fix code

hutool-setting/src/main/java/cn/hutool/setting/GroupedMap.java

@@ -1,18 +1,18 @@
 package cn.hutool.setting;
 
+import cn.hutool.core.map.MapUtil;
+import cn.hutool.core.util.StrUtil;
+
 import java.util.Collection;
 import java.util.Collections;
 import java.util.LinkedHashMap;
 import java.util.Map;
-import java.util.Set;
 import java.util.Map.Entry;
+import java.util.Set;
 import java.util.concurrent.locks.ReentrantReadWriteLock;
 import java.util.concurrent.locks.ReentrantReadWriteLock.ReadLock;
 import java.util.concurrent.locks.ReentrantReadWriteLock.WriteLock;
 
-import cn.hutool.core.map.MapUtil;
-import cn.hutool.core.util.StrUtil;
-
 /**
  * 基于分组的Map<br>
  * 此对象方法线程安全
@@ -226,7 +226,6 @@ public class GroupedMap extends LinkedHashMap<String, LinkedHashMap<String, Stri
 		return this;
 	}
 
-	@SuppressWarnings("NullableProblems")
 	@Override
 	public Set<String> keySet() {
 		readLock.lock();
@@ -277,7 +276,6 @@ public class GroupedMap extends LinkedHashMap<String, LinkedHashMap<String, Stri
 		return Collections.emptyList();
 	}
 
-	@SuppressWarnings("NullableProblems")
 	@Override
 	public Set<java.util.Map.Entry<String, LinkedHashMap<String, String>>> entrySet() {
 		readLock.lock();

hutool-setting/src/main/java/cn/hutool/setting/Setting.java

@@ -1,18 +1,5 @@
 package cn.hutool.setting;
 
-import java.io.File;
-import java.net.URL;
-import java.nio.charset.Charset;
-import java.nio.file.Path;
-import java.nio.file.WatchEvent;
-import java.util.Collection;
-import java.util.LinkedHashMap;
-import java.util.List;
-import java.util.Map;
-import java.util.Properties;
-import java.util.Set;
-import java.util.function.Consumer;
-
 import cn.hutool.core.collection.CollUtil;
 import cn.hutool.core.convert.Convert;
 import cn.hutool.core.io.IoUtil;
@@ -31,6 +18,19 @@ import cn.hutool.core.util.StrUtil;
 import cn.hutool.log.StaticLog;
 import cn.hutool.setting.dialect.Props;
 
+import java.io.File;
+import java.net.URL;
+import java.nio.charset.Charset;
+import java.nio.file.Path;
+import java.nio.file.WatchEvent;
+import java.util.Collection;
+import java.util.LinkedHashMap;
+import java.util.List;
+import java.util.Map;
+import java.util.Properties;
+import java.util.Set;
+import java.util.function.Consumer;
+
 /**
  * 设置工具类。 用于支持设置（配置）文件<br>
  * BasicSetting用于替换Properties类，提供功能更加强大的配置文件，同时对Properties文件向下兼容
@@ -638,7 +638,6 @@ public class Setting extends AbsSetting implements Map<String, String> {
 	 *
 	 * @param m Map
 	 */
-	@SuppressWarnings("NullableProblems")
 	@Override
 	public void putAll(Map<? extends String, ? extends String> m) {
 		this.groupedMap.putAll(DEFAULT_GROUP, m);
@@ -657,7 +656,6 @@ public class Setting extends AbsSetting implements Map<String, String> {
 	 *
 	 * @return 默认分组（空分组）中的所有键列表
 	 */
-	@SuppressWarnings("NullableProblems")
 	@Override
 	public Set<String> keySet() {
 		return this.groupedMap.keySet(DEFAULT_GROUP);
@@ -668,7 +666,6 @@ public class Setting extends AbsSetting implements Map<String, String> {
 	 *
 	 * @return 默认分组（空分组）中的所有值列表
 	 */
-	@SuppressWarnings("NullableProblems")
 	@Override
 	public Collection<String> values() {
 		return this.groupedMap.values(DEFAULT_GROUP);
@@ -679,7 +676,6 @@ public class Setting extends AbsSetting implements Map<String, String> {
 	 *
 	 * @return 默认分组（空分组）中的所有键值对列表
 	 */
-	@SuppressWarnings("NullableProblems")
 	@Override
 	public Set<Entry<String, String>> entrySet() {
 		return this.groupedMap.entrySet(DEFAULT_GROUP);

hutool-setting/src/main/java/cn/hutool/setting/SettingUtil.java

@@ -56,7 +56,6 @@ public class SettingUtil {
 	 * @since 5.1.3
 	 */
 	public static Setting getFirstFound(String... names) {
-		Setting setting;
 		for (String name : names) {
 			try {
 				return get(name);

hutool-setting/src/main/java/cn/hutool/setting/dialect/PropsUtil.java

@@ -57,7 +57,6 @@ public class PropsUtil {
 	 * @return 当前环境下配置文件
 	 */
 	public static Props getFirstFound(String... names) {
-		Props props;
 		for (String name : names) {
 			try {
 				return get(name);

hutool-setting/src/test/java/cn/hutool/setting/test/PropsTest.java

@@ -72,7 +72,6 @@ public class PropsTest {
 	@Test
 	public void toBeanWithNullPrefixTest(){
 		Props configProp = new Props();
-		Boolean isInit = configProp.getBool("isInit");
 
 		configProp.setProperty("createTime", Objects.requireNonNull(DateUtil.parse("2020-01-01")));
 		configProp.setProperty("isInit", true);