java.lang.AssertionError: Wrong number of structure viewers opened expected:<1> but was:<0>

at org.junit.Assert.fail(Assert.java:89)

at org.junit.Assert.failNotEquals(Assert.java:835)

at org.junit.Assert.assertEquals(Assert.java:647)

at jalview.gui.StructureChooserTest.openStructureFileForSequenceTest(StructureChooserTest.java:358)

at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)

at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)

at java.base/java.lang.reflect.Method.invoke(Method.java:566)

at org.testng.internal.invokers.MethodInvocationHelper.invokeMethod(MethodInvocationHelper.java:139)

at org.testng.internal.invokers.TestInvoker.invokeMethod(TestInvoker.java:677)

at org.testng.internal.invokers.TestInvoker.invokeTestMethod(TestInvoker.java:221)

at org.testng.internal.invokers.MethodRunner.runInSequence(MethodRunner.java:50)

at org.testng.internal.invokers.TestInvoker$MethodInvocationAgent.invoke(TestInvoker.java:969)

at org.testng.internal.invokers.TestInvoker.invokeTestMethods(TestInvoker.java:194)

at org.testng.internal.invokers.TestMethodWorker.invokeTestMethods(TestMethodWorker.java:148)

at org.testng.internal.invokers.TestMethodWorker.run(TestMethodWorker.java:128)

at java.base/java.util.ArrayList.forEach(ArrayList.java:1541)

at org.testng.TestRunner.privateRun(TestRunner.java:829)

at org.testng.TestRunner.run(TestRunner.java:602)

at org.testng.SuiteRunner.runTest(SuiteRunner.java:437)

at org.testng.SuiteRunner.runSequentially(SuiteRunner.java:431)

at org.testng.SuiteRunner.privateRun(SuiteRunner.java:391)

at org.testng.SuiteRunner.run(SuiteRunner.java:330)

at org.testng.SuiteRunnerWorker.runSuite(SuiteRunnerWorker.java:52)

at org.testng.SuiteRunnerWorker.run(SuiteRunnerWorker.java:95)

at org.testng.TestNG.runSuitesSequentially(TestNG.java:1256)

at org.testng.TestNG.runSuitesLocally(TestNG.java:1176)

at org.testng.TestNG.runSuites(TestNG.java:1099)

at org.testng.TestNG.run(TestNG.java:1067)

at org.gradle.api.internal.tasks.testing.testng.TestNGTestClassProcessor.runTests(TestNGTestClassProcessor.java:141)

at org.gradle.api.internal.tasks.testing.testng.TestNGTestClassProcessor.stop(TestNGTestClassProcessor.java:90)

at org.gradle.api.internal.tasks.testing.SuiteTestClassProcessor.stop(SuiteTestClassProcessor.java:61)

at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)

at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)

at java.base/java.lang.reflect.Method.invoke(Method.java:566)

at org.gradle.internal.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:36)

at org.gradle.internal.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:24)

at org.gradle.internal.dispatch.ContextClassLoaderDispatch.dispatch(ContextClassLoaderDispatch.java:33)

at org.gradle.internal.dispatch.ProxyDispatchAdapter$DispatchingInvocationHandler.invoke(ProxyDispatchAdapter.java:94)

at com.sun.proxy.$Proxy2.stop(Unknown Source)

at org.gradle.api.internal.tasks.testing.worker.TestWorker$3.run(TestWorker.java:193)

at org.gradle.api.internal.tasks.testing.worker.TestWorker.executeAndMaintainThreadName(TestWorker.java:129)

at org.gradle.api.internal.tasks.testing.worker.TestWorker.execute(TestWorker.java:100)

at org.gradle.api.internal.tasks.testing.worker.TestWorker.execute(TestWorker.java:60)

at org.gradle.process.internal.worker.child.ActionExecutionWorker.execute(ActionExecutionWorker.java:56)

at org.gradle.process.internal.worker.child.SystemApplicationClassLoaderWorker.call(SystemApplicationClassLoaderWorker.java:133)

at org.gradle.process.internal.worker.child.SystemApplicationClassLoaderWorker.call(SystemApplicationClassLoaderWorker.java:71)

at worker.org.gradle.process.internal.worker.GradleWorkerMain.run(GradleWorkerMain.java:69)

at worker.org.gradle.process.internal.worker.GradleWorkerMain.main(GradleWorkerMain.java:74)