sun.nio.fs.WindowsPath$WindowsPathWithAttributes error while upgrading Batch with Spring boot from 2.1.8.RELEASE to 2.6.7

[pmuralidh]

Issue upgrading Spring Boot from 2.1.8.RELEASE to 2.6.7 (exception stacktrace below).

The error happens when org.springframework.batch.item.ExecutionContext.map has a String(key) and java.nio.file.Path(value).

When the String(key) gets mapped String(value), the error goes away.

Exception:

org.springframework.batch.core.step.FatalStepExecutionException: JobRepository failure forcing rollback
	at org.springframework.batch.core.step.tasklet.TaskletStep$ChunkTransactionCallback.doInTransaction(TaskletStep.java:464) ~[spring-batch-core-4.3.5.jar:4.3.5]
	at org.springframework.batch.core.step.tasklet.TaskletStep$ChunkTransactionCallback.doInTransaction(TaskletStep.java:331) ~[spring-batch-core-4.3.5.jar:4.3.5]
	at org.springframework.transaction.support.TransactionTemplate.execute(TransactionTemplate.java:140) ~[spring-tx-5.3.19.jar:5.3.19]
	at org.springframework.batch.core.step.tasklet.TaskletStep$2.doInChunkContext(TaskletStep.java:273) ~[spring-batch-core-4.3.5.jar:4.3.5]
	at org.springframework.batch.core.scope.context.StepContextRepeatCallback.doInIteration(StepContextRepeatCallback.java:82) ~[spring-batch-core-4.3.5.jar:4.3.5]
	at org.springframework.batch.repeat.support.RepeatTemplate.getNextResult(RepeatTemplate.java:375) ~[spring-batch-infrastructure-4.3.5.jar:4.3.5]
	at org.springframework.batch.repeat.support.RepeatTemplate.executeInternal(RepeatTemplate.java:215) ~[spring-batch-infrastructure-4.3.5.jar:4.3.5]
	at org.springframework.batch.repeat.support.RepeatTemplate.iterate(RepeatTemplate.java:145) ~[spring-batch-infrastructure-4.3.5.jar:4.3.5]
	at org.springframework.batch.core.step.tasklet.TaskletStep.doExecute(TaskletStep.java:258) ~[spring-batch-core-4.3.5.jar:4.3.5]
	at org.springframework.batch.core.step.AbstractStep.execute(AbstractStep.java:208) ~[spring-batch-core-4.3.5.jar:4.3.5]
	at org.springframework.batch.core.job.SimpleStepHandler.handleStep(SimpleStepHandler.java:152) [spring-batch-core-4.3.5.jar:4.3.5]
	at org.springframework.batch.core.job.flow.JobFlowExecutor.executeStep(JobFlowExecutor.java:68) [spring-batch-core-4.3.5.jar:4.3.5]
	at org.springframework.batch.core.job.flow.support.state.StepState.handle(StepState.java:68) [spring-batch-core-4.3.5.jar:4.3.5]
	at org.springframework.batch.core.job.flow.support.SimpleFlow.resume(SimpleFlow.java:169) [spring-batch-core-4.3.5.jar:4.3.5]
	at org.springframework.batch.core.job.flow.support.SimpleFlow.start(SimpleFlow.java:144) [spring-batch-core-4.3.5.jar:4.3.5]
	at org.springframework.batch.core.job.flow.FlowJob.doExecute(FlowJob.java:137) [spring-batch-core-4.3.5.jar:4.3.5]
	at org.springframework.batch.core.job.AbstractJob.execute(AbstractJob.java:320) [spring-batch-core-4.3.5.jar:4.3.5]
	at org.springframework.batch.core.launch.support.SimpleJobLauncher$1.run(SimpleJobLauncher.java:149) [spring-batch-core-4.3.5.jar:4.3.5]
	at org.springframework.core.task.SyncTaskExecutor.execute(SyncTaskExecutor.java:50) [spring-core-5.3.19.jar:5.3.19]
	at org.springframework.batch.core.launch.support.SimpleJobLauncher.run(SimpleJobLauncher.java:140) [spring-batch-core-4.3.5.jar:4.3.5]
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_275]
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_275]
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_275]
	at java.lang.reflect.Method.invoke(Method.java:498) ~[na:1.8.0_275]
	at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:344) [spring-aop-5.3.19.jar:5.3.19]
	at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:198) [spring-aop-5.3.19.jar:5.3.19]
	at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:163) [spring-aop-5.3.19.jar:5.3.19]
	at org.springframework.batch.core.configuration.annotation.SimpleBatchConfiguration$PassthruAdvice.invoke(SimpleBatchConfiguration.java:128) [spring-batch-core-4.3.5.jar:4.3.5]
	at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186) [spring-aop-5.3.19.jar:5.3.19]
	at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:215) [spring-aop-5.3.19.jar:5.3.19]
	at com.sun.proxy.$Proxy57.run(Unknown Source) [na:na]
	at org.springframework.boot.autoconfigure.batch.JobLauncherApplicationRunner.execute(JobLauncherApplicationRunner.java:199) [spring-boot-autoconfigure-2.6.7.jar:2.6.7]
	at org.springframework.boot.autoconfigure.batch.JobLauncherApplicationRunner.executeLocalJobs(JobLauncherApplicationRunner.java:173) [spring-boot-autoconfigure-2.6.7.jar:2.6.7]
	at org.springframework.boot.autoconfigure.batch.JobLauncherApplicationRunner.launchJobFromProperties(JobLauncherApplicationRunner.java:160) [spring-boot-autoconfigure-2.6.7.jar:2.6.7]
	at org.springframework.boot.autoconfigure.batch.JobLauncherApplicationRunner.run(JobLauncherApplicationRunner.java:155) [spring-boot-autoconfigure-2.6.7.jar:2.6.7]
	at org.springframework.boot.autoconfigure.batch.JobLauncherApplicationRunner.run(JobLauncherApplicationRunner.java:150) [spring-boot-autoconfigure-2.6.7.jar:2.6.7]
	at org.springframework.boot.SpringApplication.callRunner(SpringApplication.java:768) [spring-boot-2.6.7.jar:2.6.7]
	at org.springframework.boot.SpringApplication.callRunners(SpringApplication.java:758) [spring-boot-2.6.7.jar:2.6.7]
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:310) [spring-boot-2.6.7.jar:2.6.7]
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:1312) [spring-boot-2.6.7.jar:2.6.7]
