Getting java.lang.RuntimeException:
java.lang.UnsupportedOperationException in com.writer.MultiFilesItemWriter in writers.get(k).write(l); method of below code snippet after spring boot 3 migraton.
private final Map<D, ItemStreamWriter<T>> writers;
@Override
public void write(Chunk<? extends T> chunk) throws Exception {
Map<D, Chunk<T>> groups = new HashMap<>();
writers.forEach((k, w) -> groups.put(k, new Chunk<>()));
for (T i : chunk.getItems()) {
D writerKey = decider.apply(i);
if (groups.containsKey(writerKey)) {
groups.get(writerKey).add(i);
} else {
throw new ClassNotFoundException("Not writer for key " + writerKey);
}
}
groups.forEach((k, l) -> {
try {
writers.get(k).write(l); //Getting exception here
} catch (Exception exception) {
throw new RuntimeException(exception);
}
});
}
java.lang.RuntimeException: java.lang.UnsupportedOperationException
at com.batches.writer.MultiFilesItemWriter.lambda$write$4(MultiFilesItemWriter.java:83) ~[main/:na]
at java.base/java.util.HashMap.forEach(HashMap.java:1421) ~[na:na]
at com.batches.writer.MultiFilesItemWriter.write(MultiFilesItemWriter.java:79) ~[main/:na]
at org.springframework.batch.integration.async.AsyncItemWriter.write(AsyncItemWriter.java:87) ~[spring-batch-integration-5.0.2.jar:5.0.2]
at org.springframework.batch.core.step.item.SimpleChunkProcessor.writeItems(SimpleChunkProcessor.java:203) ~[spring-batch-core-5.0.2.jar:5.0.2]
at org.springframework.batch.core.step.item.SimpleChunkProcessor.doWrite(SimpleChunkProcessor.java:170) ~[spring-batch-core-5.0.2.jar:5.0.2]
at org.springframework.batch.core.step.item.SimpleChunkProcessor.write(SimpleChunkProcessor.java:297) ~[spring-batch-core-5.0.2.jar:5.0.2]
at org.springframework.batch.core.step.item.SimpleChunkProcessor.process(SimpleChunkProcessor.java:227) ~[spring-batch-core-5.0.2.jar:5.0.2]
at org.springframework.batch.core.step.item.ChunkOrientedTasklet.execute(ChunkOrientedTasklet.java:75) ~[spring-batch-core-5.0.2.jar:5.0.2]
at org.springframework.batch.core.step.tasklet.TaskletStep$ChunkTransactionCallback.doInTransaction(TaskletStep.java:389) ~[spring-batch-core-5.0.2.jar:5.0.2]
at org.springframework.batch.core.step.tasklet.TaskletStep$ChunkTransactionCallback.doInTransaction(TaskletStep.java:313) ~[spring-batch-core-5.0.2.jar:5.0.2]
at org.springframework.transaction.support.TransactionTemplate.execute(TransactionTemplate.java:140) ~[spring-tx-6.0.9.jar:6.0.9]
at org.springframework.batch.core.step.tasklet.TaskletStep$2.doInChunkContext(TaskletStep.java:256) ~[spring-batch-core-5.0.2.jar:5.0.2]
at org.springframework.batch.core.scope.context.StepContextRepeatCallback.doInIteration(StepContextRepeatCallback.java:82) ~[spring-batch-core-5.0.2.jar:5.0.2]
at org.springframework.batch.repeat.support.RepeatTemplate.getNextResult(RepeatTemplate.java:362) ~[spring-batch-infrastructure-5.0.2.jar:5.0.2]
at org.springframework.batch.repeat.support.RepeatTemplate.executeInternal(RepeatTemplate.java:206) ~[spring-batch-infrastructure-5.0.2.jar:5.0.2]
at org.springframework.batch.repeat.support.RepeatTemplate.iterate(RepeatTemplate.java:139) ~[spring-batch-infrastructure-5.0.2.jar:5.0.2]
at org.springframework.batch.core.step.tasklet.TaskletStep.doExecute(TaskletStep.java:241) ~[spring-batch-core-5.0.2.jar:5.0.2]
