From comment : #17667 (comment)
Inspection Error:
</problem> <problem> <file>file://$PROJECT_DIR$/src/main/java/com/puppycrawl/tools/checkstyle/checks/annotation/SuppressWarningsCheck.java</file> <line>223</line> <module>project</module> <package>com.puppycrawl.tools.checkstyle.checks.annotation</package> <entry_point TYPE="method" FQNAME="com.puppycrawl.tools.checkstyle.checks.annotation.SuppressWarningsCheck void visitToken(com.puppycrawl.tools.checkstyle.api.DetailAST ast)"/> <problem_class id="EnhancedSwitchMigration" severity="WARNING" attribute_key="WARNING_ATTRIBUTES">Statement can be replaced with enhanced 'switch'</problem_class> <description>Switch statement can be replaced with enhanced 'switch'</description> <highlighted_element>switch</highlighted_element> <language>JAVA</language> <offset>24</offset> <length>6</length> </problem> </problems>
On Conversion to Enhance switch cases we see the coverage going down from 1 to 0.98

[INFO] --- jacoco:0.8.14:check (default-check) @ checkstyle ---
[INFO] Loading execution data file /Users/runner/work/1/s/target/jacoco.exec
[INFO] Analyzed bundle 'checkstyle' with 819 classes
[WARNING] Rule violated for class com.puppycrawl.tools.checkstyle.checks.annotation.AnnotationUseStyleCheck: branches covered ratio is 0.98, but expected minimum is 1.00