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:1301) [spring-boot-2.6.7.jar:2.6.7]
	at com.example.demo.DemoApplication.main(DemoApplication.java:10) [main/:na]
Caused by: java.lang.IllegalArgumentException: Failed to serialize object of type: class org.springframework.batch.item.ExecutionContext
	at org.springframework.util.SerializationUtils.serialize(SerializationUtils.java:60) ~[spring-core-5.3.19.jar:5.3.19]
	at org.springframework.batch.core.repository.dao.MapExecutionContextDao.copy(MapExecutionContextDao.java:117) ~[spring-batch-core-4.3.5.jar:4.3.5]
	at org.springframework.batch.core.repository.dao.MapExecutionContextDao.updateExecutionContext(MapExecutionContextDao.java:129) ~[spring-batch-core-4.3.5.jar:4.3.5]
	at org.springframework.batch.core.repository.support.SimpleJobRepository.updateExecutionContext(SimpleJobRepository.java:218) ~[spring-batch-core-4.3.5.jar:4.3.5]
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_275]
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_275]
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_275]
	at java.lang.reflect.Method.invoke(Method.java:498) ~[na:1.8.0_275]
	at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:344) [spring-aop-5.3.19.jar:5.3.19]
	at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:198) [spring-aop-5.3.19.jar:5.3.19]
	at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:163) [spring-aop-5.3.19.jar:5.3.19]
	at org.springframework.transaction.interceptor.TransactionInterceptor$1.proceedWithInvocation(TransactionInterceptor.java:123) ~[spring-tx-5.3.19.jar:5.3.19]
	at org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:388) ~[spring-tx-5.3.19.jar:5.3.19]
	at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:119) ~[spring-tx-5.3.19.jar:5.3.19]
	at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186) [spring-aop-5.3.19.jar:5.3.19]
	at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:215) [spring-aop-5.3.19.jar:5.3.19]
	at com.sun.proxy.$Proxy50.updateExecutionContext(Unknown Source) ~[na:na]
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_275]
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_275]
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_275]
	at java.lang.reflect.Method.invoke(Method.java:498) ~[na:1.8.0_275]
	at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:344) [spring-aop-5.3.19.jar:5.3.19]
	at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:198) [spring-aop-5.3.19.jar:5.3.19]
	at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:163) [spring-aop-5.3.19.jar:5.3.19]
	at org.springframework.batch.core.configuration.annotation.SimpleBatchConfiguration$PassthruAdvice.invoke(SimpleBatchConfiguration.java:128) [spring-batch-core-4.3.5.jar:4.3.5]
	at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186) [spring-aop-5.3.19.jar:5.3.19]
	at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:215) [spring-aop-5.3.19.jar:5.3.19]
	at com.sun.proxy.$Proxy50.updateExecutionContext(Unknown Source) ~[na:na]
	at org.springframework.batch.core.step.tasklet.TaskletStep$ChunkTransactionCallback.doInTransaction(TaskletStep.java:452) ~[spring-batch-core-4.3.5.jar:4.3.5]
	... 41 common frames omitted
Caused by: java.io.NotSerializableException: sun.nio.fs.WindowsPath$WindowsPathWithAttributes
	at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1184) ~[na:1.8.0_275]
	at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:348) ~[na:1.8.0_275]
	at java.util.ArrayList.writeObject(ArrayList.java:768) ~[na:1.8.0_275]
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_275]
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_275]
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_275]
	at java.lang.reflect.Method.invoke(Method.java:498) ~[na:1.8.0_275]
	at java.io.ObjectStreamClass.invokeWriteObject(ObjectStreamClass.java:1154) ~[na:1.8.0_275]
	at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1496) ~[na:1.8.0_275]
	at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1432) ~[na:1.8.0_275]
	at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1178) ~[na:1.8.0_275]
	at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:348) ~[na:1.8.0_275]
	at java.util.concurrent.ConcurrentHashMap.writeObject(ConcurrentHashMap.java:1413) ~[na:1.8.0_275]
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_275]
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_275]
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_275]
	at java.lang.reflect.Method.invoke(Method.java:498) ~[na:1.8.0_275]
	at java.io.ObjectStreamClass.invokeWriteObject(ObjectStreamClass.java:1154) ~[na:1.8.0_275]
	at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1496) ~[na:1.8.0_275]
	at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1432) ~[na:1.8.0_275]
	at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1178) ~[na:1.8.0_275]
	at java.io.ObjectOutputStream.defaultWriteFields(ObjectOutputStream.java:1548) ~[na:1.8.0_275]
	at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1509) ~[na:1.8.0_275]
	at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1432) ~[na:1.8.0_275]
	at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1178) ~[na:1.8.0_275]
	at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:348) ~[na:1.8.0_275]
	at org.springframework.util.SerializationUtils.serialize(SerializationUtils.java:56) ~[spring-core-5.3.19.jar:5.3.19]
	... 69 common frames omitted

