This commit upgrades the checkstyle configuration from version 5.9 to
version 7.5, the latest version as of today. The main enhancement
obtained via this upgrade is better detection of redundant modifiers.
Relates #22960
With the switch to Log4j 2 throughout our code base, the logger usage checker was temporarily disabled. This commit
adapts the checks to work with Log4j 2 and re-enables the Gradle checks.
Closes#20243
This commit adds an empty test to ESLoggerUsageTests to avoid the test
suite from failing for having no tests after the existing tests were
marked as awaits fix in 1d197eddcc.
This commit modifies the call sites that allocate a parameterized
message to use a supplier so that allocations are avoided unless the log
level is fine enough to emit the corresponding log message.
It was inadvertently disabled after applying code review comments. This commit reenables the logger usage checker and makes it less naggy when encountering logging usages of the form logger.info(someStringBuilder). Previously it would fail with the error message "First argument must be a string constant so that we can statically ensure proper place holder usage". Now it will only fail in case any arguments are provided as well, for example logger.info(someStringBuilder, 42).
Jason Tedor
Yannick Welsch