[jira] [Commented] (BEAM-2136) AvroCoderTest.testTwoClassLoaders fails on beam_PostCommit_Java_ValidatesRunner_Dataflow

2017-05-03 Thread ASF GitHub Bot (JIRA) 

[ 
https://issues.apache.org/jira/browse/BEAM-2136?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=15995689#comment-15995689
 ] 

ASF GitHub Bot commented on BEAM-2136:
--

Github user asfgit closed the pull request at:

https://github.com/apache/beam/pull/2861


> AvroCoderTest.testTwoClassLoaders fails on 
> beam_PostCommit_Java_ValidatesRunner_Dataflow
> 
>
> Key: BEAM-2136
> URL: https://issues.apache.org/jira/browse/BEAM-2136
> Project: Beam
>  Issue Type: Bug
>  Components: sdk-java-core
>Reporter: Luke Cwik
>Assignee: Kenneth Knowles
>Priority: Minor
>
> Example failure:
> https://builds.apache.org/job/beam_PostCommit_Java_ValidatesRunner_Dataflow/3003/org.apache.beam$beam-sdks-java-core/testReport/org.apache.beam.sdk.coders/AvroCoderTest/testTwoClassLoaders/
> java.lang.NullPointerException
>   at com.google.common.io.ByteStreams.toByteArray(ByteStreams.java:165)
>   at 
> org.apache.beam.sdk.coders.AvroCoderTest$InterceptingUrlClassLoader.loadClass(AvroCoderTest.java:179)
>   at 
> org.apache.beam.sdk.coders.AvroCoderTest.testTwoClassLoaders(AvroCoderTest.java:199)
>   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.apache.beam.sdk.testing.TestPipeline$1.evaluate(TestPipeline.java:307)
>   at org.junit.rules.RunRules.evaluate(RunRules.java:20)
>   at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:325)
>   at 
> org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:78)
>   at 
> org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:57)
>   at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290)
>   at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71)
>   at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288)
>   at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58)
>   at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268)
>   at org.junit.runners.ParentRunner.run(ParentRunner.java:363)
>   at org.junit.runners.Suite.runChild(Suite.java:128)
>   at org.junit.runners.Suite.runChild(Suite.java:27)
>   at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290)
>   at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71)
>   at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288)
>   at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58)
>   at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268)
>   at org.junit.runners.ParentRunner.run(ParentRunner.java:363)
>   at org.apache.maven.surefire.junitcore.JUnitCore.run(JUnitCore.java:55)
>   at 
> org.apache.maven.surefire.junitcore.JUnitCoreWrapper.createRequestAndRun(JUnitCoreWrapper.java:137)
>   at 
> org.apache.maven.surefire.junitcore.JUnitCoreWrapper.executeEager(JUnitCoreWrapper.java:107)
>   at 
> org.apache.maven.surefire.junitcore.JUnitCoreWrapper.execute(JUnitCoreWrapper.java:83)
>   at 
> org.apache.maven.surefire.junitcore.JUnitCoreWrapper.execute(JUnitCoreWrapper.java:75)
>   at 
> org.apache.maven.surefire.junitcore.JUnitCoreProvider.invoke(JUnitCoreProvider.java:157)
>   at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
>   at 
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
>   at 
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
>   at java.lang.reflect.Method.invoke(Method.java:498)
>   at 
> org.apache.maven.surefire.util.ReflectionUtils.invokeMethodWithArray2(ReflectionUtils.java:202)
>   at 
> org.apache.maven.surefire.booter.ProviderFactory$ProviderProxy.invoke(ProviderFactory.java:158)
>   at 
> org.apache.maven.surefire.booter.ProviderFactory.invokeProvider(ProviderFactory.java:81)
>   at 
> org.apache.maven.plugin.surefire.InPluginVMSurefireStarter.runSuitesInProcess(InPluginVMSurefireStarter.java:84)
>   at 
> org.apache.maven.plugin.surefire.AbstractSurefireMojo.executeProvider(AbstractSurefireMojo.java:1060)
>   at 
>

[jira] [Commented] (BEAM-2136) AvroCoderTest.testTwoClassLoaders fails on beam_PostCommit_Java_ValidatesRunner_Dataflow

2017-05-03 Thread ASF GitHub Bot (JIRA) 

[ 
https://issues.apache.org/jira/browse/BEAM-2136?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=15995189#comment-15995189
 ] 

ASF GitHub Bot commented on BEAM-2136:
--

GitHub user kennknowles opened a pull request:

https://github.com/apache/beam/pull/2861

[BEAM-2136] Use Thread context ClassLoader as parent in AvroCoderTest

Be sure to do all of the following to help us incorporate your contribution
quickly and easily:

 - [ ] Make sure the PR title is formatted like:
   `[BEAM-] Description of pull request`
 - [ ] Make sure tests pass via `mvn clean verify`.
 - [ ] Replace `` in the title with the actual Jira issue
   number, if there is one.
 - [ ] If this contribution is large, please file an Apache
   [Individual Contributor License 
Agreement](https://www.apache.org/licenses/icla.pdf).