[sbrannen]

@benas, would mind taking a look at this to determine if it's specific to Spring Batch?

[fmbenhassine]

Issue upgrading Spring Boot from 2.1.8.RELEASE to 2.6.7

This means upgrading from Spring Batch 4.1.2.RELEASE (and Spring Framework 5.1.6.RELEASE) to Spring Batch 4.3.5 (and Spring Framework 5.3.19).

The issue seems to happen already with SF 5.1.6.RELEASE, see the attached minimal complete example. So I'm not sure how this worked with Spring Boot 2.1.8.RELEASE in the first place before the migration. @PavithraBalajiOfficial Can you confirm that?

When the String(key) gets mapped String(value), the error goes away.

@PavithraBalajiOfficial Can you elaborate on this please?

@sbrannen The issue does not seem to be specific to Batch, the following snippet fails with SF 5.1.6.RELEASE:

package com.example.demo;

import java.nio.file.Paths;
import java.util.Map;
import java.util.concurrent.ConcurrentHashMap;

import org.springframework.util.SerializationUtils;

public class SF28432 {

	public static void main(String[] args) {
		java.nio.file.Path path = Paths.get("tmp", "myFile.txt");
		Map<String, Object> map = new ConcurrentHashMap<>();
		map.put("myFile", path);
		SerializationUtils.serialize(map);
	}

}

But in hindsight, this is probably a non issue. When someone wants to serialize a Map, I would expect all values to be Serializable. This does not seem to be the case with implementations of java.nio.file.Path. The same thing happens with the ExecutionContext of Batch, which is nothing more than a thin wrapper around a Map. I think we need to improve the docs on the Batch side to inform users about this detail. wdyt?

---

Minimal complete example: demo-sf28432.zip

[snicoll]

I think this issue has run its course. @fmbenhassine some note in the doc would be indeed a good idea.