[ 
https://issues.apache.org/jira/browse/HADOOP-16574?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16929221#comment-16929221
 ] 

Steve Loughran commented on HADOOP-16574:
-----------------------------------------

{code}
[INFO] Running org.apache.hadoop.fs.s3a.ITestS3AAWSCredentialsProvider
[INFO] Running org.apache.hadoop.fs.s3a.select.ITestS3SelectMRJob
[ERROR] Tests run: 4, Failures: 0, Errors: 2, Skipped: 0, Time elapsed: 13.286 
s <<< FAILURE! - in org.apache.hadoop.fs.s3a.ITestS3AAWSCredentialsProvider
[ERROR] 
testBadConfiguration(org.apache.hadoop.fs.s3a.ITestS3AAWSCredentialsProvider)  
Time elapsed: 0.089 s  <<< ERROR!
org.apache.hadoop.service.ServiceStateException: java.io.IOException: From 
option fs.s3a.aws.credentials.provider java.lang.ClassNotFoundException: Class 
no.such.class not found
        at 
org.apache.hadoop.service.ServiceStateException.convert(ServiceStateException.java:105)
        at 
org.apache.hadoop.service.AbstractService.start(AbstractService.java:203)
        at 
org.apache.hadoop.fs.s3a.auth.delegation.S3ADelegationTokens.serviceStart(S3ADelegationTokens.java:198)
        at 
org.apache.hadoop.service.AbstractService.start(AbstractService.java:194)
        at 
org.apache.hadoop.fs.s3a.S3AFileSystem.bindAWSClient(S3AFileSystem.java:517)
        at 
org.apache.hadoop.fs.s3a.S3AFileSystem.initialize(S3AFileSystem.java:366)
        at 
org.apache.hadoop.fs.s3a.S3ATestUtils.createTestFileSystem(S3ATestUtils.java:183)
        at 
org.apache.hadoop.fs.s3a.S3ATestUtils.createTestFileSystem(S3ATestUtils.java:145)
        at 
org.apache.hadoop.fs.s3a.ITestS3AAWSCredentialsProvider.createFailingFS(ITestS3AAWSCredentialsProvider.java:113)
        at 
org.apache.hadoop.fs.s3a.ITestS3AAWSCredentialsProvider.testBadConfiguration(ITestS3AAWSCredentialsProvider.java:61)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at 
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
        at 
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:498)
        at 
org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50)
        at 
org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
        at 
org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47)
        at 
org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
        at 
org.junit.internal.runners.statements.FailOnTimeout$CallableStatement.call(FailOnTimeout.java:298)
        at 
org.junit.internal.runners.statements.FailOnTimeout$CallableStatement.call(FailOnTimeout.java:292)
        at java.util.concurrent.FutureTask.run(FutureTask.java:266)
        at java.lang.Thread.run(Thread.java:748)
Caused by: java.io.IOException: From option fs.s3a.aws.credentials.provider 
java.lang.ClassNotFoundException: Class no.such.class not found
        at 
org.apache.hadoop.fs.s3a.S3AUtils.loadAWSProviderClasses(S3AUtils.java:629)
        at 
org.apache.hadoop.fs.s3a.S3AUtils.buildAWSProviderList(S3AUtils.java:652)
        at 
org.apache.hadoop.fs.s3a.auth.delegation.SessionTokenBinding.serviceStart(SessionTokenBinding.java:166)
        at 
org.apache.hadoop.service.AbstractService.start(AbstractService.java:194)
        ... 20 more
Caused by: java.lang.ClassNotFoundException: Class no.such.class not found
        at 
org.apache.hadoop.conf.Configuration.getClassByName(Configuration.java:2570)
        at 
org.apache.hadoop.conf.Configuration.getClasses(Configuration.java:2641)
        at 
org.apache.hadoop.fs.s3a.S3AUtils.loadAWSProviderClasses(S3AUtils.java:626)
        ... 23 more

