Underscore used as identifier¶
ID: java/underscore-identifier
Kind: problem
Security severity:
Severity: recommendation
Precision: high
Tags:
- maintainability
Query suites:
- java-security-and-quality.qls
Click to see the query in the CodeQL repository
The underscore character is a reserved keyword in Java 9 and therefore disallowed as a one-character identifier.
Recommendation¶
Rename any identifiers that consist of a one-character underscore.
References¶
Oracle JDK Documentation: Oracle JDK 9 Migration Guide.
JDK Bug System: Disallow _ as a one-character identifier.