SEI CERT Oracle Coding Standard for Java

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Use reference equality to determine whether two references point to the same object.

Related Guidelines

MITRE CWE

CWE-595, Comparison of object references instead of object contents
CWE-597, Use of wrong operator in string comparison

[Rogue 2000]

Rule 79, Use equals(), not ==, to test for equality of objects

Bibliography

[Bloch 2008]Item 69, "Prefer Concurrence Utilities to wait and notify"

[FindBugs 2008]

ES: , "Comparison of String Objects Using == or !="

[JLS 2011]

§3.10.5, "String Literals"
§5.6.2, "Binary Numeric Promotion"

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