Which keyword of the @ SuppressWarnings annotation blocks warnings of possible null pointers?

I have a line of code that may have a null pointer when accessing a variable, so idea has a warning.
I can turn off this warning by adding comments @ SuppressWarnings ("all") to the method. But I don"t want to turn off all the other warnings. So I want to know which keywords are used specifically for null pointers?
I tried @ SuppressWarnings ("null") to no avail. At the same time, I also tried all these to have no effect 

    @SuppressWarnings(value = {
            "boxing",
            "cast",
            "dep-ann",
            "deprecation",
            "fallthrough",
            "finally",
            "hiding",
            "incomplete-switch",
            "nls",
            "null",
            "rawtypes",
            "restriction",
            "serial",
            "finally",
            "static-access",
            "synthetic-access",
            "unchecked",
            "unqualified-field-access",
            "unused",
    })
Java
Mar.13,2021

it's best to post the alarm code so that people can verify it when answering your questions.
back to your question, can't Intellij be suppressed directly in the pop-up menu through Alter+Enter?

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