Random failing ClasspathTests.testExternalJarRemove

```
junit.framework.ComparisonFailure: Unexpected markers.
----------- Expected ------------
Project 'P' is missing required library: '/home/jenkins/agent/workspace/AutomatedTests/ep435I-unit-linux-x86_64-java21/workarea/I20241126-0110/eclipse-testing/test-eclipse/eclipse/jdt_model_folder/test185733.jar'
------------ but was ------------
Archive for required library: '/home/jenkins/agent/workspace/AutomatedTests/ep435I-unit-linux-x86_64-java21/workarea/I20241126-0110/eclipse-testing/test-eclipse/eclipse/jdt_model_folder/test185733.jar' in project 'P' cannot be read or is not a valid ZIP file
---------------------- ----------
expected:<[Project 'P' is missing required library: '/home/jenkins/agent/workspace/AutomatedTests/ep435I-unit-linux-x86_64-java21/workarea/I20241126-0110/eclipse-testing/test-eclipse/eclipse/jdt_model_folder/test185733.jar']> but was:<[Archive for required library: '/home/jenkins/agent/workspace/AutomatedTests/ep435I-unit-linux-x86_64-java21/workarea/I20241126-0110/eclipse-testing/test-eclipse/eclipse/jdt_model_folder/test185733.jar' in project 'P' cannot be read or is not a valid ZIP file]>
at org.eclipse.jdt.core.tests.junit.extension.TestCase.assertStringEquals(TestCase.java:265)
at org.eclipse.jdt.core.tests.junit.extension.TestCase.assertEquals(TestCase.java:240)
at org.eclipse.jdt.core.tests.model.AbstractJavaModelTests.assertMarkers(AbstractJavaModelTests.java:1062)
at org.eclipse.jdt.core.tests.model.AbstractJavaModelTests.assertBuildPathMarkers(AbstractJavaModelTests.java:1030)
at org.eclipse.jdt.core.tests.model.ClasspathTests.testExternalJarRemove(ClasspathTests.java:3200)
at java.base/java.lang.reflect.Method.invoke(Method.java:580)
at junit.framework.TestCase.runTest(TestCase.java:177)
at org.eclipse.jdt.core.tests.junit.extension.TestCase.runTest(TestCase.java:970)
at junit.framework.TestCase.runBare(TestCase.java:142)
at junit.framework.TestResult$1.protect(TestResult.java:122)
at junit.framework.TestResult.runProtected(TestResult.java:142)
at junit.framework.TestResult.run(TestResult.java:125)
at junit.framework.TestCase.run(TestCase.java:130)
at junit.framework.TestSuite.runTest(TestSuite.java:241)
at org.eclipse.jdt.core.tests.model.SuiteOfTestCases$Suite.runTest(SuiteOfTestCases.java:114)
at junit.framework.TestSuite.run(TestSuite.java:236)
at org.eclipse.jdt.core.tests.model.SuiteOfTestCases$Suite.superRun(SuiteOfTestCases.java:97)
at org.eclipse.jdt.core.tests.model.SuiteOfTestCases$Suite$1.protect(SuiteOfTestCases.java:85)
at junit.framework.TestResult.runProtected(TestResult.java:142)
at org.eclipse.jdt.core.tests.model.SuiteOfTestCases$Suite.run(SuiteOfTestCases.java:94)
at junit.framework.TestSuite.runTest(TestSuite.java:241)
at junit.framework.TestSuite.run(TestSuite.java:236)
```
https://download.eclipse.org/eclipse/downloads/drops4/I20241126-0110/testresults/html/org.eclipse.jdt.core.tests.model_ep435I-unit-linux-x86_64-java21_linux.gtk.x86_64_21.html