fix sonar issue

Author: XDean

src/main/java/xdean/css/editor/feature/LastFileFeature.java

@@ -4,6 +4,7 @@
 import static xdean.jex.util.lang.ExceptionUtil.uncheck;
 
 import java.io.IOException;
+import java.nio.file.DirectoryStream;
 import java.nio.file.Files;
 import java.nio.file.Path;
 import java.nio.file.Paths;
@@ -45,24 +46,26 @@ public void bind(Stage stage) {
   public void open() {
     try {
       FileUtil.createDirectory(LAST_FILE_PATH);
-      Files.newDirectoryStream(LAST_FILE_PATH, "*.tmp").forEach(p -> uncheck(() -> {
-        List<String> lines = Files.readAllLines(p, options.charset().getValue());
-        if (lines.isEmpty()) {
-          return;
-        }
-        String head = lines.get(0);
-        CssEditor editor = editorFactory.get();
-        editor.fileProperty().set(Try.to(() -> Integer.valueOf(head)).map(i -> FileWrapper.newFile(i))
-            .getOrElse(() -> FileWrapper.existFile(Paths.get(head))));
-        lines.stream()
-            .skip(1)
-            .reduce((a, b) -> String.join(System.lineSeparator(), a, b))
-            .ifPresent(t -> {
-              editor.replaceText(t);
-              editor.getUndoManager().forgetHistory();
-            });
-        contextService.editorList().add(editor);
-      }));
+      try (DirectoryStream<Path> stream = Files.newDirectoryStream(LAST_FILE_PATH, "*.tmp")) {
+        stream.forEach(p -> uncheck(() -> {
+          List<String> lines = Files.readAllLines(p, options.charset().getValue());
+          if (lines.isEmpty()) {
+            return;
+          }
+          String head = lines.get(0);
+          CssEditor editor = editorFactory.get();
+          editor.fileProperty().set(Try.to(() -> Integer.valueOf(head)).map(i -> FileWrapper.newFile(i))
+              .getOrElse(() -> FileWrapper.existFile(Paths.get(head))));
+          lines.stream()
+              .skip(1)
+              .reduce((a, b) -> String.join(System.lineSeparator(), a, b))
+              .ifPresent(t -> {
+                editor.replaceText(t);
+                editor.getUndoManager().forgetHistory();
+              });
+          contextService.editorList().add(editor);
+        }));
+      }
     } catch (IOException e) {
       dialogService.errorDialog(e).content("Fail to open last files.").show();
     }

src/main/java/xdean/css/editor/service/SkinService.java

@@ -1,5 +1,6 @@
 package xdean.css.editor.service;
 
+import java.nio.file.DirectoryStream;
 import java.nio.file.Files;
 import java.nio.file.Path;
 
@@ -49,25 +50,27 @@ public void init() throws Exception {
       if (Files.notExists(skinFolder)) {
         Files.createDirectory(skinFolder);
       } else {
-        Files.newDirectoryStream(skinFolder).forEach(path -> {
-          String fileName = path.getFileName().toString();
-          if (!Files.isDirectory(path) && (fileName.endsWith(".css") || fileName.endsWith(".bss"))) {
-            String url = path.toUri().toString();
-            String name = StringUtil.upperFirst(fileName.substring(0, fileName.length() - 4));
-            sub.load("Loading " + name);
-            addSkin(new SkinStyle() {
-              @Override
-              public String getURL() {
-                return url;
-              }
+        try (DirectoryStream<Path> stream = Files.newDirectoryStream(skinFolder)) {
+          stream.forEach(path -> {
+            String fileName = path.getFileName().toString();
+            if (!Files.isDirectory(path) && (fileName.endsWith(".css") || fileName.endsWith(".bss"))) {
+              String url = path.toUri().toString();
+              String name = StringUtil.upperFirst(fileName.substring(0, fileName.length() - 4));
+              sub.load("Loading " + name);
+              addSkin(new SkinStyle() {
+                @Override
+                public String getURL() {
+                  return url;
+                }
 
-              @Override
-              public String getName() {
-                return name;
-              }
-            });
-          }
-        });
+                @Override
+                public String getName() {
+                  return name;
+                }
+              });
+            }
+          });
+        }
       }
       throw new Exception();
     } catch (Exception e) {