at org.springframework.batch.core.step.AbstractStep.execute(AbstractStep.java:227) ~[spring-batch-core-5.0.2.jar:5.0.2]
at org.springframework.batch.core.job.SimpleStepHandler.handleStep(SimpleStepHandler.java:153) ~[spring-batch-core-5.0.2.jar:5.0.2]
at org.springframework.batch.core.job.flow.JobFlowExecutor.executeStep(JobFlowExecutor.java:68) ~[spring-batch-core-5.0.2.jar:5.0.2]
at org.springframework.batch.core.job.flow.support.state.StepState.handle(StepState.java:68) ~[spring-batch-core-5.0.2.jar:5.0.2]
at org.springframework.batch.core.job.flow.support.SimpleFlow.resume(SimpleFlow.java:167) ~[spring-batch-core-5.0.2.jar:5.0.2]
at org.springframework.batch.core.job.flow.support.SimpleFlow.start(SimpleFlow.java:142) ~[spring-batch-core-5.0.2.jar:5.0.2]
at org.springframework.batch.core.job.flow.FlowJob.doExecute(FlowJob.java:137) ~[spring-batch-core-5.0.2.jar:5.0.2]
at org.springframework.batch.core.job.AbstractJob.execute(AbstractJob.java:316) ~[spring-batch-core-5.0.2.jar:5.0.2]
at org.springframework.batch.core.launch.support.SimpleJobLauncher$1.run(SimpleJobLauncher.java:157) ~[spring-batch-core-5.0.2.jar:5.0.2]
at org.springframework.core.task.SyncTaskExecutor.execute(SyncTaskExecutor.java:50) ~[spring-core-6.0.9.jar:6.0.9]
at org.springframework.batch.core.launch.support.SimpleJobLauncher.run(SimpleJobLauncher.java:148) ~[spring-batch-core-5.0.2.jar:5.0.2]
at org.springframework.batch.core.launch.support.TaskExecutorJobLauncher.run(TaskExecutorJobLauncher.java:59) ~[spring-batch-core-5.0.2.jar:5.0.2]
at com.batches.factory.SimpleBatchJobFactoryTest.lambda$runJobAndCheckOutputFiles$2(SimpleBatchJobFactoryTest.java:136) ~[test/:na]
at org.assertj.core.api.ThrowableAssert.catchThrowable(ThrowableAssert.java:63) ~[assertj-core-3.23.1.jar:na]
at org.assertj.core.api.NotThrownAssert.isThrownBy(NotThrownAssert.java:43) ~[assertj-core-3.23.1.jar:na]
at com.batches.factory.SimpleBatchJobFactoryTest.runJobAndCheckOutputFiles(SimpleBatchJobFactoryTest.java:135) ~[test/:na]
at com.batches.factory.SimpleBatchJobFactoryTest.build_job_should_succeed_when_file_name_used_as_file_pattern_input(SimpleBatchJobFactoryTest.java:67) ~[test/:na]
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:na]
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77) ~[na:na]
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:na]
at java.base/java.lang.reflect.Method.invoke(Method.java:568) ~[na:na]
at org.junit.platform.commons.util.ReflectionUtils.invokeMethod(ReflectionUtils.java:727) ~[junit-platform-commons-1.9.3.jar:1.9.3]
at org.junit.jupiter.engine.execution.MethodInvocation.proceed(MethodInvocation.java:60) ~[junit-jupiter-engine-5.9.3.jar:5.9.3]
at org.junit.jupiter.engine.execution.InvocationInterceptorChain$ValidatingInvocation.proceed(InvocationInterceptorChain.java:131) ~[junit-jupiter-engine-5.9.3.jar:5.9.3]
at org.junit.jupiter.engine.extension.TimeoutExtension.intercept(TimeoutExtension.java:156) ~[junit-jupiter-engine-5.9.3.jar:5.9.3]
at org.junit.jupiter.engine.extension.TimeoutExtension.interceptTestableMethod(TimeoutExtension.java:147) ~[junit-jupiter-engine-5.9.3.jar:5.9.3]
at org.junit.jupiter.engine.extension.TimeoutExtension.interceptTestMethod(TimeoutExtension.java:86) ~[junit-jupiter-engine-5.9.3.jar:5.9.3]
