Persistent test failure on Windows

[Jonathan Gibbons]

The test  jdk/jshell/ToolReloadTest  is persistently failing on Windows, 
according to one of our build and test systems.
Could someone from the kulla team please investigate and fix.

The relevant part of the .jtr file is as follows:

[TestNG] Running:
   jdk/jshell/ToolReloadTest.java

test ToolReloadTest.testReloadClasspath(): success
test ToolReloadTest.testReloadCrashRestore(): failure
java.lang.AssertionError: Kind: command.
  expected [|  State engine terminated.
|  Restore definitions with: /reload restore
] but found []
	at org.testng.Assert.fail(Assert.java:94)
	at org.testng.Assert.failNotEquals(Assert.java:494)
	at org.testng.Assert.assertEquals(Assert.java:123)
	at org.testng.Assert.assertEquals(Assert.java:176)
	at ReplToolTesting.assertOutput(ReplToolTesting.java:460)
	at ReplToolTesting.assertCommand(ReplToolTesting.java:418)
	at ReplToolTesting.assertCommand(ReplToolTesting.java:397)
	at ToolReloadTest.lambda$testReloadCrashRestore$52(ToolReloadTest.java:167)
	at ReplToolTesting$PromptedCommandOutputStream.write(ReplToolTesting.java:704)
	at ReplToolTesting$PromptedCommandOutputStream.write(ReplToolTesting.java:720)
	at java.io.PrintStream.write(PrintStream.java:480)
	at sun.nio.cs.StreamEncoder.writeBytes(StreamEncoder.java:233)
	at sun.nio.cs.StreamEncoder.implFlushBuffer(StreamEncoder.java:312)
	at sun.nio.cs.StreamEncoder.implFlush(StreamEncoder.java:316)
	at sun.nio.cs.StreamEncoder.flush(StreamEncoder.java:153)
	at java.io.OutputStreamWriter.flush(OutputStreamWriter.java:252)
	at jdk.internal.jline.console.ConsoleReader.readLine(ConsoleReader.java:2336)
	at jdk.internal.jline.console.ConsoleReader.readLine(ConsoleReader.java:2277)
	at jdk.internal.jshell.tool.ConsoleIOContext.readLine(ConsoleIOContext.java:153)
	at jdk.internal.jshell.tool.JShellTool.run(JShellTool.java:472)
	at jdk.internal.jshell.tool.JShellTool.start(JShellTool.java:287)
	at jdk.internal.jshell.tool.JShellTool.start(JShellTool.java:260)
	at ReplToolTesting.testRaw(ReplToolTesting.java:240)
	at ReplToolTesting.test(ReplToolTesting.java:203)
	at ReplToolTesting.test(ReplToolTesting.java:191)
	at ReplToolTesting.test(ReplToolTesting.java:187)
	at ReplToolTesting.test(ReplToolTesting.java:183)
	at ToolReloadTest.testReloadCrashRestore(ToolReloadTest.java:162)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:520)
	at org.testng.internal.MethodInvocationHelper.invokeMethod(MethodInvocationHelper.java:84)
	at org.testng.internal.Invoker.invokeMethod(Invoker.java:714)
	at org.testng.internal.Invoker.invokeTestMethod(Invoker.java:901)
	at org.testng.internal.Invoker.invokeTestMethods(Invoker.java:1231)
	at org.testng.internal.TestMethodWorker.invokeTestMethods(TestMethodWorker.java:127)
	at org.testng.internal.TestMethodWorker.run(TestMethodWorker.java:111)
	at org.testng.TestRunner.privateRun(TestRunner.java:767)
	at org.testng.TestRunner.run(TestRunner.java:617)
	at org.testng.SuiteRunner.runTest(SuiteRunner.java:334)
	at org.testng.SuiteRunner.runSequentially(SuiteRunner.java:329)
	at org.testng.SuiteRunner.privateRun(SuiteRunner.java:291)
	at org.testng.SuiteRunner.run(SuiteRunner.java:240)
	at org.testng.SuiteRunnerWorker.runSuite(SuiteRunnerWorker.java:52)
	at org.testng.SuiteRunnerWorker.run(SuiteRunnerWorker.java:86)
	at org.testng.TestNG.runSuitesSequentially(TestNG.java:1224)
	at org.testng.TestNG.runSuitesLocally(TestNG.java:1149)
	at org.testng.TestNG.run(TestNG.java:1057)
	at com.sun.javatest.regtest.TestNGAction$TestNGRunner.main(TestNGAction.java:220)
	at sun.reflect.GeneratedMethodAccessor17.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:520)
	at com.sun.javatest.regtest.agent.MainActionHelper$SameVMRunnable.run(MainActionHelper.java:226)
	at java.lang.Thread.run(Thread.java:804)
test ToolReloadTest.testReloadDrop(): success
test ToolReloadTest.testReloadExitRestore(): success
test ToolReloadTest.testReloadIgnore(): success
test ToolReloadTest.testReloadRepeat(): success
test ToolReloadTest.testReloadResetRestore(): success
test ToolReloadTest.testReloadSnippets(): success

===============================================
jdk/jshell/ToolReloadTest.java
Total tests run: 8, Failures: 1, Skips: 0
===============================================

----------System.err:(11/574)----------
java.lang.Exception: failures: 1
	at com.sun.javatest.regtest.TestNGAction$TestNGRunner.main(TestNGAction.java:223)
	at sun.reflect.GeneratedMethodAccessor17.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:520)
	at com.sun.javatest.regtest.agent.MainActionHelper$SameVMRunnable.run(MainActionHelper.java:226)
	at java.lang.Thread.run(Thread.java:804)