be able to run the following command to install development tools.
-You will only need to run this command when dependencies change in [package.json](package.json).
-
-    npm install
-
-We use npm scripts and [Webpack][] as our build system.
-
-Run the following commands in two separate terminals to create a blissful development experience where your browser
-auto-refreshes when files change on your hard drive.
-
-    ./mvnw
-    npm start
-
-Npm is also used to manage CSS and JavaScript dependencies used in this application. You can upgrade dependencies by
-specifying a newer version in [package.json](package.json). You can also run `npm update` and `npm install` to manage dependencies.
-Add the `help` flag on any command to see how you can use it. For example, `npm help update`.
-
-The `npm run` command will list all of the scripts available to run for this project.
-
-### Service workers
-
-Service workers are commented by default, to enable them please uncomment the following code.
-
--   The service worker registering script in index.html
-
-```html
-<script>
-    if ('serviceWorker' in navigator) {
-        navigator.serviceWorker.register('./service-worker.js').then(function() {
-            console.log('Service Worker Registered');
-        });
-    }
-</script>
-```
-
-Note: workbox creates the respective service worker and dynamically generate the `service-worker.js`
-
-### Managing dependencies
-
-For example, to add [Leaflet][] library as a runtime dependency of your application, you would run following command:
-
-    npm install --save --save-exact leaflet
-
-To benefit from TypeScript type definitions from [DefinitelyTyped][] repository in development, you would run following command:
-
-    npm install --save-dev --save-exact @types/leaflet
-
-Then you would import the JS and CSS files specified in library's installation instructions so that [Webpack][] knows about them:
-Edit [src/main/webapp/app/vendor.ts](src/main/webapp/app/vendor.ts) file:
-
-```
-import 'leaflet/dist/leaflet.js';
-```
-
-Edit [src/main/webapp/content/css/vendor.css](src/main/webapp/content/css/vendor.css) file:
-
-```
-@import '~leaflet/dist/leaflet.css';
-```
-
-Note: there are still few other things remaining to do for Leaflet that we won't detail here.
-
-For further instructions on how to develop with JHipster, have a look at [Using JHipster in development][].
-
-### Using angular-cli
-
-You can also use [Angular CLI][] to generate some custom client code.
-
-For example, the following command:
-
-    ng generate component my-component
-
-will generate few files:
-
-    create src/main/webapp/app/my-component/my-component.component.html
-    create src/main/webapp/app/my-component/my-component.component.ts
-    update src/main/webapp/app/app.module.ts
-
-## Building for production
-
-To optimize the Bookstore application for production, run:
-
-    ./mvnw -Pprod clean package
-
-This will concatenate and minify the client CSS and JavaScript files. It will also modify `index.html` so it references these new files.
-To ensure everything worked, run:
-
-    java -jar target/*.war
-
-Then navigate to [http://localhost:8080](http://localhost:8080) in your browser.
-
-Refer to [Using JHipster in production][] for more details.
-
-## Testing
-
-To launch your application's tests, run:
-
-    ./mvnw clean test
-
-### Client tests
-
-Unit tests are run by [Jest][] and written with [Jasmine][]. They're located in [src/test/javascript/](src/test/javascript/) and can be run with:
-
-    npm test
-
-For more information, refer to the [Running tests page][].
-
-### Code quality
-
-Sonar is used to analyse code quality. You can start a local Sonar server (accessible on http://localhost:9001) with:
-
-```
-docker-compose -f src/main/docker/sonar.yml up -d
-```
-
-Then, run a Sonar analysis:
-
-```
-./mvnw -Pprod clean test sonar:sonar
-```
-
-For more information, refer to the [Code quality page][].
-
-## Using Docker to simplify development (optional)
-
-You can use Docker to improve your JHipster development experience. A number of docker-compose configuration are available in the [src/main/docker](src/main/docker) folder to launch required third party services.
-
-For example, to start a mysql database in a docker container, run:
-
-    docker-compose -f src/main/docker/mysql.yml up -d
-
-To stop it and remove the container, run:
-
-    docker-compose -f src/main/docker/mysql.yml down
-
-You can also fully dockerize your application and all the services that it depends on.
-To achieve this, first build a docker image of your app by running:
-
-    ./mvnw package -Pprod verify jib:dockerBuild
-
-Then run:
-
-    docker-compose -f src/main/docker/app.yml up -d
-
-For more information refer to [Using Docker and Docker-Compose][], this page also contains information on the docker-compose sub-generator (`jhipster docker-compose`), which is able to generate docker configurations for one or several JHipster applications.
-
-## Continuous Integration (optional)
-
-To configure CI for your project, run the ci-cd sub-generator (`jhipster ci-cd`), this will let you generate configuration files for a number of Continuous Integration systems. Consult the [Setting up Continuous Integration][] page for more information.
-
-[jhipster homepage and latest documentation]: https://www.jhipster.tech
-[jhipster 5.8.2 archive]: https://www.jhipster.tech/documentation-archive/v5.8.2
-[using jhipster in development]: https://www.jhipster.tech/documentation-archive/v5.8.2/development/
-[using docker and docker-compose]: https://www.jhipster.tech/documentation-archive/v5.8.2/docker-compose
-[using jhipster in production]: https://www.jhipster.tech/documentation-archive/v5.8.2/production/
-[running tests page]: https://www.jhipster.tech/documentation-archive/v5.8.2/running-tests/
-[code quality page]: https://www.jhipster.tech/documentation-archive/v5.8.2/code-quality/
-[setting up continuous integration]: https://www.jhipster.tech/documentation-archive/v5.8.2/setting-up-ci/
-[node.js]: https://nodejs.org/
-[yarn]: https://yarnpkg.org/
-[webpack]: https://webpack.github.io/
-[angular cli]: https://cli.angular.io/
-[browsersync]: http://www.browsersync.io/
-[jest]: https://facebook.github.io/jest/
-[jasmine]: http://jasmine.github.io/2.0/introduction.html
-[protractor]: https://angular.github.io/protractor/
-[leaflet]: http://leafletjs.com/
-[definitelytyped]: http://definitelytyped.org/
+- [Creating New APIs and Views in JHipster](https://www.baeldung.com/jhipster-new-apis-and-views)

