Affects PMD Version:
6.47.0+
7.0.0
Rule:StringBufferInstantiationWithChar
Please provide the rule name and a link to the rule documentation:
https://pmd.github.io/latest/pmd_rules_java_errorprone.html#stringbufferinstantiationwithchar
Description:
Hi, I found a false negative about the rule StringBufferInstantiationWithChar, please read the following minimized code example. In line 3, builder is initialized by a character, but ch could converted into an integer. Hence, I think this is a false negative, and maybe we should analyze variable type about this rule.
Code Sample demonstrating the issue:
public void foo() {
char ch = 'c';
StringBuilder builder = new StringBuilder(ch); // should report a warning in this line
}
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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