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Differences java.util.Random differ between JRE or platforms?

The method next java.util.Randomwhen I look at the source in Eclipse is essentially:

seed = (seed * 0x5DEECE66DL + 0xBL) & ((1L << 48) - 1);
return (int)(seed >>> (48 - bits));

How can I determine if different JDKs or JVMs will implement nextdifferently or with different constants?

I have already met different constructors with no arguments for strange behavior when sowing Java Random . I want to know if this can happen with a method next. Where can I find the source for different implementations?

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Javadoc for Random.next()explicitly indicates which algorithm is used to generate the next number.

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