libraries-2/pom.xml

@@ -59,26 +59,6 @@
             <artifactId>picocli</artifactId>
             <version>${picocli.version}</version>
         </dependency>
-        <dependency>
-            <groupId>org.ejml</groupId>
-            <artifactId>ejml-all</artifactId>
-            <version>${ejml.version}</version>
-        </dependency>
-        <dependency>
-            <groupId>org.nd4j</groupId>
-            <artifactId>nd4j-native</artifactId>
-            <version>${nd4j.version}</version>
-        </dependency>
-        <dependency>
-            <groupId>org.la4j</groupId>
-            <artifactId>la4j</artifactId>
-            <version>${la4j.version}</version>
-        </dependency>
-        <dependency>
-            <groupId>colt</groupId>
-            <artifactId>colt</artifactId>
-            <version>${colt.version}</version>
-        </dependency>
         <dependency>
             <groupId>org.springframework.boot</groupId>
             <artifactId>spring-boot-starter</artifactId>
@@ -127,17 +107,6 @@
             <artifactId>handlebars</artifactId>
             <version>${handlebars.version}</version>
         </dependency>
-        <!-- Benchmarking -->
-        <dependency>
-            <groupId>org.openjdk.jmh</groupId>
-            <artifactId>jmh-core</artifactId>
-            <version>${jmh.version}</version>
-        </dependency>
-        <dependency>
-            <groupId>org.openjdk.jmh</groupId>
-            <artifactId>jmh-generator-annprocess</artifactId>
-            <version>${jmh.version}</version>
-        </dependency>
         <dependency>
             <groupId>org.apache.mesos</groupId>
             <artifactId>mesos</artifactId>
@@ -154,11 +123,6 @@
         <chronicle.map.version>3.17.2</chronicle.map.version>
         <crawler4j.version>4.4.0</crawler4j.version>
         <spring-boot-starter.version>2.1.4.RELEASE</spring-boot-starter.version>
-        <ejml.version>0.38</ejml.version>
-        <nd4j.version>1.0.0-beta4</nd4j.version>
-        <colt.version>1.2.0</colt.version>
-        <la4j.version>0.6.0</la4j.version>
-        <jmh.version>1.19</jmh.version>
         <mesos.library.version>0.28.3</mesos.library.version>
         <parallel-collectors.version>1.1.0</parallel-collectors.version>
         <okhttp.version>3.14.2</okhttp.version>

