15 lines
470 B
Plaintext
15 lines
470 B
Plaintext
import org.checkerframework.checker.nullness.qual.EnsuresNonNullIf;
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import org.checkerframework.checker.nullness.qual.NonNull;
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import org.checkerframework.checker.nullness.qual.Nullable;
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package com.google.common.base;
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class Strings {
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@EnsuresNonNullIf(result = false, expression = "#1")
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static boolean isNullOrEmpty(@Nullable String str);
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}
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class Preconditions {
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static <T extends @NonNull Object> T checkNotNull(T reference, @Nullable Object errorMessage);
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}
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