Zoltan Haindrich created TEZ-3860:
-------------------------------------
Summary: JDK9: ReflectionUtils may not use URLClassLoader
Key: TEZ-3860
URL: https://issues.apache.org/jira/browse/TEZ-3860
Project: Apache Tez
Issue Type: Sub-task
Reporter: Zoltan Haindrich
The following code
https://github.com/apache/tez/blob/master/tez-api/src/main/java/org/apache/tez/common/ReflectionUtils.java#L125
is not compatible with JDK9 since the classloader is an AppClassLoader
causes exceptions like this:
{code}
java.lang.ClassCastException:
java.base/jdk.internal.loader.ClassLoaders$AppClassLoader cannot be cast to
java.base/java.net.URLClassLoader
at
org.apache.tez.common.ReflectionUtils.addResourcesToSystemClassLoader(ReflectionUtils.java:125)
~[tez-api-0.9.0.jar:0.9.0]
at
org.apache.tez.dag.utils.RelocalizationUtils.addUrlsToClassPath(RelocalizationUtils.java:57)
~[tez-common-0.9.0.jar:0.9.0]
at
org.apache.tez.dag.app.dag.impl.DAGImpl$StartTransition.transition(DAGImpl.java:1793)
~[tez-dag-0.9.0.jar:0.9.0]
at
org.apache.tez.dag.app.dag.impl.DAGImpl$StartTransition.transition(DAGImpl.java:1776)
~[tez-dag-0.9.0.jar:0.9.0]
at
org.apache.hadoop.yarn.state.StateMachineFactory$SingleInternalArc.doTransition(StateMachineFactory.java:362)
~[hadoop-yarn-common-2.8.1.jar:?]
at
org.apache.hadoop.yarn.state.StateMachineFactory.doTransition(StateMachineFactory.java:302)
~[hadoop-yarn-common-2.8.1.jar:?]
at
org.apache.hadoop.yarn.state.StateMachineFactory.access$300(StateMachineFactory.java:46)
~[hadoop-yarn-common-2.8.1.jar:?]
at
org.apache.hadoop.yarn.state.StateMachineFactory$InternalStateMachine.doTransition(StateMachineFactory.java:448)
~[hadoop-yarn-common-2.8.1.jar:?]
at
org.apache.tez.state.StateMachineTez.doTransition(StateMachineTez.java:59)
~[tez-dag-0.9.0.jar:0.9.0]
at org.apache.tez.dag.app.dag.impl.DAGImpl.handle(DAGImpl.java:1156)
[tez-dag-0.9.0.jar:0.9.0]
at org.apache.tez.dag.app.dag.impl.DAGImpl.handle(DAGImpl.java:147)
[tez-dag-0.9.0.jar:0.9.0]
at
org.apache.tez.dag.app.DAGAppMaster$DagEventDispatcher.handle(DAGAppMaster.java:2251)
[tez-dag-0.9.0.jar:0.9.0]
at
org.apache.tez.dag.app.DAGAppMaster$DagEventDispatcher.handle(DAGAppMaster.java:2242)
[tez-dag-0.9.0.jar:0.9.0]
at
org.apache.tez.common.AsyncDispatcher.dispatch(AsyncDispatcher.java:180)
[tez-common-0.9.0.jar:0.9.0]
at
org.apache.tez.common.AsyncDispatcher$1.run(AsyncDispatcher.java:115)
[tez-common-0.9.0.jar:0.9.0]
at java.base/java.lang.Thread.run(Thread.java:844) [?:?]
{code}
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