java Checker框架初始化。领域。取消初始化假阳性
这是我的错误
found : @Initialized @Nullable String
required: @Initialized @NonNull String
/Users/calebcushing/IdeaProjects/ppm/scaf/src/main/java/com/xenoterracide/scaf/Application.java:21: error: [initialization.fields.uninitialized] the constructor does not initialize fields: arg, args, dir
public final class Application implements Runnable {
^
3 errors
这些都是由picocli初始化的,所以我添加了SuppressWarnings,不确定为什么它仍在发生
@SuppressWarnings({ "NullAway.Init", "initialization.fields.uninitialize" })
@CommandLine.Parameters( index = "0", description = "first configuration directory" )
private String arg;
@SuppressWarnings({ "NullAway.Init", "initialization.fields.uninitialize" })
@CommandLine.Parameters(
index = "1..*",
description = "path to configuration directories separated by space"
)
private List<String> args;
@SuppressWarnings({ "NullAway.Init", "initialization.fields.uninitialize" })
@CommandLine.Option(
names = {"-d", "--dir"},
defaultValue = ".config/scaf",
showDefaultValue = CommandLine.Help.Visibility.ALWAYS,
description = "Directory path from the current working directory. " +
"Templates and configs are looked up relative to here"
)
private Path dir;
我试过
@SuppressWarnings({ "NullAway.Init", "initialization.fields.uninitialize"})
在类、构造函数和字段上。如何让checkerframework快乐
here is the full source code检查器框架目前未在其中启用,因为如果启用,它将无法编译
# 1 楼答案
Checker framework正在抱怨,因为在
main
方法中,您没有初始化实例字段arg
、args
和dir
。如果没有显式地注释字段,从checker框架的角度来看,该字段被认为是@NotNull
请尝试用
@Nullable
注释该字段:虽然您将
picocli
配置为提供默认值,但checker framework只知道在main
方法调用这些字段之后,这些字段没有初始化,没有这样的初始化代码,picocli
将提供您指定的默认值,但checker framework不知道,这就是为什么它抱怨它话虽如此,如果您希望抑制警告,请注意,checker framework正在指示必须抑制的警告类型,
initialization.fields.uninitialized
,而且代码中似乎有一个输入错误:请注意所需值
initialization.fields.uninitialized
与您提供的值initialization.fields.uninitialize
之间的差异