Why does String.valueOf(null) throw a NullPointerException? Why does String.valueOf(null) throw a NullPointerException? java java

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Why does String.valueOf(null) throw a NullPointerException?

java null nullpointerexception overloading api-design

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Why does int num = Integer.getInteger("123") throw NullPointerException?

java integer nullpointerexception api-design autoboxing

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Why does the Duration class not have 'toSeconds()' method?

java java-8 api-design java-time

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java

Why Java does not allow overriding equals(Object) in an Enum?

java enums api-design

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