libraries-data-2/README.md

@@ -0,0 +1,11 @@
+### Relevant articles
+- [Introduction to Apache Flink with Java](http://www.baeldung.com/apache-flink)
+- [Guide to the HyperLogLog Algorithm](http://www.baeldung.com/java-hyperloglog)
+- [Introduction to Conflict-Free Replicated Data Types](http://www.baeldung.com/java-conflict-free-replicated-data-types)
+- [Introduction to javax.measure](http://www.baeldung.com/javax-measure)
+- [Introduction To Docx4J](http://www.baeldung.com/docx4j)
+- [Interact with Google Sheets from Java](http://www.baeldung.com/google-sheets-java-client)
+- [Introduction To OpenCSV](http://www.baeldung.com/opencsv)
+- [Introduction to Smooks](http://www.baeldung.com/smooks)
+- [A Guide to Infinispan in Java](http://www.baeldung.com/infinispan)
+

libraries-data-2/log4j.properties

@@ -0,0 +1 @@
+log4j.rootLogger=INFO, stdout

libraries-data-2/pom.xml

@@ -0,0 +1,145 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+
+    <modelVersion>4.0.0</modelVersion>
+    <artifactId>libraries-data-2</artifactId>
+    <name>libraries-data-2</name>
+
+    <parent>
+        <groupId>com.baeldung</groupId>
+        <artifactId>parent-modules</artifactId>
+        <version>1.0.0-SNAPSHOT</version>
+    </parent>
+
+    <dependencies>
+        <dependency>
+            <groupId>org.apache.flink</groupId>
+            <artifactId>flink-connector-kafka-0.11_2.11</artifactId>
+            <version>${flink.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.flink</groupId>
+            <artifactId>flink-streaming-java_2.11</artifactId>
+            <version>${flink.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.flink</groupId>
+            <artifactId>flink-core</artifactId>
+            <version>${flink.version}</version>
+            <exclusions>
+                <exclusion>
+                    <artifactId>commons-logging</artifactId>
+                    <groupId>commons-logging</groupId>
+                </exclusion>
+            </exclusions>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.flink</groupId>
+            <artifactId>flink-java</artifactId>
+            <version>${flink.version}</version>
+            <exclusions>
+                <exclusion>
+                    <artifactId>commons-logging</artifactId>
+                    <groupId>commons-logging</groupId>
+                </exclusion>
+            </exclusions>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.flink</groupId>
+            <artifactId>flink-test-utils_2.11</artifactId>
+            <version>${flink.version}</version>
+            <scope>test</scope>
+        </dependency>
+        <dependency>
+            <groupId>net.agkn</groupId>
+            <artifactId>hll</artifactId>
+            <version>${hll.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>com.netopyr.wurmloch</groupId>
+            <artifactId>wurmloch-crdt</artifactId>
+            <version>${crdt.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>tec.units</groupId>
+            <artifactId>unit-ri</artifactId>
+            <version>${unit-ri.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>javax.xml.bind</groupId>
+            <artifactId>jaxb-api</artifactId>
+            <version>${jaxb-api.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>org.docx4j</groupId>
+            <artifactId>docx4j</artifactId>
+            <version>${docx4j.version}</version>
+        </dependency>
+        <!-- google api -->
+        <dependency>
+            <groupId>com.google.api-client</groupId>
+            <artifactId>google-api-client</artifactId>
+            <version>${google-api.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>com.google.oauth-client</groupId>
+            <artifactId>google-oauth-client-jetty</artifactId>
+            <version>${google-api.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>com.google.apis</groupId>
+            <artifactId>google-api-services-sheets</artifactId>
+            <version>${google-sheets.version}</version>
+        </dependency>
+        <!-- https://mvnrepository.com/artifact/com.opencsv/opencsv -->
+        <dependency>
+            <groupId>com.opencsv</groupId>
+            <artifactId>opencsv</artifactId>
+            <version>${opencsv.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>org.milyn</groupId>
+            <artifactId>milyn-smooks-all</artifactId>
+            <version>${smooks.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>org.infinispan</groupId>
+            <artifactId>infinispan-core</artifactId>
+            <version>${infinispan.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>com.fasterxml.jackson.datatype</groupId>
+            <artifactId>jackson-datatype-jsr310</artifactId>
+            <version>${jackson.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>com.fasterxml.jackson.core</groupId>
+            <artifactId>jackson-databind</artifactId>
+            <version>${jackson.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>org.springframework</groupId>
+            <artifactId>spring-web</artifactId>
+            <version>${spring.version}</version>
+        </dependency>
+
+    </dependencies>
+
+    <properties>
+        <flink.version>1.5.0</flink.version>
+        <hll.version>1.6.0</hll.version>
+        <crdt.version>0.1.0</crdt.version>
+        <unit-ri.version>1.0.3</unit-ri.version>
+        <docx4j.version>3.3.5</docx4j.version>
+        <jaxb-api.version>2.1</jaxb-api.version>
+        <google-api.version>1.23.0</google-api.version>
+        <opencsv.version>4.1</opencsv.version>
+        <smooks.version>1.7.0</smooks.version>
+        <infinispan.version>9.1.5.Final</infinispan.version>
+        <google-sheets.version>v4-rev493-1.21.0</google-sheets.version>
+        <jackson.version>2.9.8</jackson.version>
+        <spring.version>4.3.8.RELEASE</spring.version>
+    </properties>
+</project>

