eclipse-jdt/eclipse.jdt.core
GitHub で見るRFE: issue (optional) warning when '==' is used on wrapper types
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#2,176 opened on 2024年3月18日
enhancementhelp wanted
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説明
I would like that Eclipse (similar to IDEA) would issue an optional warning when one uses the following construct:
Long x1 = 12345L;
Long x2 = 67890L;
if(x1 == x2)
System.out.println("Equal");
else
System.out.println("Not equal");
Because (as apparently we don't all know) Long is a wrapper class and using == only works for Long values between -127 and 127 due to caching (similarly for the other wrapper types).
This would at least uncover one such instance in our code base, of which I suspect to find a greater number alas.