[win] (random?) failing MultiProjectTests

testCycle3() and testCycle4() failed in:

https://download.eclipse.org/eclipse/downloads/drops4/I20240514-1800/testresults/html/org.eclipse.jdt.core.tests.builder_ep432I-unit-win32-java17_win32.win32.x86_64_17.html

Java Model Exception: Error in Java Model (code 977): Build path contains duplicate entry: 'C:PROGRA~1/ECLIPS~1/jdk-17.0.5.8-hotspot/lib/jrt-fs.jar' for project 'P1'
at org.eclipse.jdt.internal.core.JavaModelOperation.runOperation(JavaModelOperation.java:801)
at org.eclipse.jdt.internal.core.JavaProject.setRawClasspath(JavaProject.java:3518)
at org.eclipse.jdt.internal.core.JavaProject.setRawClasspath(JavaProject.java:3478)
at org.eclipse.jdt.internal.core.JavaProject.setRawClasspath(JavaProject.java:3534)
at org.eclipse.jdt.core.tests.builder.TestingEnvironment.setClasspath(TestingEnvironment.java:1199)
at org.eclipse.jdt.core.tests.builder.TestingEnvironment.addEntry(TestingEnvironment.java:365)
at org.eclipse.jdt.core.tests.builder.TestingEnvironment.addExternalJars(TestingEnvironment.java:336)
at org.eclipse.jdt.core.tests.builder.TestingEnvironment.addExternalJars(TestingEnvironment.java:324)
at org.eclipse.jdt.core.tests.builder.MultiProjectTests.testCycle3(MultiProjectTests.java:585)

can not reproduce locally, no related recent commits. the error meessage is from org.eclipse.jdt.internal.core.ClasspathEntry.validateClasspath(IJavaProject, IClasspathEntry[], IPath), the classpath is probably set in

Thread [main] (Suspended (breakpoint at line 2396 in JavaProject))  
    JavaProject.getRawClasspath() line: 2396    
    TestingEnvironment.getRawClasspath(IPath) line: 609 
    TestingEnvironment.addEntry(IPath, IClasspathEntry) line: 361   
    TestingEnvironment.addExternalJars(IPath, String[], boolean) line: 336  
    TestingEnvironment.addExternalJars(IPath, String[]) line: 324   
    MultiProjectTests.testCompileOnlyDependent() line: 52   
    NativeMethodAccessorImpl.invoke0(Method, Object, Object[]) line: not available [native method]  
    NativeMethodAccessorImpl.invoke(Object, Object[]) line: 77  
    DelegatingMethodAccessorImpl.invoke(Object, Object[]) line: 43  
    Method.invoke(Object, Object...) line: 568  
    MultiProjectTests(TestCase).runTest() line: 177 
    MultiProjectTests(TestCase).runTest() line: 972 
    MultiProjectTests(TestCase).runBare() line: 142 
    TestResult$1.protect() line: 122    
    TestResult.runProtected(Test, Protectable) line: 142    
    TestResult.run(TestCase) line: 125  
    MultiProjectTests(TestCase).run(TestResult) line: 130   
    OrderedTestSuite(TestSuite).runTest(Test, TestResult) line: 241 
    OrderedTestSuite(TestSuite).run(TestResult) line: 236   
    SuiteMethod(JUnit38ClassRunner).run(RunNotifier) line: 90   
    JUnit4TestReference.run(TestExecution) line: 93 
    TestExecution.run(ITestReference[]) line: 40    
    RemotePluginTestRunner(RemoteTestRunner).runTests(String[], String, TestExecution) line: 529    
    RemotePluginTestRunner(RemoteTestRunner).runTests(TestExecution) line: 757  
    RemotePluginTestRunner(RemoteTestRunner).run() line: 452    
    RemotePluginTestRunner.main(String[]) line: 83  
    CoreTestApplication.start(IApplicationContext) line: 28 
    EclipseAppHandle.run(Object) line: 208  
    EclipseAppLauncher.runApplication(Object) line: 143 
    EclipseAppLauncher.start(Object) line: 109  
    EclipseStarter.run(Object) line: 439    
    EclipseStarter.run(String[], Runnable) line: 271    
    NativeMethodAccessorImpl.invoke0(Method, Object, Object[]) line: not available [native method]  
    NativeMethodAccessorImpl.invoke(Object, Object[]) line: 77  
    DelegatingMethodAccessorImpl.invoke(Object, Object[]) line: 43  
    Method.invoke(Object, Object...) line: 568  
    Main.invokeFramework(String[], URL[]) line: 668 
    Main.basicRun(String[]) line: 605   
    Main.run(String[]) line: 1481   
    Main.main(String[]) line: 1454

probably random fail

eclipse-jdt / eclipse.jdt.core

[win] (random?) failing MultiProjectTests #2446