libraries-data/README.md

@@ -11,7 +11,6 @@
 - [Apache Ignite with Spring Data](http://www.baeldung.com/apache-ignite-spring-data)
 - [Guide to JMapper](https://www.baeldung.com/jmapper)
 - [A Guide to Apache Crunch](https://www.baeldung.com/apache-crunch)
-- [Building a Data Pipeline with Flink and Kafka](https://www.baeldung.com/kafka-flink-data-pipeline)
 - [Intro to Apache Storm](https://www.baeldung.com/apache-storm)
 - [Guide to Ebean ORM](https://www.baeldung.com/ebean-orm)
 - [Introduction to Kafka Connectors](https://www.baeldung.com/kafka-connectors-guide)

libraries/README.md

@@ -15,7 +15,6 @@
 - [Serenity BDD with Spring and JBehave](http://www.baeldung.com/serenity-spring-jbehave)
 - [Locality-Sensitive Hashing in Java Using Java-LSH](http://www.baeldung.com/locality-sensitive-hashing)
 - [Introduction to Awaitlity](http://www.baeldung.com/awaitlity-testing)
-- [Guide to the HyperLogLog Algorithm](http://www.baeldung.com/java-hyperloglog)
 - [Introduction to Neuroph](http://www.baeldung.com/neuroph)
 - [Quick Guide to RSS with Rome](http://www.baeldung.com/rome-rss)
 - [Introduction to PCollections](http://www.baeldung.com/java-pcollections)
@@ -23,8 +22,6 @@
 - [Introduction to Eclipse Collections](http://www.baeldung.com/eclipse-collections)
 - [DistinctBy in the Java Stream API](http://www.baeldung.com/java-streams-distinct-by)
 - [Introduction to NoException](http://www.baeldung.com/no-exception)
-- [Introduction to Conflict-Free Replicated Data Types](http://www.baeldung.com/java-conflict-free-replicated-data-types)
-- [Introduction to javax.measure](http://www.baeldung.com/javax-measure)
 - [Spring Yarg Integration](http://www.baeldung.com/spring-yarg)
 - [Delete a Directory Recursively in Java](http://www.baeldung.com/java-delete-directory)
 - [Guide to JDeferred](http://www.baeldung.com/jdeferred)
@@ -33,15 +30,10 @@
 - [Introduction to Retrofit](http://www.baeldung.com/retrofit)
 - [Using Pairs in Java](http://www.baeldung.com/java-pairs)
 - [Introduction to Caffeine](http://www.baeldung.com/java-caching-caffeine)
-- [Introduction To Docx4J](http://www.baeldung.com/docx4j)
 - [Introduction to StreamEx](http://www.baeldung.com/streamex)
 - [Introduction to BouncyCastle with Java](http://www.baeldung.com/java-bouncy-castle)
-- [Interact with Google Sheets from Java](http://www.baeldung.com/google-sheets-java-client)
 - [A Docker Guide for Java](http://www.baeldung.com/docker-java-api)
-- [Introduction To OpenCSV](http://www.baeldung.com/opencsv)
 - [Introduction to Akka Actors in Java](http://www.baeldung.com/akka-actors-java)
-- [Introduction to Smooks](http://www.baeldung.com/smooks)
-- [A Guide to Infinispan in Java](http://www.baeldung.com/infinispan)
 - [A Guide to Unirest](http://www.baeldung.com/unirest)
 - [Introduction to Akka Actors in Java](http://www.baeldung.com/akka-actors-java)
 - [A Guide to Byte Buddy](http://www.baeldung.com/byte-buddy)

