The doc says > When calling Kotlin functions fr...

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[desseim]

The doc says

When calling Kotlin functions from Java, nobody prevents us from passing null as a non-null parameter. That’s why Kotlin generates runtime checks for all public functions that expect non-nulls. This way we get a NullPointerException in the Java code immediately.

which doesn’t seem to apply to the receiver parameter of extension functions.
Did I get it right and is it intentional ?