This machine: os.name=Linux, os.arch=amd64, java.version=25.0.4.1 OS.current()=LINUX, JRE.currentVersion()=JAVA_25 StackingConditionalTest bothConditionsFalse() : SKIPPED (Disabled on operating system: Linux) methodConditionDefaultReason() : SKIPPED (@EnabledIf("alwaysFalse") evaluated to false) methodConditionOwnReason() : SKIPPED (feature flag is off) onlySecondConditionFalse() : SKIPPED (System property [never.set] does not exist) withOwnReason() : SKIPPED (Disabled on operating system: Linux ==> Needs the Windows registry) ClassLevelConditionalTest (@EnabledOnOs(WINDOWS) on the class, two test methods) ClassLevelConditionalTest : CONTAINER SKIPPED (Disabled on operating system: Linux) OsConditionalTest again, with the configuration parameter junit.jupiter.conditions.deactivate=org.junit.jupiter.api.condition.* runEverywhereButSolaris() : PASSED testUnixSocketBehavior() : PASSED testWindowsRegistryAccess() : PASSED