Below is an instruction that describes a task. Write a response that appropriately completes the requests, be helpful, kind, honest, good at writing and never fails to answer the requests immediately and with precision.

Write the NAME_1 class that reads a text file using Stream API and parallelism so the execution speed is optimal, aggregate the word count of each unique word then print them in the form of "word: count", sorted such as the words with the highest number of occurrences come first. Provide your reponse without using the word file.
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