This happens to testng 6.9.7 and newer.
With testng 6.9.5, tests still work fine and pass.


Due to Update jtreg to newer version of TestNG ( CODETOOLS-7901639 ), there will be some tests fail with below message:
"org.testng.internal.reflect.MethodMatcherException:
Data provider mismatch "

Failed tests:
java/lang/ Package/GetPackages.jtr
java/lang/String/CompactString/IndexOf.jtr
java/time/tck/java/time/TCKPeriod.jtr
java/time/tck/java/time/format/TCKLocalizedFieldParser.jtr
java/time/tck/java/time/temporal/TCKChronoField.jtr
java/time/tck/java/time/temporal/TCKChronoUnit.jtr
java/time/test/java/time/format/TestZoneOffsetParser.jtr
java/time/tck/java/time/format/TCKDateTimeParseResolver.jtr
java/time/tck/java/time/TCKDayOfWeek.jtr
java/time/tck/java/time/TCKMonth.jtr
java/time/tck/java/time/format/TCKDateTimeFormatters.jtr
java/time/tck/java/time/temporal/TCKIsoFields.jtr
java/time/test/java/time/chrono/TestUmmAlQuraChronology.jtr
java/time/test/java/time/format/TestNumberParser.jtr
java/time/test/java/time/temporal/TestChronoUnit.jtr
java/time/tck/java/time/TCKInstant.jtr
java/time/tck/java/time/TCKZonedDateTime.jtr
java/time/tck/java/time/TCKLocalDate.jtr
java/time/tck/java/time/TCKLocalDateTime.jtr
java/time/tck/java/time/TCKLocalTime.jtr
java/time/tck/java/time/TCKOffsetTime.jtr
java/time/tck/java/time/TCKDuration.jtr
java/time/tck/java/time/TCKOffsetDateTime.jtr
java/time/tck/java/time/format/TCKInstantPrinterParser.jtr
java/time/tck/java/time/TCKYear.jtr
java/time/tck/java/time/TCKYearMonth.jtr
java/time/tck/java/time/temporal/TCKJulianFields.jtr
java/time/test/java/time/format/TestNumberPrinter.jtr
java/time/test/java/time/temporal/TestDateTimeValueRange.jtr