[jira] [Created] (FLINK-11155) HadoopFreeFsFactoryTest fails with ClassCastException

["Gary Yao (JIRA)" <ji...@apache.org>]

Gary Yao created FLINK-11155:
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             Summary: HadoopFreeFsFactoryTest fails with ClassCastException
                 Key: FLINK-11155
                 URL: https://issues.apache.org/jira/browse/FLINK-11155
             Project: Flink
          Issue Type: Sub-task
            Reporter: Gary Yao


{{HadoopFreeFsFactoryTest#testHadoopFactoryInstantiationWithoutHadoop}} fails with a ClassCastException because we try to cast the result of {{getClassLoader}} to {{URLClassLoader}} (also see https://stackoverflow.com/questions/46694600/java-9-compatability-issue-with-classloader-getsystemclassloader)
{noformat}
java.lang.ClassCastException: java.base/jdk.internal.loader.ClassLoaders$AppClassLoader cannot be cast to java.base/java.net.URLClassLoader

	at org.apache.flink.runtime.fs.hdfs.HadoopFreeFsFactoryTest.testHadoopFactoryInstantiationWithoutHadoop(HadoopFreeFsFactoryTest.java:46)
	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.base/java.lang.reflect.Method.invoke(Method.java:564)
{noformat}



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