at org.junit.jupiter.engine.execution.InterceptingExecutableInvoker$ReflectiveInterceptorCall.lambda$ofVoidMethod$0(InterceptingExecutableInvoker.java:103) ~[junit-jupiter-engine-5.9.3.jar:5.9.3]
at org.junit.jupiter.engine.execution.InterceptingExecutableInvoker.lambda$invoke$0(InterceptingExecutableInvoker.java:93) ~[junit-jupiter-engine-5.9.3.jar:5.9.3]
at org.junit.jupiter.engine.execution.InvocationInterceptorChain$InterceptedInvocation.proceed(InvocationInterceptorChain.java:106) ~[junit-jupiter-engine-5.9.3.jar:5.9.3]
at org.junit.jupiter.engine.execution.InvocationInterceptorChain.proceed(InvocationInterceptorChain.java:64) ~[junit-jupiter-engine-5.9.3.jar:5.9.3]
at org.junit.jupiter.engine.execution.InvocationInterceptorChain.chainAndInvoke(InvocationInterceptorChain.java:45) ~[junit-jupiter-engine-5.9.3.jar:5.9.3]
at org.junit.jupiter.engine.execution.InvocationInterceptorChain.invoke(InvocationInterceptorChain.java:37) ~[junit-jupiter-engine-5.9.3.jar:5.9.3]
at org.junit.jupiter.engine.execution.InterceptingExecutableInvoker.invoke(InterceptingExecutableInvoker.java:92) ~[junit-jupiter-engine-5.9.3.jar:5.9.3]
at org.junit.jupiter.engine.execution.InterceptingExecutableInvoker.invoke(InterceptingExecutableInvoker.java:86) ~[junit-jupiter-engine-5.9.3.jar:5.9.3]
at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.lambda$invokeTestMethod$7(TestMethodTestDescriptor.java:217) ~[junit-jupiter-engine-5.9.3.jar:5.9.3]
at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73) ~[junit-platform-engine-1.9.3.jar:1.9.3]
at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.invokeTestMethod(TestMethodTestDescriptor.java:213) ~[junit-jupiter-engine-5.9.3.jar:5.9.3]
at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.execute(TestMethodTestDescriptor.java:138) ~[junit-jupiter-engine-5.9.3.jar:5.9.3]
at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.execute(TestMethodTestDescriptor.java:68) ~[junit-jupiter-engine-5.9.3.jar:5.9.3]
at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$6(NodeTestTask.java:151) ~[junit-platform-engine-1.9.3.jar:1.9.3]
at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73) ~[junit-platform-engine-1.9.3.jar:1.9.3]
at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$8(NodeTestTask.java:141) ~[junit-platform-engine-1.9.3.jar:1.9.3]
at org.junit.platform.engine.support.hierarchical.Node.around(Node.java:137) ~[junit-platform-engine-1.9.3.jar:1.9.3]
at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$9(NodeTestTask.java:139) ~[junit-platform-engine-1.9.3.jar:1.9.3]
at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73) ~[junit-platform-engine-1.9.3.jar:1.9.3]
at org.junit.platform.engine.support.hierarchical.NodeTestTask.executeRecursively(NodeTestTask.java:138) ~[junit-platform-engine-1.9.3.jar:1.9.3]
at org.junit.platform.engine.support.hierarchical.NodeTestTask.execute(NodeTestTask.java:95) ~[junit-platform-engine-1.9.3.jar:1.9.3]
at java.base/java.util.ArrayList.forEach(ArrayList.java:1511) ~[na:na]
at org.junit.platform.engine.support.hierarchical.SameThreadHierarchicalTestExecutorService.invokeAll(SameThreadHierarchicalTestExecutorService.java:41) ~[junit-platform-engine-1.9.3.jar:1.9.3]
