stream()… I chose Collections. emptySet() arbitrarily as the default value in case collection is null . This will result in the stream() method call producing an empty Stream if collection is null.
Read moreHow do you handle null in streams?
There are many options to handle null values in a stream:
Read moreHow do I check if a stream is null?
We can use lambda expression str -> str!= null inside stream filter() to filter out null values from a stream.
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