如何消除"The expression of type List needs unchecked conversion to conform "警告？

Question

警告是

类型安全：List类型的表达式需要未经检查的转换以符合Collection

我需要在某处进行类型转换吗？

public class ETLStepType {
    public static final ArrayList<String> ETLStepTypes = ( 
            new ArrayList<String> ((Arrays.asList(new String[] {"constant", 
                                                          "append", 
                                                          "insertupdate", 
                                                          "tableinput",
                                                          "filterrows",
                                                          "dblookup",
                                                          "selectvalues"}))));

}

Answer 1

在 Intellij Idea 中收到“为调用可变参数方法创建冗余数组”警告，已通过删除 'new String []{ and }' 修复，因此请尝试

        new ArrayList<String>(Arrays.asList("constant",
                "append",
                "insertupdate",
                "tableinput",
                "filterrows",
                "dblookup",
                "selectvalues"))

解决问题