at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$6(NodeTestTask.java:155) ~[junit-platform-engine-1.9.3.jar:1.9.3]
at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73) ~[junit-platform-engine-1.9.3.jar:1.9.3]
at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$8(NodeTestTask.java:141) ~[junit-platform-engine-1.9.3.jar:1.9.3]
at org.junit.platform.engine.support.hierarchical.Node.around(Node.java:137) ~[junit-platform-engine-1.9.3.jar:1.9.3]
at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$9(NodeTestTask.java:139) ~[junit-platform-engine-1.9.3.jar:1.9.3]
at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73) ~[junit-platform-engine-1.9.3.jar:1.9.3]
at org.junit.platform.engine.support.hierarchical.NodeTestTask.executeRecursively(NodeTestTask.java:138) ~[junit-platform-engine-1.9.3.jar:1.9.3]
at org.junit.platform.engine.support.hierarchical.NodeTestTask.execute(NodeTestTask.java:95) ~[junit-platform-engine-1.9.3.jar:1.9.3]
at java.base/java.util.ArrayList.forEach(ArrayList.java:1511) ~[na:na]
at org.junit.platform.engine.support.hierarchical.SameThreadHierarchicalTestExecutorService.invokeAll(SameThreadHierarchicalTestExecutorService.java:41) ~[junit-platform-engine-1.9.3.jar:1.9.3]
at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$6(NodeTestTask.java:155) ~[junit-platform-engine-1.9.3.jar:1.9.3]
at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73) ~[junit-platform-engine-1.9.3.jar:1.9.3]
at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$8(NodeTestTask.java:141) ~[junit-platform-engine-1.9.3.jar:1.9.3]
at org.junit.platform.engine.support.hierarchical.Node.around(Node.java:137) ~[junit-platform-engine-1.9.3.jar:1.9.3]
at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$9(NodeTestTask.java:139) ~[junit-platform-engine-1.9.3.jar:1.9.3]
at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73) ~[junit-platform-engine-1.9.3.jar:1.9.3]
at org.junit.platform.engine.support.hierarchical.NodeTestTask.executeRecursively(NodeTestTask.java:138) ~[junit-platform-engine-1.9.3.jar:1.9.3]
at org.junit.platform.engine.support.hierarchical.NodeTestTask.execute(NodeTestTask.java:95) ~[junit-platform-engine-1.9.3.jar:1.9.3]
at org.junit.platform.engine.support.hierarchical.SameThreadHierarchicalTestExecutorService.submit(SameThreadHierarchicalTestExecutorService.java:35) ~[junit-platform-engine-1.9.3.jar:1.9.3]
at org.junit.platform.engine.support.hierarchical.HierarchicalTestExecutor.execute(HierarchicalTestExecutor.java:57) ~[junit-platform-engine-1.9.3.jar:1.9.3]
at org.junit.platform.engine.support.hierarchical.HierarchicalTestEngine.execute(HierarchicalTestEngine.java:54) ~[junit-platform-engine-1.9.3.jar:1.9.3]
at org.junit.platform.launcher.core.EngineExecutionOrchestrator.execute(EngineExecutionOrchestrator.java:107) ~[na:na]
at org.junit.platform.launcher.core.EngineExecutionOrchestrator.execute(EngineExecutionOrchestrator.java:88) ~[na:na]
at org.junit.platform.launcher.core.EngineExecutionOrchestrator.lambda$execute$0(EngineExecutionOrchestrator.java:54) ~[na:na]
at org.junit.platform.launcher.core.EngineExecutionOrchestrator.withInterceptedStreams(EngineExecutionOrchestrator.java:67) ~[na:na]