libraries/pom.xml

@@ -36,12 +36,6 @@
             <artifactId>cglib</artifactId>
             <version>${cglib.version}</version>
         </dependency>
-        <!-- https://mvnrepository.com/artifact/com.opencsv/opencsv -->
-        <dependency>
-            <groupId>com.opencsv</groupId>
-            <artifactId>opencsv</artifactId>
-            <version>${opencsv.version}</version>
-        </dependency>
         <dependency>
             <groupId>org.apache.commons</groupId>
             <artifactId>commons-lang3</artifactId>
@@ -52,11 +46,6 @@
             <artifactId>commons-net</artifactId>
             <version>${commons-net.version}</version>
         </dependency>
-        <dependency>
-            <groupId>tec.units</groupId>
-            <artifactId>unit-ri</artifactId>
-            <version>${unit-ri.version}</version>
-        </dependency>
         <dependency>
             <groupId>org.jasypt</groupId>
             <artifactId>jasypt</artifactId>
@@ -347,11 +336,6 @@
             <version>${org.hamcrest.java-hamcrest.version}</version>
             <scope>test</scope>
         </dependency>
-        <dependency>
-            <groupId>net.agkn</groupId>
-            <artifactId>hll</artifactId>
-            <version>${hll.version}</version>
-        </dependency>
         <dependency>
             <groupId>net.bytebuddy</groupId>
             <artifactId>byte-buddy</artifactId>
@@ -464,21 +448,6 @@
             <artifactId>jgrapht-core</artifactId>
             <version>${jgrapht.version}</version>
         </dependency>
-        <dependency>
-            <groupId>com.netopyr.wurmloch</groupId>
-            <artifactId>wurmloch-crdt</artifactId>
-            <version>${crdt.version}</version>
-        </dependency>
-        <dependency>
-            <groupId>org.docx4j</groupId>
-            <artifactId>docx4j</artifactId>
-            <version>${docx4j.version}</version>
-        </dependency>
-        <dependency>
-            <groupId>javax.xml.bind</groupId>
-            <artifactId>jaxb-api</artifactId>
-            <version>${jaxb-api.version}</version>
-        </dependency>
         <dependency>
             <groupId>com.github.ben-manes.caffeine</groupId>
             <artifactId>caffeine</artifactId>
@@ -509,11 +478,6 @@
             <artifactId>google-http-client-gson</artifactId>
             <version>${googleclient.version}</version>
         </dependency>
-        <dependency>
-            <groupId>org.infinispan</groupId>
-            <artifactId>infinispan-core</artifactId>
-            <version>${infinispan.version}</version>
-        </dependency>
 
