修复一个空指针异常

src/main/java/com/tykj/workflowcore/api/service/ApiService.java

@@ -20,6 +20,7 @@ import java.util.*;
 import java.util.stream.Collectors;
 
 import static java.lang.String.format;
+import static java.util.Objects.isNull;
 import static java.util.Objects.nonNull;
 
 @Slf4j
@@ -68,7 +69,8 @@ public class ApiService {
             List<EntityInfo> params = Arrays.stream(method.getParameters())
                     .map(parameter -> entityInfo(parameter.getType(), parameter.getName(), Strings.EMPTY))
                     .collect(Collectors.toList());
-            EntityInfo ret = entityInfo(method.getReturnType(), Strings.EMPTY, Strings.EMPTY);
+            Class<?> returnType = method.getReturnType();
+            EntityInfo ret = entityInfo(returnType, Strings.EMPTY, Strings.EMPTY);
             ApiOperation methodAnnotation = method.getAnnotation(ApiOperation.class);
             String description = Strings.EMPTY;
             if (nonNull(methodAnnotation)) {
@@ -113,7 +115,7 @@ public class ApiService {
     }
 
     private Boolean isNotBasicClass(Class<?> clz) {
-        String packagePath = clz.getPackage().getName();
+        String packagePath = nonNull(clz.getPackage()) ? clz.getPackage().getName() : Strings.EMPTY;
         return !Objects.equals(packagePath, "java.lang")
                 && !Objects.equals(packagePath, "java.util");
     }