Skip CpsFlowDefinitionRJRTest.flushLogsOnShutdown on Windows for now

Author: dwnusbaum

plugin/pom.xml

@@ -45,7 +45,6 @@
         <node.version>18.13.0</node.version>
         <npm.version>8.19.3</npm.version>
         <yarn.version>1.22.19</yarn.version>
-        <jenkins.version>2.391</jenkins.version> <!-- TODO: Trying to diagnose errors with RealJenkinsRule in tests -->
     </properties>
     <dependencyManagement>
         <dependencies>

plugin/src/test/java/org/jenkinsci/plugins/workflow/cps/CpsFlowDefinitionRJRTest.java

@@ -1,8 +1,10 @@
 package org.jenkinsci.plugins.workflow.cps;
 
+import hudson.Functions;
 import java.util.logging.Level;
 import org.jenkinsci.plugins.workflow.job.WorkflowJob;
 import org.jenkinsci.plugins.workflow.job.WorkflowRun;
+import org.junit.Assume;
 import org.junit.Rule;
 import org.junit.Test;
 import org.jvnet.hudson.test.JenkinsRule;
@@ -26,6 +28,7 @@ private static void doesItSmoke(JenkinsRule r) throws Exception {
 
     @Test
     public void flushLogsOnShutdown() throws Throwable {
+        Assume.assumeFalse("RealJenkinsRule does not shut down Jenkins cleanly on Windows, see https://github.com/jenkinsci/jenkins-test-harness/pull/559", Functions.isWindows());
         rjr.withLogger(CpsFlowExecution.class, Level.FINER);
         rjr.then(CpsFlowDefinitionRJRTest::flushLogsOnShutdownPreRestart);
         rjr.then(CpsFlowDefinitionRJRTest::flushLogsOnShutdownPostRestart);