         <!--Java Docker API Client -->
         <dependency>
@@ -553,11 +517,6 @@
             <artifactId>google-oauth-client-jetty</artifactId>
             <version>${google-api.version}</version>
         </dependency>
-        <dependency>
-            <groupId>com.google.apis</groupId>
-            <artifactId>google-api-services-sheets</artifactId>
-            <version>${google-sheets.version}</version>
-        </dependency>
         <dependency>
             <groupId>org.apache.kafka</groupId>
             <artifactId>kafka-streams</artifactId>
@@ -581,12 +540,6 @@
             <classifier>test</classifier>
             <scope>test</scope>
         </dependency>
-
-        <dependency>
-            <groupId>org.milyn</groupId>
-            <artifactId>milyn-smooks-all</artifactId>
-            <version>${smooks.version}</version>
-        </dependency>
         <dependency>
             <groupId>com.mashape.unirest</groupId>
             <artifactId>unirest-java</artifactId>
@@ -815,7 +768,6 @@
         <suanshu.version>4.0.0</suanshu.version>
         <snakeyaml.version>1.21</snakeyaml.version>
         <googleclient.version>1.23.0</googleclient.version>
-        <crdt.version>0.1.0</crdt.version>
         <multiverse.version>0.7.0</multiverse.version>
         <cglib.version>3.2.7</cglib.version>
         <jasypt.version>1.9.2</jasypt.version>
@@ -839,7 +791,6 @@
         <pact.version>3.5.0</pact.version>
         <awaitility.version>3.0.0</awaitility.version>
         <org.hamcrest.java-hamcrest.version>2.0.0.0</org.hamcrest.java-hamcrest.version>
-        <hll.version>1.6.0</hll.version>
         <bytebuddy.version>1.7.1</bytebuddy.version>
         <pcollections.version>2.1.2</pcollections.version>
         <rome.version>1.0</rome.version>
@@ -852,17 +803,13 @@
         <joda-time.version>2.10</joda-time.version>
         <hirondelle-date4j.version>1.5.1</hirondelle-date4j.version>
         <protonpack.version>1.15</protonpack.version>
-        <unit-ri.version>1.0.3</unit-ri.version>
         <cache.version>1.0.0</cache.version>
         <hazelcast.version>3.10.2</hazelcast.version>
         <caffeine.version>2.5.5</caffeine.version>
         <google-api.version>1.23.0</google-api.version>
         <google-sheets.version>v4-rev493-1.21.0</google-sheets.version>
         <kafka.version>2.0.0</kafka.version>
-        <smooks.version>1.7.0</smooks.version>
         <docker.version>3.0.14</docker.version>
-        <infinispan.version>9.1.5.Final</infinispan.version>
-        <opencsv.version>4.1</opencsv.version>
         <unirest.version>1.4.9</unirest.version>
         <jctools.version>2.1.2</jctools.version>
         <commons-codec-version>1.10.L001</commons-codec-version>
@@ -893,8 +840,6 @@
         <jdeferred.version>1.2.6</jdeferred.version>
         <functionaljava.version>4.8.1</functionaljava.version>
         <jgrapht.version>1.0.1</jgrapht.version>
-        <docx4j.version>3.3.5</docx4j.version>
-        <jaxb-api.version>2.1</jaxb-api.version>
         <bouncycastle.version>1.58</bouncycastle.version>
         <jersey.version>1.19.4</jersey.version>
         <javalin.version>1.6.0</javalin.version>

mapstruct/src/main/java/com/baeldung/dto/CarDTO.java

@@ -8,4 +8,5 @@ import lombok.Setter;
 public class CarDTO {
     private int id;
     private String name;
+    private FuelType fuelType;
 }

mapstruct/src/main/java/com/baeldung/dto/FuelType.java

@@ -0,0 +1,5 @@
+package com.baeldung.dto;
+
+public enum FuelType {
+    ELECTRIC, BIO_DIESEL
+}

mapstruct/src/main/java/com/baeldung/entity/BioDieselCar.java

@@ -0,0 +1,4 @@
+package com.baeldung.entity;
+
+public class BioDieselCar extends Car {
+}

mapstruct/src/main/java/com/baeldung/entity/ElectricCar.java

@@ -0,0 +1,4 @@
+package com.baeldung.entity;
+
+public class ElectricCar extends Car {
+}

mapstruct/src/main/java/com/baeldung/mapper/CarsMapper.java

@@ -0,0 +1,32 @@
+package com.baeldung.mapper;
+
+import org.mapstruct.AfterMapping;
+import org.mapstruct.BeforeMapping;
+import org.mapstruct.Mapper;
+import org.mapstruct.MappingTarget;
+
+import com.baeldung.dto.CarDTO;
+import com.baeldung.dto.FuelType;
+import com.baeldung.entity.BioDieselCar;
+import com.baeldung.entity.Car;
+import com.baeldung.entity.ElectricCar;
+
+@Mapper
+public abstract class CarsMapper {
+
+    @BeforeMapping
+    protected void enrichDTOWithFuelType(Car car, @MappingTarget CarDTO carDto) {
+        if (car instanceof ElectricCar)
+            carDto.setFuelType(FuelType.ELECTRIC);
+        if (car instanceof BioDieselCar)
+            carDto.setFuelType(FuelType.BIO_DIESEL);
+    }
+
+    @AfterMapping
+    protected void convertNameToUpperCase(@MappingTarget CarDTO carDto) {
+        carDto.setName(carDto.getName().toUpperCase());
+    }
+
+    public abstract CarDTO toCarDto(Car car);
+
+}