---

R: @lukecwik @aviemzur 

You can merge this pull request into a Git repository by running:

$ git pull https://github.com/kennknowles/beam AvroCoderTest

Alternatively you can review and apply these changes as the patch at:

https://github.com/apache/beam/pull/2861.patch

To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:

This closes #2861


commit cda1405dbdc25888eae32395149c3425bed8dd7f
Author: Kenneth Knowles 
Date:   2017-05-03T16:42:01Z

Use Thread context ClassLoader as parent in AvroCoderTest




> AvroCoderTest.testTwoClassLoaders fails on 
> beam_PostCommit_Java_ValidatesRunner_Dataflow
> 
>
> Key: BEAM-2136
> URL: https://issues.apache.org/jira/browse/BEAM-2136
> Project: Beam
>  Issue Type: Bug
>  Components: sdk-java-core
>Reporter: Luke Cwik
>Assignee: Kenneth Knowles
>Priority: Minor
>
> Example failure:
> https://builds.apache.org/job/beam_PostCommit_Java_ValidatesRunner_Dataflow/3003/org.apache.beam$beam-sdks-java-core/testReport/org.apache.beam.sdk.coders/AvroCoderTest/testTwoClassLoaders/
> java.lang.NullPointerException
>   at com.google.common.io.ByteStreams.toByteArray(ByteStreams.java:165)
>   at 
> org.apache.beam.sdk.coders.AvroCoderTest$InterceptingUrlClassLoader.loadClass(AvroCoderTest.java:179)
>   at 
> org.apache.beam.sdk.coders.AvroCoderTest.testTwoClassLoaders(AvroCoderTest.java:199)
>   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.apache.beam.sdk.testing.TestPipeline$1.evaluate(TestPipeline.java:307)
>   at org.junit.rules.RunRules.evaluate(RunRules.java:20)
>   at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:325)
>   at 
> org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:78)
>   at 
> org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:57)
>   at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290)
>   at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71)
>   at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288)
>   at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58)
>   at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268)
>   at org.junit.runners.ParentRunner.run(ParentRunner.java:363)
>   at org.junit.runners.Suite.runChild(Suite.java:128)
>   at org.junit.runners.Suite.runChild(Suite.java:27)
>   at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290)
>   at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71)
>   at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288)
>   at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58)
>   at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268)
>   at org.junit.runners.ParentRunner.run(ParentRunner.java:363)
>   at org.apache.maven.surefire.junitcore.JUnitCore.run(JUnitCore.java:55)
>   at 
> org.apache.maven.surefire.junitcore.JUnitCoreWrapper.createRequestAndRun(JUnitCoreWrapper.java:137)
>   at 
>

[jira] [Commented] (BEAM-2136) AvroCoderTest.testTwoClassLoaders fails on beam_PostCommit_Java_ValidatesRunner_Dataflow

2017-05-03 Thread Kenneth Knowles (JIRA) 

[ 
https://issues.apache.org/jira/browse/BEAM-2136?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=15995034#comment-15995034
 ] 

Kenneth Knowles commented on BEAM-2136:
---

Another thing that comes out of this - the test suite should not be running in 
this configuration, but we have been lazy/resistant about getting a proper 
build that does not do extra work of validating prereqs to the thing actually 
under test. I guess this is the one upside.

