Use try-with-resources

CuckooChessEngine/src/main/java/chess/Book.java

@@ -54,8 +54,7 @@ public class Book {
         rndGen = new SecureRandom();
         rndGen.setSeed(System.currentTimeMillis());
         numBookMoves = 0;
-        try {
-            InputStream inStream = getClass().getResourceAsStream("/book.bin");
+        try (InputStream inStream = getClass().getResourceAsStream("/book.bin")) {
             List<Byte> buf = new ArrayList<>(8192);
             byte[] tmpBuf = new byte[1024];
             while (true) {
@@ -64,7 +63,6 @@ public class Book {
                 for (int i = 0; i < len; i++)
                     buf.add(tmpBuf[i]);
             }
-            inStream.close();
             Position startPos = TextIO.readFEN(TextIO.startPosFEN);
             Position pos = new Position(startPos);
             UndoInfo ui = new UndoInfo();

CuckooChessEngine/src/main/java/chess/Evaluate.java

@@ -236,8 +236,7 @@ public class Evaluate {
 
     private byte[] readTable(String resource, int length) {
         byte[] table = new byte[2*32*64*48/8];
-        InputStream inStream = getClass().getResourceAsStream(resource);
-        try {
+        try (InputStream inStream = getClass().getResourceAsStream(resource)) {
             int off = 0;
             while (off < table.length) {
                 int len = inStream.read(table, off, table.length - off);
@@ -245,10 +244,9 @@ public class Evaluate {
                     throw new RuntimeException();
                 off += len;
             }
-            inStream.close();
             return table;
         } catch (IOException e) {
-            throw new RuntimeException();
+            throw new RuntimeException(e);
         }
     }