[java] AvoidUsingOctalValues FN with underscores

[oowekyala]

Affects PMD Version: 6.36.0

Rule: AvoidUsingOctalValues

Description: The rule should report octal literals that contain underscores

Code Sample demonstrating the issue:

class Test {
  int i = 0_711;
}

Expected outcome: a violation

PMD should report a violation at line ..., but doesn't. This is a false-negative.

Running PMD through: [CLI | Ant | Maven | Gradle | Designer | Other]

[jsotuyod]

This is fixed in PMD 7.0.0-rc1. It won't be backported to PMD 6.