fix code

hutool-extra/src/main/java/cn/hutool/extra/ssh/Sftp.java

@@ -205,12 +205,7 @@ public class Sftp extends AbstractFtp {
 	 * @since 4.0.5
 	 */
 	public List<String> lsDirs(String path) {
-		return ls(path, new Filter<LsEntry>() {
-			@Override
-			public boolean accept(LsEntry t) {
-				return t.getAttrs().isDir();
-			}
-		});
+		return ls(path, t -> t.getAttrs().isDir());
 	}
 
 	/**
@@ -221,12 +216,7 @@ public class Sftp extends AbstractFtp {
 	 * @since 4.0.5
 	 */
 	public List<String> lsFiles(String path) {
-		return ls(path, new Filter<LsEntry>() {
-			@Override
-			public boolean accept(LsEntry t) {
-				return false == t.getAttrs().isDir();
-			}
-		});
+		return ls(path, t -> false == t.getAttrs().isDir());
 	}
 
 	/**
@@ -240,17 +230,14 @@ public class Sftp extends AbstractFtp {
 	public List<String> ls(String path, final Filter<LsEntry> filter) {
 		final List<String> fileNames = new ArrayList<>();
 		try {
-			channel.ls(path, new LsEntrySelector() {
-				@Override
-				public int select(LsEntry entry) {
-					String fileName = entry.getFilename();
-					if (false == StrUtil.equals(".", fileName) && false == StrUtil.equals("..", fileName)) {
-						if (null == filter || filter.accept(entry)) {
-							fileNames.add(entry.getFilename());
-						}
+			channel.ls(path, entry -> {
+				String fileName = entry.getFilename();
+				if (false == StrUtil.equals(".", fileName) && false == StrUtil.equals("..", fileName)) {
+					if (null == filter || filter.accept(entry)) {
+						fileNames.add(entry.getFilename());
 					}
-					return CONTINUE;
 				}
+				return LsEntrySelector.CONTINUE;
 			});
 		} catch (SftpException e) {
 			throw new JschRuntimeException(e);
@@ -316,7 +303,7 @@ public class Sftp extends AbstractFtp {
 			return false;
 		}
 
-		Vector<LsEntry> list = null;
+		Vector<LsEntry> list;
 		try {
 			list = channel.ls(channel.pwd());
 		} catch (SftpException e) {
@@ -418,7 +405,7 @@ public class Sftp extends AbstractFtp {
 	}
 
 	@Override
-	public void close() throws IOException {
+	public void close() {
 		JschUtil.close(this.channel);
 		JschUtil.close(this.session);
 	}

hutool-extra/src/main/java/cn/hutool/extra/template/engine/thymeleaf/ThymeleafEngine.java

@@ -68,7 +68,7 @@ public class ThymeleafEngine implements TemplateEngine {
 			config = new TemplateConfig();
 		}
 		
-		ITemplateResolver resolver = null;
+		ITemplateResolver resolver;
 		switch (config.getResourceMode()) {
 		case CLASSPATH:
 			final ClassLoaderTemplateResolver classLoaderResolver = new ClassLoaderTemplateResolver();
@@ -94,9 +94,6 @@ public class ThymeleafEngine implements TemplateEngine {
 		case STRING:
 			resolver = new StringTemplateResolver();
 			break;
-		case COMPOSITE:
-			resolver = new DefaultTemplateResolver();
-			break;
 		default:
 			resolver = new DefaultTemplateResolver();
 			break;

hutool-extra/src/main/java/cn/hutool/extra/template/engine/velocity/VelocityUtil.java

@@ -33,7 +33,7 @@ public class VelocityUtil {
 	/** 是否初始化了默认引擎 */
 	private static boolean isInited;
 	/** 全局上下文，当设定值时，对于每个模板都有效 */
-	private static Map<String, Object> globalContext = new HashMap<String, Object>();
+	private static Map<String, Object> globalContext = new HashMap<>();
 
 	/**
 	 * 设置Velocity全局上下文<br>
@@ -278,7 +278,7 @@ public class VelocityUtil {
 	public static VelocityContext parseRequest(VelocityContext context, javax.servlet.http.HttpServletRequest request) {
 		final Enumeration<String> attrs = request.getAttributeNames();
 		if (attrs != null) {
-			String attrName = null;
+			String attrName;
 			while (attrs.hasMoreElements()) {
 				attrName = attrs.nextElement();
 				context.put(attrName, request.getAttribute(attrName));
@@ -298,7 +298,7 @@ public class VelocityUtil {
 		if (null != session) {
 			final Enumeration<String> sessionAttrs = session.getAttributeNames();
 			if (sessionAttrs != null) {
-				String attrName = null;
+				String attrName;
 				while (sessionAttrs.hasMoreElements()) {
 					attrName = sessionAttrs.nextElement();
 					context.put(attrName, session.getAttribute(attrName));

hutool-extra/src/main/java/cn/hutool/extra/tokenizer/engine/ikanalyzer/IKAnalyzerResult.java

@@ -31,7 +31,7 @@ public class IKAnalyzerResult extends AbstractResult {
 
 	@Override
 	protected Word nextWord() {
-		Lexeme next = null;
+		Lexeme next;
 		try {
 			next = this.seg.next();
 		} catch (IOException e) {

hutool-extra/src/main/java/cn/hutool/extra/tokenizer/engine/jcseg/JcsegResult.java

@@ -36,7 +36,7 @@ public class JcsegResult implements Result{
 		if (this.cachedWord != null) {
 			return true;
 		}
-		IWord next = null;
+		IWord next;
 		try {
 			next = this.result.next();
 		} catch (IOException e) {

hutool-extra/src/main/java/cn/hutool/extra/tokenizer/engine/mmseg/MmsegResult.java

@@ -30,7 +30,7 @@ public class MmsegResult extends AbstractResult {
 
 	@Override
 	protected Word nextWord() {
-		com.chenlb.mmseg4j.Word next = null;
+		com.chenlb.mmseg4j.Word next;
 		try {
 			next = this.mmSeg.next();
 		} catch (IOException e) {