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This rule appears in the C++ Secure Coding Standard as DCL01-CPP. Do not reuse variable names in subscopes.

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Bibliography

Wiki Markup
\[[JLS 2005|AA. Bibliography#JLS 05]\] 6.3.2 "Obscured Declarations", 6.3.1 "Shadowing Declarations", 14.4.3 "Shadowing of Names by Local Variables"
\[[Bloch 2008|AA. Bibliography#Bloch 08]\] Puzzle 67: All Strung Out
\[[Kabanov 2009|AA. Bibliography#Kabanov 09]\]
\[[Conventions 2009|AA. Bibliography#Conventions 09]\] 6.3 Placement
\[[FindBugs 2008|AA. Bibliography#FindBugs 08]\]:
Nm: Class names shouldn't shadow simple name of implemented interface  
Nm: Class names shouldn't shadow simple name of superclass
MF: Class defines field that masks a superclass field
MF: Method defines a variable that obscures a field

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