mapstruct/src/test/java/com/baeldung/mapper/CarsMapperUnitTest.java

@@ -0,0 +1,42 @@
+package com.baeldung.mapper;
+
+import static org.junit.Assert.assertEquals;
+
+import org.junit.jupiter.api.Test;
+import org.mapstruct.factory.Mappers;
+
+import com.baeldung.dto.CarDTO;
+import com.baeldung.dto.FuelType;
+import com.baeldung.entity.BioDieselCar;
+import com.baeldung.entity.Car;
+import com.baeldung.entity.ElectricCar;
+
+class CarsMapperUnitTest {
+
+    private CarsMapper sut = Mappers.getMapper(CarsMapper.class);
+
+    @Test
+    void testGivenSubTypeElectric_mapsModifiedFieldsToSuperTypeDto_whenBeforeAndAfterMappingMethodscarCalled() {
+        Car car = new ElectricCar();
+        car.setId(12);
+        car.setName("Tesla_Model_C");
+        
+        CarDTO carDto = sut.toCarDto(car);
+        
+        assertEquals("TESLA_MODEL_C", carDto.getName());
+        assertEquals(FuelType.ELECTRIC, carDto.getFuelType());
+    }
+    
+    @Test
+    void testGivenSubTypeBioDiesel_mapsModifiedFieldsToSuperTypeDto_whenBeforeAndAfterMappingMethodscarCalled() {
+        Car car = new BioDieselCar();
+        car.setId(11);
+        car.setName("Tesla_Model_X");
+        
+        CarDTO carDto = sut.toCarDto(car);
+        
+        assertEquals("TESLA_MODEL_X", carDto.getName());
+        assertEquals(FuelType.BIO_DIESEL, carDto.getFuelType());
+    }
+
+}

parent-java/pom.xml

@@ -21,10 +21,16 @@
             <artifactId>guava</artifactId>
             <version>${guava.version}</version>
         </dependency>
+        <dependency> 
+            <groupId>commons-io</groupId>
+            <artifactId>commons-io</artifactId>
+            <version>${commons.io.version}</version>
+        </dependency>
     </dependencies>
 
     <properties>
         <guava.version>23.0</guava.version>
+        <commons.io.version>2.6</commons.io.version>
     </properties>
 
 </project>

parent-spring-4/pom.xml

@@ -51,7 +51,7 @@
     </build>
 
     <properties>
-        <spring.version>4.3.22.RELEASE</spring.version>
+        <spring.version>4.3.25.RELEASE</spring.version>
         <cargo-maven2-plugin.version>1.6.1</cargo-maven2-plugin.version>
     </properties>
 

patterns/design-patterns-2/pom.xml

@@ -30,6 +30,17 @@
             <groupId>org.apache.commons</groupId>
             <artifactId>commons-lang3</artifactId>
             <version>${commons-lang3.version}</version>
+        </dependency>
+   		<dependency>
+            <groupId>org.inferred</groupId>
+            <artifactId>freebuilder</artifactId>
+            <version>${freebuilder.version}</version>
+            <optional>true</optional>
+        </dependency>
+        <dependency>
+            <groupId>com.google.code.findbugs</groupId>
+            <artifactId>jsr305</artifactId>
+            <version>${javax.annotations.version}</version>
         </dependency>
     </dependencies>
     
@@ -38,5 +49,7 @@
         <maven.compiler.source>1.8</maven.compiler.source>
         <maven.compiler.target>1.8</maven.compiler.target>
         <intellij.annotations.version>16.0.2</intellij.annotations.version>
+        <freebuilder.version>2.4.1</freebuilder.version>
+        <javax.annotations.version>3.0.2</javax.annotations.version>
     </properties>
 </project>