Affects PMD Version:6.42.0
Rule:InsufficientStringBufferDeclaration
Please provide the rule name and a link to the rule documentation:
https://pmd.github.io/latest/pmd_rules_java_performance.html#insufficientstringbufferdeclaration
Description:
Hi, I found a false negative in the following case. At line 3, PMD should have reported a warning because the length of StringBuffer is 2, but it is insufficient to store characters. Besides, PMD can report the warning at line 2. So, I think this is a false negative.
Code Sample demonstrating the issue:
public void bar() {
// StringBuffer sb = new StringBuffer(2); // This line can be detected
StringBuffer sb = new StringBuffer(1 + 2 - 1); // Should report a warning at this line
sb.append('a');
sb.append('a');
sb.append('a');
}
Expected outcome: A Warning
PMD should report a violation at line 3, but doesn't. This is a false-negative.
Running PMD through: [Maven]
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