Affects PMD Version:
7.2.0
Rule:
ConfusingArgumentToVarargsMethod
https://docs.pmd-code.org/latest/pmd_rules_java_errorprone.html#confusingargumenttovarargsmethod
Description:
Under certain circumstances (could not find a clear pattern yet, might be caused by the varargs parameter being a field in a different class), the ConfusingArgumentToVarargsMethod rule triggers even though it should not. This can happen for different varargs methods, when called with a single parameter of the same type, such as:MessageFormat,format(PATTERN, ARG)List.of(SomeEnum.CONSTANT)
Code Sample demonstrating the issue:
Two classes, in separate files
Messages.java:
public class Messages {
public static String PATTERN = "Hello {0}";
public static String SUBJECT = "World";
}
PmdExample.java
public class PmdExample {
public void run() {
MessageFormat.format(Messages.PATTERN, Messages.SUBJECT);
}
}
Expected outcome:
PMD reports a violation at line PmdExample.java:3, but that's wrong. That's a false positive.
Running PMD through: CLI
I was unable to reproduce this example with gradle.
In a more complex codebase, this also happens with gradle, but I could not get that working with a simple example.
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