fix code

hutool-core/src/main/java/cn/hutool/core/bean/copier/BeanCopier.java

@@ -109,6 +109,7 @@ public class BeanCopier<T> implements Copier<T>, Serializable {
 				}
 			}
 		}
+
 		return this.dest;
 	}
 

hutool-core/src/main/java/cn/hutool/core/collection/CollUtil.java

@@ -1,6 +1,7 @@
 package cn.hutool.core.collection;
 
 import cn.hutool.core.bean.BeanUtil;
+import cn.hutool.core.comparator.CompareUtil;
 import cn.hutool.core.comparator.PinyinComparator;
 import cn.hutool.core.comparator.PropertyComparator;
 import cn.hutool.core.convert.Convert;
@@ -992,8 +993,13 @@ public class CollUtil {
 		} else if (collectionType.isAssignableFrom(LinkedHashSet.class)) {
 			list = new LinkedHashSet<>();
 		} else if (collectionType.isAssignableFrom(TreeSet.class)) {
-			//noinspection SortedCollectionWithNonComparableKeys
-			list = new TreeSet<>();
+			list = new TreeSet<>((o1, o2) -> {
+				// 优先按照对象本身比较，如果没有实现比较接口，默认按照toString内容比较
+				if (o1 instanceof Comparable) {
+					return ((Comparable<T>) o1).compareTo(o2);
+				}
+				return CompareUtil.compare(o1.toString(), o2.toString());
+			});
 		} else if (collectionType.isAssignableFrom(EnumSet.class)) {
 			list = (Collection<T>) EnumSet.noneOf((Class<Enum>) ClassUtil.getTypeArgument(collectionType));
 		}

hutool-core/src/main/java/cn/hutool/core/convert/ConverterRegistry.java

@@ -106,9 +106,9 @@ public class ConverterRegistry implements Serializable {
 	}
 
 	/**
-	 * 获得单例的 {@link ConverterRegistry}
+	 * 获得单例的 ConverterRegistry
 	 *
-	 * @return {@link ConverterRegistry}
+	 * @return ConverterRegistry
 	 */
 	public static ConverterRegistry getInstance() {
 		return SingletonHolder.INSTANCE;
@@ -140,7 +140,7 @@ public class ConverterRegistry implements Serializable {
 	 *
 	 * @param type           转换的目标类型
 	 * @param converterClass 转换器类，必须有默认构造方法
-	 * @return {@link ConverterRegistry}
+	 * @return ConverterRegistry
 	 */
 	public ConverterRegistry putCustom(Type type, Class<? extends Converter<?>> converterClass) {
 		return putCustom(type, ReflectUtil.newInstance(converterClass));
@@ -151,7 +151,7 @@ public class ConverterRegistry implements Serializable {
 	 *
 	 * @param type      转换的目标类型
 	 * @param converter 转换器
-	 * @return {@link ConverterRegistry}
+	 * @return ConverterRegistry
 	 */
 	public ConverterRegistry putCustom(Type type, Converter<?> converter) {
 		if (null == customConverterMap) {
@@ -257,6 +257,7 @@ public class ConverterRegistry implements Serializable {
 			}
 		}
 
+
 		// 特殊类型转换，包括Collection、Map、强转、Array等
 		final T result = convertSpecial(type, rowType, value, defaultValue);
 		if (null != result) {
@@ -269,7 +270,7 @@ public class ConverterRegistry implements Serializable {
 		}
 
 		// 无法转换
-		throw new ConvertException("No Converter for type [{}]", rowType.getName());
+		throw new ConvertException("Can not Converter from [{}] to [{}]", value.getClass().getName(), type.getTypeName());
 	}
 
 	/**

hutool-core/src/main/java/cn/hutool/core/convert/impl/CollectionConverter.java

@@ -2,6 +2,7 @@ package cn.hutool.core.convert.impl;
 
 import cn.hutool.core.collection.CollUtil;
 import cn.hutool.core.convert.Converter;
+import cn.hutool.core.util.ObjectUtil;
 import cn.hutool.core.util.TypeUtil;
 
 import java.lang.reflect.Type;
@@ -60,13 +61,8 @@ public class CollectionConverter implements Converter<Collection<?>> {
 
 	@Override
 	public Collection<?> convert(Object value, Collection<?> defaultValue) throws IllegalArgumentException {
-		Collection<?> result;
-		try {
-			result = convertInternal(value);
-		} catch (RuntimeException e) {
-			return defaultValue;
-		}
-		return ((null == result) ? defaultValue : result);
+		final Collection<?> result = convertInternal(value);
+		return ObjectUtil.defaultIfNull(result, defaultValue);
 	}
 
 	/**

hutool-core/src/main/java/cn/hutool/core/convert/impl/NumberConverter.java

@@ -207,7 +207,16 @@ public class NumberConverter extends AbstractConverter<Number> {
 
 	@Override
 	protected String convertToStr(Object value) {
-		return StrUtil.trim(super.convertToStr(value));
+		String result = StrUtil.trim(super.convertToStr(value));
+		if(StrUtil.isNotEmpty(result)){
+			final char c = Character.toUpperCase(result.charAt(result.length() - 1));
+			if(c == 'D' || c == 'L' || c == 'F'){
+				// 类型标识形式（例如123.6D）
+				return StrUtil.subPre(result, -1);
+			}
+		}
+
+		return result;
 	}
 
 	@Override

hutool-core/src/main/java/cn/hutool/core/date/LocalDateTimeUtil.java

@@ -428,7 +428,7 @@ public class LocalDateTimeUtil {
 	 * @return 一天的开始时间
 	 */
 	public static LocalDateTime beginOfDay(LocalDateTime time) {
-		return time.with(LocalTime.of(0, 0, 0, 0));
+		return time.with(LocalTime.MIN);
 	}
 
 	/**
@@ -438,7 +438,7 @@ public class LocalDateTimeUtil {
 	 * @return 一天的结束时间
 	 */
 	public static LocalDateTime endOfDay(LocalDateTime time) {
-		return time.with(LocalTime.of(23, 59, 59, 999_999_999));
+		return time.with(LocalTime.MAX);
 	}
 
 	/**

hutool-core/src/test/java/cn/hutool/core/convert/ConvertToNumberTest.java

@@ -5,6 +5,7 @@ import cn.hutool.core.date.DateUtil;
 import org.junit.Assert;
 import org.junit.Test;
 
+import java.math.BigDecimal;
 import java.util.concurrent.atomic.AtomicLong;
 
 public class ConvertToNumberTest {
@@ -31,4 +32,13 @@ public class ConvertToNumberTest {
 		assert date != null;
 		Assert.assertEquals(date.getTime(), dateLong.longValue());
 	}
+
+	@Test
+	public void toBigDecimalTest(){
+		BigDecimal bigDecimal = Convert.toBigDecimal("1.1f");
+		Assert.assertEquals(1.1f, bigDecimal.floatValue(), 1);
+
+		bigDecimal = Convert.toBigDecimal("1L");
+		Assert.assertEquals(1L, bigDecimal.longValue());
+	}
 }