表结构修改

yzg-util-base/src/main/java/com/yanzuoguang/util/helper/StringHelper.java

@@ -172,6 +172,9 @@ public class StringHelper {
             }
             boolean isExpand = false;
             for (T expandValue : expandValues) {
+                if (expandValue == null) {
+                    continue;
+                }
                 if (expandValue == from || expandValue.equals(from)) {
                     isExpand = true;
                     break;

yzg-util-base/src/test/java/helper/TestGetFirst.java

@@ -37,4 +37,10 @@ public class TestGetFirst {
         Integer zeroTo = StringHelper.getFirst(zero);
         System.out.println(first.equals(zeroTo));
     }
+
+    @Test
+    public void testBoolean() {
+        Boolean first = StringHelper.getFirst(false);
+        System.out.println(first);
+    }
 }