at org.junit.platform.launcher.core.EngineExecutionOrchestrator.execute(EngineExecutionOrchestrator.java:52) ~[na:na]
at org.junit.platform.launcher.core.DefaultLauncher.execute(DefaultLauncher.java:114) ~[na:na]
at org.junit.platform.launcher.core.DefaultLauncher.execute(DefaultLauncher.java:86) ~[na:na]
at org.junit.platform.launcher.core.DefaultLauncherSession$DelegatingLauncher.execute(DefaultLauncherSession.java:86) ~[na:na]
at org.junit.platform.launcher.core.SessionPerRequestLauncher.execute(SessionPerRequestLauncher.java:53) ~[na:na]
at org.gradle.api.internal.tasks.testing.junitplatform.JUnitPlatformTestClassProcessor$CollectAllTestClassesExecutor.processAllTestClasses(JUnitPlatformTestClassProcessor.java:99) ~[na:na]
at org.gradle.api.internal.tasks.testing.junitplatform.JUnitPlatformTestClassProcessor$CollectAllTestClassesExecutor.access$000(JUnitPlatformTestClassProcessor.java:79) ~[na:na]
at org.gradle.api.internal.tasks.testing.junitplatform.JUnitPlatformTestClassProcessor.stop(JUnitPlatformTestClassProcessor.java:75) ~[na:na]
at org.gradle.api.internal.tasks.testing.SuiteTestClassProcessor.stop(SuiteTestClassProcessor.java:62) ~[na:na]
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:na]
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77) ~[na:na]
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:na]
at java.base/java.lang.reflect.Method.invoke(Method.java:568) ~[na:na]
at org.gradle.internal.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:36) ~[na:na]
at org.gradle.internal.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:24) ~[na:na]
at org.gradle.internal.dispatch.ContextClassLoaderDispatch.dispatch(ContextClassLoaderDispatch.java:33) ~[na:na]
at org.gradle.internal.dispatch.ProxyDispatchAdapter$DispatchingInvocationHandler.invoke(ProxyDispatchAdapter.java:94) ~[na:na]
at jdk.proxy2/jdk.proxy2.$Proxy5.stop(Unknown Source) ~[na:na]
at org.gradle.api.internal.tasks.testing.worker.TestWorker$3.run(TestWorker.java:193) ~[na:na]
at org.gradle.api.internal.tasks.testing.worker.TestWorker.executeAndMaintainThreadName(TestWorker.java:129) ~[na:na]
at org.gradle.api.internal.tasks.testing.worker.TestWorker.execute(TestWorker.java:100) ~[na:na]
at org.gradle.api.internal.tasks.testing.worker.TestWorker.execute(TestWorker.java:60) ~[na:na]
at org.gradle.process.internal.worker.child.ActionExecutionWorker.execute(ActionExecutionWorker.java:56) ~[na:na]
at org.gradle.process.internal.worker.child.SystemApplicationClassLoaderWorker.call(SystemApplicationClassLoaderWorker.java:113) ~[na:na]
at org.gradle.process.internal.worker.child.SystemApplicationClassLoaderWorker.call(SystemApplicationClassLoaderWorker.java:65) ~[na:na]
at worker.org.gradle.process.internal.worker.GradleWorkerMain.run(GradleWorkerMain.java:69) ~[gradle-worker.jar:na]
at worker.org.gradle.process.internal.worker.GradleWorkerMain.main(GradleWorkerMain.java:74) ~[gradle-worker.jar:na]
Caused by: java.lang.UnsupportedOperationException: null
at java.base/java.util.Collections$UnmodifiableCollection.clear(Collections.java:1086) ~[na:na]
at com.batches.writer.SplitFilesItemWriter.write(SplitFilesItemWriter.java:95) ~[main/:na]
at com.batches.writer.MultiFilesItemWriter.lambda$write$4(MultiFilesItemWriter.java:81) ~[main/:na]
... 119 common frames omitted