> AvroCoderTest.testTwoClassLoaders fails on 
> beam_PostCommit_Java_ValidatesRunner_Dataflow
> 
>
> Key: BEAM-2136
> URL: https://issues.apache.org/jira/browse/BEAM-2136
> Project: Beam
>  Issue Type: Bug
>  Components: sdk-java-core
>Reporter: Luke Cwik
>Assignee: Kenneth Knowles
>Priority: Minor
>
> Example failure:
> https://builds.apache.org/job/beam_PostCommit_Java_ValidatesRunner_Dataflow/3003/org.apache.beam$beam-sdks-java-core/testReport/org.apache.beam.sdk.coders/AvroCoderTest/testTwoClassLoaders/
> java.lang.NullPointerException
>   at com.google.common.io.ByteStreams.toByteArray(ByteStreams.java:165)
>   at 
> org.apache.beam.sdk.coders.AvroCoderTest$InterceptingUrlClassLoader.loadClass(AvroCoderTest.java:179)
>   at 
> org.apache.beam.sdk.coders.AvroCoderTest.testTwoClassLoaders(AvroCoderTest.java:199)
>   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.apache.beam.sdk.testing.TestPipeline$1.evaluate(TestPipeline.java:307)
>   at org.junit.rules.RunRules.evaluate(RunRules.java:20)
>   at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:325)
>   at 
> org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:78)
>   at 
> org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:57)
>   at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290)
>   at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71)
>   at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288)
>   at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58)
>   at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268)
>   at org.junit.runners.ParentRunner.run(ParentRunner.java:363)
>   at org.junit.runners.Suite.runChild(Suite.java:128)
>   at org.junit.runners.Suite.runChild(Suite.java:27)
>   at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290)
>   at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71)
>   at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288)
>   at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58)
>   at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268)
>   at org.junit.runners.ParentRunner.run(ParentRunner.java:363)
>   at org.apache.maven.surefire.junitcore.JUnitCore.run(JUnitCore.java:55)
>   at 
> org.apache.maven.surefire.junitcore.JUnitCoreWrapper.createRequestAndRun(JUnitCoreWrapper.java:137)
>   at 
> org.apache.maven.surefire.junitcore.JUnitCoreWrapper.executeEager(JUnitCoreWrapper.java:107)
>   at 
> org.apache.maven.surefire.junitcore.JUnitCoreWrapper.execute(JUnitCoreWrapper.java:83)
>   at 
> org.apache.maven.surefire.junitcore.JUnitCoreWrapper.execute(JUnitCoreWrapper.java:75)
>   at 
> org.apache.maven.surefire.junitcore.JUnitCoreProvider.invoke(JUnitCoreProvider.java:157)
>   at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
>   at 
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
>   at 
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
>   at java.lang.reflect.Method.invoke(Method.java:498)
>   at 
> org.apache.maven.surefire.util.ReflectionUtils.invokeMethodWithArray2(ReflectionUtils.java:202)
>   at 
> org.apache.maven.surefire.booter.ProviderFactory$ProviderProxy.invoke(ProviderFactory.java:158)
>   at 
> org.apache.maven.surefire.booter.ProviderFactory.invokeProvider(ProviderFactory.java:81)
>   at 
>

[jira] [Commented] (BEAM-2136) AvroCoderTest.testTwoClassLoaders fails on beam_PostCommit_Java_ValidatesRunner_Dataflow

2017-05-01 Thread Luke Cwik (JIRA) 

[ 
https://issues.apache.org/jira/browse/BEAM-2136?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=15992124#comment-15992124
 ] 

Luke Cwik commented on BEAM-2136:
-

Yes, I marked it minor and not part of first stable release for those reasons.

> AvroCoderTest.testTwoClassLoaders fails on 
> beam_PostCommit_Java_ValidatesRunner_Dataflow
> 
>
> Key: BEAM-2136
> URL: https://issues.apache.org/jira/browse/BEAM-2136
> Project: Beam
>  Issue Type: Bug
>  Components: sdk-java-core
>Reporter: Luke Cwik
>Assignee: Kenneth Knowles
>Priority: Minor
> Fix For: First stable release
>
>
> Example failure:
> https://builds.apache.org/job/beam_PostCommit_Java_ValidatesRunner_Dataflow/3003/org.apache.beam$beam-sdks-java-core/testReport/org.apache.beam.sdk.coders/AvroCoderTest/testTwoClassLoaders/
> java.lang.NullPointerException
>   at com.google.common.io.ByteStreams.toByteArray(ByteStreams.java:165)
>   at 
> org.apache.beam.sdk.coders.AvroCoderTest$InterceptingUrlClassLoader.loadClass(AvroCoderTest.java:179)
>   at 
> org.apache.beam.sdk.coders.AvroCoderTest.testTwoClassLoaders(AvroCoderTest.java:199)
>   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.apache.beam.sdk.testing.TestPipeline$1.evaluate(TestPipeline.java:307)
>   at org.junit.rules.RunRules.evaluate(RunRules.java:20)
>   at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:325)
>   at 
> org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:78)
>   at 
> org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:57)
>   at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290)
>   at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71)
>   at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288)
>   at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58)
>   at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268)
>   at org.junit.runners.ParentRunner.run(ParentRunner.java:363)
>   at org.junit.runners.Suite.runChild(Suite.java:128)
>   at org.junit.runners.Suite.runChild(Suite.java:27)
>   at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290)
>   at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71)
>   at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288)
>   at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58)
>   at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268)
>   at org.junit.runners.ParentRunner.run(ParentRunner.java:363)
>   at org.apache.maven.surefire.junitcore.JUnitCore.run(JUnitCore.java:55)
>   at 
> org.apache.maven.surefire.junitcore.JUnitCoreWrapper.createRequestAndRun(JUnitCoreWrapper.java:137)
>   at 
> org.apache.maven.surefire.junitcore.JUnitCoreWrapper.executeEager(JUnitCoreWrapper.java:107)
>   at 
> org.apache.maven.surefire.junitcore.JUnitCoreWrapper.execute(JUnitCoreWrapper.java:83)
>   at 
> org.apache.maven.surefire.junitcore.JUnitCoreWrapper.execute(JUnitCoreWrapper.java:75)
>   at 
> org.apache.maven.surefire.junitcore.JUnitCoreProvider.invoke(JUnitCoreProvider.java:157)
>   at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
>   at 
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
>   at 
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
>   at java.lang.reflect.Method.invoke(Method.java:498)
>   at 
> org.apache.maven.surefire.util.ReflectionUtils.invokeMethodWithArray2(ReflectionUtils.java:202)
>   at 
> org.apache.maven.surefire.booter.ProviderFactory$ProviderProxy.invoke(ProviderFactory.java:158)
>   at 
> org.apache.maven.surefire.booter.ProviderFactory.invokeProvider(ProviderFactory.java:81)
>   at 
> org.apache.maven.plugin.surefire.InPluginVMSurefireStarter.runSuitesInProcess(InPluginVMSurefireStarter.java:84)
>   at 
>

