[
https://issues.apache.org/jira/browse/FLINK-27219?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17541237#comment-17541237
]
Shengkai Fang commented on FLINK-27219:
---------------------------------------
Hi, all. I still can't reproduce the exception in my local environment or in
the azure pipelines(in [~hxbks2ks]'s environment). In my local environment, I
just use the command as follows(it's almost same comparing to the command that
starts the tests):
```
mvn -Dmaven.wagon.http.pool=false -Dorg.slf4j.simpleLogger.showDateTime=true
-Dorg.slf4j.simpleLogger.dateTimeFormat=HH:mm:ss.SSS
-Dorg.slf4j.simpleLogger.log.org.apache.maven.cli.transfer.Slf4jMavenTransferListener=warn
--no-snapshot-updates -B -Dhadoop.version=2.8.5 -Dinclude_hadoop_aws
-Dscala-2.12 -Djdk11 -Pjava11-target -Duse-alibaba-mirror -Dflink.forkCount=2
-Dflink.forkCountTestPackage=2 -Dfast -Pskip-webui-build
-Dlog.dir=/__w/_temp/debug_files
-Dlog4j.configurationFile=file:///__w/2/s/tools/ci/log4j.properties
-Dflink.tests.with-openssl -Dflink.tests.check-segment-multiple-free
-Darchunit.freeze.store.default.allowStoreUpdate=false -Dhadoop.version=2.8.5
-Dinclude_hadoop_aws -Dscala-2.12 -Djdk11 -Pjava11-target -pl
flink-table/flink-sql-client verify
```
So I think we can print the exception stack when getting errors in the sql
client test. At least, we can know what is the problem.
> CliClientITCase.testSqlStatements failed on azure with jdk11
> ------------------------------------------------------------
>
> Key: FLINK-27219
> URL: https://issues.apache.org/jira/browse/FLINK-27219
> