java.lang.IllegalStateException: Failed to load ApplicationContext for [AotMergedContextConfiguration@49e45b5f testClass = com.example.jdbc.h2.JdbcTests, contextInitializerClass = com.example.jdbc.h2.JdbcTests__TestContext001_ApplicationContextInitializer, original = [MergedContextConfiguration@78fe175c testClass = com.example.jdbc.h2.JdbcTests, locations = [], classes = [com.example.jdbc.h2.JdbcH2Application], contextInitializerClasses = [], activeProfiles = [], propertySourceLocations = [], propertySourceProperties = ["org.springframework.boot.test.autoconfigure.jdbc.JdbcTestContextBootstrapper=true"], contextCustomizers = [org.springframework.boot.test.autoconfigure.actuate.observability.ObservabilityContextCustomizerFactory$DisableObservabilityContextCustomizer@9da1, org.springframework.boot.test.autoconfigure.properties.PropertyMappingContextCustomizer@677aae99, org.springframework.boot.test.autoconfigure.web.servlet.WebDriverContextCustomizerFactory$Customizer@6b4d6e48, org.springframework.boot.test.context.filter.ExcludeFilterContextCustomizer@57128473, org.springframework.boot.test.json.DuplicateJsonObjectContextCustomizerFactory$DuplicateJsonObjectContextCustomizer@832081a, org.springframework.boot.test.mock.mockito.MockitoContextCustomizer@0, org.springframework.boot.test.context.SpringBootTestAnnotation@9ea6ae4e], contextLoader = org.springframework.boot.test.context.SpringBootContextLoader, parent = null]]   
    at org.springframework.test.context.cache.DefaultCacheAwareContextLoaderDelegate.loadContext(DefaultCacheAwareContextLoaderDelegate.java:141) ~[jdbc-h2-tests:6.0.0-RC4]    
    at org.springframework.test.context.support.DefaultTestContext.getApplicationContext(DefaultTestContext.java:127) ~[na:na]  
    at org.springframework.test.context.support.DependencyInjectionTestExecutionListener.injectDependenciesInAotMode(DependencyInjectionTestExecutionListener.java:148) ~[jdbc-h2-tests:6.0.0-RC4]  
    at org.springframework.test.context.support.DependencyInjectionTestExecutionListener.prepareTestInstance(DependencyInjectionTestExecutionListener.java:94) ~[jdbc-h2-tests:6.0.0-RC4]   
    at org.springframework.test.context.TestContextManager.prepareTestInstance(TestContextManager.java:249) ~[jdbc-h2-tests:6.0.0-RC4]  
    at org.springframework.test.context.junit.jupiter.SpringExtension.postProcessTestInstance(SpringExtension.java:138) ~[jdbc-h2-tests:6.0.0-RC4]  
    at org.junit.jupiter.engine.descriptor.ClassBasedTestDescriptor.lambda$invokeTestInstancePostProcessors$10(ClassBasedTestDescriptor.java:377) ~[jdbc-h2-tests:5.9.1]    
    at org.junit.jupiter.engine.descriptor.ClassBasedTestDescriptor.executeAndMaskThrowable(ClassBasedTestDescriptor.java:382) ~[jdbc-h2-tests:5.9.1]   
    at org.junit.jupiter.engine.descriptor.ClassBasedTestDescriptor.lambda$invokeTestInstancePostProcessors$11(ClassBasedTestDescriptor.java:377) ~[jdbc-h2-tests:5.9.1]    
    at java.base@17.0.5/java.util.stream.ReferencePipeline$3$1.accept(ReferencePipeline.java:197) ~[na:na]  
    at java.base@17.0.5/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:179) ~[na:na]  
    at java.base@17.0.5/java.util.ArrayList$ArrayListSpliterator.forEachRemaining(ArrayList.java:1625) ~[na:na] 
    at java.base@17.0.5/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:509) ~[jdbc-h2-tests:na]   
    at java.base@17.0.5/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:499) ~[jdbc-h2-tests:na]    
    at java.base@17.0.5/java.util.stream.StreamSpliterators$WrappingSpliterator.forEachRemaining(StreamSpliterators.java:310) ~[na:na]  
    at java.base@17.0.5/java.util.stream.Streams$ConcatSpliterator.forEachRemaining(Streams.java:735) ~[jdbc-h2-tests:na]   
    at java.base@17.0.5/java.util.stream.Streams$ConcatSpliterator.forEachRemaining(Streams.java:734) ~[jdbc-h2-tests:na]   
    at java.base@17.0.5/java.util.stream.ReferencePipeline$Head.forEach(ReferencePipeline.java:762) ~[na:na]    
    at org.junit.jupiter.engine.descriptor.ClassBasedTestDescriptor.invokeTestInstancePostProcessors(ClassBasedTestDescriptor.java:376) ~[jdbc-h2-tests:5.9.1]  
    at org.junit.jupiter.engine.descriptor.ClassBasedTestDescriptor.lambda$instantiateAndPostProcessTestInstance$6(ClassBasedTestDescriptor.java:289) ~[jdbc-h2-tests:5.9.1]    
    at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73) ~[jdbc-h2-tests:1.9.1] 
    at org.junit.jupiter.engine.descriptor.ClassBasedTestDescriptor.instantiateAndPostProcessTestInstance(ClassBasedTestDescriptor.java:288) ~[jdbc-h2-tests:5.9.1] 
    at org.junit.jupiter.engine.descriptor.ClassBasedTestDescriptor.lambda$testInstancesProvider$4(ClassBasedTestDescriptor.java:278) ~[jdbc-h2-tests:5.9.1]    
    at java.base@17.0.5/java.util.Optional.orElseGet(Optional.java:364) ~[jdbc-h2-tests:na] 
    at org.junit.jupiter.engine.descriptor.ClassBasedTestDescriptor.lambda$testInstancesProvider$5(ClassBasedTestDescriptor.java:277) ~[jdbc-h2-tests:5.9.1]    
    at org.junit.jupiter.engine.execution.TestInstancesProvider.getTestInstances(TestInstancesProvider.java:31) ~[jdbc-h2-tests:5.9.1]  
    at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.lambda$prepare$0(TestMethodTestDescriptor.java:105) ~[jdbc-h2-tests:5.9.1]  
    at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73) ~[jdbc-h2-tests:1.9.1] 
    at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.prepare(TestMethodTestDescriptor.java:104) ~[jdbc-h2-tests:5.9.1]   
    at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.prepare(TestMethodTestDescriptor.java:68) ~[jdbc-h2-tests:5.9.1]    
    at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$prepare$2(NodeTestTask.java:123) ~[na:na] 
    at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73) ~[jdbc-h2-tests:1.9.1] 
    at org.junit.platform.engine.support.hierarchical.NodeTestTask.prepare(NodeTestTask.java:123) ~[na:na]  
    at org.junit.platform.engine.support.hierarchical.NodeTestTask.execute(NodeTestTask.java:90) ~[na:na]   
    at java.base@17.0.5/java.util.ArrayList.forEach(ArrayList.java:1511) ~[jdbc-h2-tests:na]    
    at org.junit.platform.engine.support.hierarchical.SameThreadHierarchicalTestExecutorService.invokeAll(SameThreadHierarchicalTestExecutorService.java:41) ~[na:na]   
    at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$6(NodeTestTask.java:155) ~[na:na]  
    at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73) ~[jdbc-h2-tests:1.9.1] 
    at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$8(NodeTestTask.java:141) ~[na:na]  
    at org.junit.platform.engine.support.hierarchical.Node.around(Node.java:137) ~[jdbc-h2-tests:1.9.1] 
    at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$9(NodeTestTask.java:139) ~[na:na]  
    at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73) ~[jdbc-h2-tests:1.9.1] 
    at org.junit.platform.engine.support.hierarchical.NodeTestTask.executeRecursively(NodeTestTask.java:138) ~[na:na]   
    at org.junit.platform.engine.support.hierarchical.NodeTestTask.execute(NodeTestTask.java:95) ~[na:na]   
    at java.base@17.0.5/java.util.ArrayList.forEach(ArrayList.java:1511) ~[jdbc-h2-tests:na]    
    at org.junit.platform.engine.support.hierarchical.SameThreadHierarchicalTestExecutorService.invokeAll(SameThreadHierarchicalTestExecutorService.java:41) ~[na:na]   
    at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$6(NodeTestTask.java:155) ~[na:na]  
    at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73) ~[jdbc-h2-tests:1.9.1] 
    at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$8(NodeTestTask.java:141) ~[na:na]  
    at org.junit.platform.engine.support.hierarchical.Node.around(Node.java:137) ~[jdbc-h2-tests:1.9.1] 
    at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$9(NodeTestTask.java:139) ~[na:na]  
    at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73) ~[jdbc-h2-tests:1.9.1] 
    at org.junit.platform.engine.support.hierarchical.NodeTestTask.executeRecursively(NodeTestTask.java:138) ~[na:na]   
    at org.junit.platform.engine.support.hierarchical.NodeTestTask.execute(NodeTestTask.java:95) ~[na:na]   
    at org.junit.platform.engine.support.hierarchical.SameThreadHierarchicalTestExecutorService.submit(SameThreadHierarchicalTestExecutorService.java:35) ~[na:na]  
    at org.junit.platform.engine.support.hierarchical.HierarchicalTestExecutor.execute(HierarchicalTestExecutor.java:57) ~[na:na]   
    at org.junit.platform.engine.support.hierarchical.HierarchicalTestEngine.execute(HierarchicalTestEngine.java:54) ~[jdbc-h2-tests:1.9.1] 
    at org.junit.platform.launcher.core.EngineExecutionOrchestrator.execute(EngineExecutionOrchestrator.java:147) ~[na:na]  
    at org.junit.platform.launcher.core.EngineExecutionOrchestrator.execute(EngineExecutionOrchestrator.java:127) ~[na:na]  
    at org.junit.platform.launcher.core.EngineExecutionOrchestrator.execute(EngineExecutionOrchestrator.java:90) ~[na:na]   
    at org.junit.platform.launcher.core.EngineExecutionOrchestrator.lambda$execute$0(EngineExecutionOrchestrator.java:55) ~[na:na]  
    at org.junit.platform.launcher.core.EngineExecutionOrchestrator.withInterceptedStreams(EngineExecutionOrchestrator.java:102) ~[na:na]   
    at org.junit.platform.launcher.core.EngineExecutionOrchestrator.execute(EngineExecutionOrchestrator.java:54) ~[na:na]   
    at org.junit.platform.launcher.core.DefaultLauncher.execute(DefaultLauncher.java:114) ~[na:na]  
    at org.junit.platform.launcher.core.DefaultLauncher.execute(DefaultLauncher.java:95) ~[na:na]   
    at org.junit.platform.launcher.core.DefaultLauncherSession$DelegatingLauncher.execute(DefaultLauncherSession.java:91) ~[na:na]  
    at org.junit.platform.launcher.core.SessionPerRequestLauncher.execute(SessionPerRequestLauncher.java:60) ~[na:na]   
    at org.graalvm.junit.platform.NativeImageJUnitLauncher.execute(NativeImageJUnitLauncher.java:74) ~[na:na]   
    at org.graalvm.junit.platform.NativeImageJUnitLauncher.main(NativeImageJUnitLauncher.java:129) ~[na:na] 
Caused by: org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'dataSourceScriptDatabaseInitializer': Unsatisfied dependency expressed through method 'dataSourceScriptDatabaseInitializer' parameter 0: Error creating bean with name 'dataSource': Runtime reflection is not supported for org.springframework.boot.test.autoconfigure.jdbc.TestDatabaseAutoConfiguration$EmbeddedDataSourceFactoryBean() 
    at org.springframework.beans.factory.aot.BeanInstanceSupplier.resolveArgument(BeanInstanceSupplier.java:351) ~[na:na]   
    at org.springframework.beans.factory.aot.BeanInstanceSupplier.resolveArguments(BeanInstanceSupplier.java:271) ~[na:na]  
    at org.springframework.beans.factory.aot.BeanInstanceSupplier.get(BeanInstanceSupplier.java:206) ~[na:na]   
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.obtainInstanceFromSupplier(AbstractAutowireCapableBeanFactory.java:1225) ~[jdbc-h2-tests:6.0.0-RC4] 
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.obtainFromSupplier(AbstractAutowireCapableBeanFactory.java:1210) ~[jdbc-h2-tests:6.0.0-RC4] 
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1157) ~[jdbc-h2-tests:6.0.0-RC4] 
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:561) ~[jdbc-h2-tests:6.0.0-RC4]    
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:521) ~[jdbc-h2-tests:6.0.0-RC4]  
    at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:326) ~[jdbc-h2-tests:6.0.0-RC4]    
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:234) ~[jdbc-h2-tests:6.0.0-RC4]    
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:324) ~[jdbc-h2-tests:6.0.0-RC4] 
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:200) ~[jdbc-h2-tests:6.0.0-RC4]   
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:313) ~[jdbc-h2-tests:6.0.0-RC4] 
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:200) ~[jdbc-h2-tests:6.0.0-RC4]   
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:961) ~[jdbc-h2-tests:6.0.0-RC4]    
    at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:916) ~[jdbc-h2-tests:6.0.0-RC4]   
    at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:584) ~[jdbc-h2-tests:6.0.0-RC4]   
    at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:730) ~[jdbc-h2-tests:3.0.0-SNAPSHOT]   
    at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:432) ~[jdbc-h2-tests:3.0.0-SNAPSHOT]    
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:308) ~[jdbc-h2-tests:3.0.0-SNAPSHOT]   
    at org.springframework.boot.test.context.SpringBootContextLoader.lambda$loadContext$3(SpringBootContextLoader.java:134) ~[jdbc-h2-tests:na] 
    at org.springframework.util.function.ThrowingSupplier.get(ThrowingSupplier.java:59) ~[jdbc-h2-tests:6.0.0-RC4]  
    at org.springframework.util.function.ThrowingSupplier.get(ThrowingSupplier.java:47) ~[jdbc-h2-tests:6.0.0-RC4]  
    at org.springframework.boot.SpringApplication.withHook(SpringApplication.java:1386) ~[jdbc-h2-tests:3.0.0-SNAPSHOT] 
    at org.springframework.boot.test.context.SpringBootContextLoader$ContextLoaderHook.run(SpringBootContextLoader.java:526) ~[na:na]   
    at org.springframework.boot.test.context.SpringBootContextLoader.loadContext(SpringBootContextLoader.java:134) ~[jdbc-h2-tests:na]  
    at org.springframework.boot.test.context.SpringBootContextLoader.loadContextForAotRuntime(SpringBootContextLoader.java:116) ~[jdbc-h2-tests:na] 
    at org.springframework.test.context.cache.DefaultCacheAwareContextLoaderDelegate.loadContextInAotMode(DefaultCacheAwareContextLoaderDelegate.java:213) ~[jdbc-h2-tests:6.0.0-RC4]   
    at org.springframework.test.context.cache.DefaultCacheAwareContextLoaderDelegate.loadContext(DefaultCacheAwareContextLoaderDelegate.java:114) ~[jdbc-h2-tests:6.0.0-RC4]    
    ... 68 common frames omitted    
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'dataSource': Runtime reflection is not supported for org.springframework.boot.test.autoconfigure.jdbc.TestDatabaseAutoConfiguration$EmbeddedDataSourceFactoryBean()  
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateBean(AbstractAutowireCapableBeanFactory.java:1306) ~[jdbc-h2-tests:6.0.0-RC4]    
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1180) ~[jdbc-h2-tests:6.0.0-RC4] 
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:561) ~[jdbc-h2-tests:6.0.0-RC4]    
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:521) ~[jdbc-h2-tests:6.0.0-RC4]  
    at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:326) ~[jdbc-h2-tests:6.0.0-RC4]    
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:234) ~[jdbc-h2-tests:6.0.0-RC4]    
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:324) ~[jdbc-h2-tests:6.0.0-RC4] 
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:200) ~[jdbc-h2-tests:6.0.0-RC4]   
    at org.springframework.beans.factory.config.DependencyDescriptor.resolveCandidate(DependencyDescriptor.java:254) ~[jdbc-h2-tests:6.0.0-RC4] 
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1405) ~[jdbc-h2-tests:6.0.0-RC4]    
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1325) ~[jdbc-h2-tests:6.0.0-RC4]  
    at org.springframework.beans.factory.aot.BeanInstanceSupplier.resolveArgument(BeanInstanceSupplier.java:334) ~[na:na]   
    ... 96 common frames omitted    
Caused by: com.oracle.svm.core.jdk.UnsupportedFeatureError: Runtime reflection is not supported for org.springframework.boot.test.autoconfigure.jdbc.TestDatabaseAutoConfiguration$EmbeddedDataSourceFactoryBean()  
    at org.graalvm.nativeimage.builder/com.oracle.svm.core.util.VMError.unsupportedFeature(VMError.java:89) ~[na:na]    
    at java.base@17.0.5/java.lang.reflect.Constructor.acquireConstructorAccessor(Constructor.java:68) ~[jdbc-h2-tests:na]   
    at java.base@17.0.5/java.lang.reflect.Constructor.newInstanceWithCaller(Constructor.java:496) ~[jdbc-h2-tests:na]   
    at java.base@17.0.5/java.lang.reflect.Constructor.newInstance(Constructor.java:480) ~[jdbc-h2-tests:na] 
    at org.springframework.beans.BeanUtils.instantiateClass(BeanUtils.java:197) ~[na:na]    
    at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:87) ~[jdbc-h2-tests:6.0.0-RC4]    
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateBean(AbstractAutowireCapableBeanFactory.java:1300) ~[jdbc-h2-tests:6.0.0-RC4]    
    ... 107 common frames omitted

EmbeddedDataSourceBeanFactoryPostProcessor, a BeanDefinitionRegistryPostProcessor, registers a bean definition for EmbeddedDataSourceFactoryBean and the factory bean can't be created reflectively.

I'm not yet sure if AOT processing is some how not seeing the definition for EmbeddedDataSourceFactoryBean or if EmbeddedDataSourceBeanFactoryPostProcessor is running in the native image and registering the definition again. The latter would be a similar problem to the one that we had with TestRestTemplate.