[jira] [Commented] (BEAM-2136) AvroCoderTest.testTwoClassLoaders fails on beam_PostCommit_Java_ValidatesRunner_Dataflow

2017-05-01 Thread Kenneth Knowles (JIRA) 

[ 
https://issues.apache.org/jira/browse/BEAM-2136?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=15992087#comment-15992087
 ] 

Kenneth Knowles commented on BEAM-2136:
---

I presume you marked this minor because this isn't actually a scenario that 
occurs in Dataflow? As long as the other tests and nothing else catastrophic is 
happening I agree and will remove it from FSR.

> AvroCoderTest.testTwoClassLoaders fails on 
> beam_PostCommit_Java_ValidatesRunner_Dataflow
> 
>
> Key: BEAM-2136
> URL: https://issues.apache.org/jira/browse/BEAM-2136
> Project: Beam
>  Issue Type: Bug
>  Components: sdk-java-core
>Reporter: Luke Cwik
>Assignee: Kenneth Knowles
>Priority: Minor
> Fix For: First stable release
>
>
> Example failure:
> https://builds.apache.org/job/beam_PostCommit_Java_ValidatesRunner_Dataflow/3003/org.apache.beam$beam-sdks-java-core/testReport/org.apache.beam.sdk.coders/AvroCoderTest/testTwoClassLoaders/
> java.lang.NullPointerException
>   at com.google.common.io.ByteStreams.toByteArray(ByteStreams.java:165)
>   at 
> org.apache.beam.sdk.coders.AvroCoderTest$InterceptingUrlClassLoader.loadClass(AvroCoderTest.java:179)
>   at 
> org.apache.beam.sdk.coders.AvroCoderTest.testTwoClassLoaders(AvroCoderTest.java:199)
>   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.apache.beam.sdk.testing.TestPipeline$1.evaluate(TestPipeline.java:307)
>   at org.junit.rules.RunRules.evaluate(RunRules.java:20)
>   at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:325)
>   at 
> org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:78)
>   at 
> org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:57)
>   at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290)
>   at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71)
>   at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288)
>   at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58)
>   at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268)
>   at org.junit.runners.ParentRunner.run(ParentRunner.java:363)
>   at org.junit.runners.Suite.runChild(Suite.java:128)
>   at org.junit.runners.Suite.runChild(Suite.java:27)
>   at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290)
>   at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71)
>   at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288)
>   at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58)
>   at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268)
>   at org.junit.runners.ParentRunner.run(ParentRunner.java:363)
>   at org.apache.maven.surefire.junitcore.JUnitCore.run(JUnitCore.java:55)
>   at 
> org.apache.maven.surefire.junitcore.JUnitCoreWrapper.createRequestAndRun(JUnitCoreWrapper.java:137)
>   at 
> org.apache.maven.surefire.junitcore.JUnitCoreWrapper.executeEager(JUnitCoreWrapper.java:107)
>   at 
> org.apache.maven.surefire.junitcore.JUnitCoreWrapper.execute(JUnitCoreWrapper.java:83)
>   at 
> org.apache.maven.surefire.junitcore.JUnitCoreWrapper.execute(JUnitCoreWrapper.java:75)
>   at 
> org.apache.maven.surefire.junitcore.JUnitCoreProvider.invoke(JUnitCoreProvider.java:157)
>   at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
>   at 
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
>   at 
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
>   at java.lang.reflect.Method.invoke(Method.java:498)
>   at 
> org.apache.maven.surefire.util.ReflectionUtils.invokeMethodWithArray2(ReflectionUtils.java:202)
>   at 
> org.apache.maven.surefire.booter.ProviderFactory$ProviderProxy.invoke(ProviderFactory.java:158)
>   at 
> org.apache.maven.surefire.booter.ProviderFactory.invokeProvider(ProviderFactory.java:81)
>   at 
>