[ERROR] 
testBadCredentialsConstructor(org.apache.hadoop.fs.s3a.ITestS3AAWSCredentialsProvider)
  Time elapsed: 0.057 s  <<< ERROR!
org.apache.hadoop.service.ServiceStateException: java.io.IOException: 
org.apache.hadoop.fs.s3a.ITestS3AAWSCredentialsProvider$BadCredentialsProviderConstructor
 constructor exception.  A class specified in fs.s3a.aws.credentials.provider 
must provide a public constructor of a supported signature, or a public factory 
method named getInstance that accepts no arguments.
        at 
org.apache.hadoop.service.ServiceStateException.convert(ServiceStateException.java:105)
        at 
org.apache.hadoop.service.AbstractService.start(AbstractService.java:203)
        at 
org.apache.hadoop.fs.s3a.auth.delegation.S3ADelegationTokens.serviceStart(S3ADelegationTokens.java:198)
        at 
org.apache.hadoop.service.AbstractService.start(AbstractService.java:194)
        at 
org.apache.hadoop.fs.s3a.S3AFileSystem.bindAWSClient(S3AFileSystem.java:517)
        at 
org.apache.hadoop.fs.s3a.S3AFileSystem.initialize(S3AFileSystem.java:366)
        at 
org.apache.hadoop.fs.s3a.S3ATestUtils.createTestFileSystem(S3ATestUtils.java:183)
        at 
org.apache.hadoop.fs.s3a.S3ATestUtils.createTestFileSystem(S3ATestUtils.java:145)
        at 
org.apache.hadoop.fs.s3a.ITestS3AAWSCredentialsProvider.createFailingFS(ITestS3AAWSCredentialsProvider.java:113)
        at 
org.apache.hadoop.fs.s3a.ITestS3AAWSCredentialsProvider.testBadCredentialsConstructor(ITestS3AAWSCredentialsProvider.java:100)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at 
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
        at 
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:498)
        at 
org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50)
        at 
org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
        at 
org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47)
        at 
org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
        at 
org.junit.internal.runners.statements.FailOnTimeout$CallableStatement.call(FailOnTimeout.java:298)
        at 
org.junit.internal.runners.statements.FailOnTimeout$CallableStatement.call(FailOnTimeout.java:292)
        at java.util.concurrent.FutureTask.run(FutureTask.java:266)
        at java.lang.Thread.run(Thread.java:748)
Caused by: java.io.IOException: 
org.apache.hadoop.fs.s3a.ITestS3AAWSCredentialsProvider$BadCredentialsProviderConstructor
 constructor exception.  A class specified in fs.s3a.aws.credentials.provider 
must provide a public constructor of a supported signature, or a public factory 
method named getInstance that accepts no arguments.
        at 
org.apache.hadoop.fs.s3a.S3AUtils.createAWSCredentialProvider(S3AUtils.java:743)
        at 
org.apache.hadoop.fs.s3a.S3AUtils.buildAWSProviderList(S3AUtils.java:670)
        at 
org.apache.hadoop.fs.s3a.auth.delegation.SessionTokenBinding.serviceStart(SessionTokenBinding.java:166)
        at 
org.apache.hadoop.service.AbstractService.start(AbstractService.java:194)
        ... 20 more
{code}


> ITestS3AAWSCredentialsProvider tests fail if a bucket has DTs enabled
> ---------------------------------------------------------------------
>
>                 Key: HADOOP-16574
>                 URL: https://issues.apache.org/jira/browse/HADOOP-16574
>             Project: Hadoop Common
>          Issue Type: Sub-task
>          Components: fs/s3, test
>    Affects Versions: 3.3.0
>            Reporter: Steve Loughran
>            Priority: Minor
>
> If you enable DTs on a bucket, then those tests which force failures from bad 
> credential providers fail -the IOE they look for is wrapped in a 
> ServiceStateException
> Proposed: catch those and rethrow the nested IOE



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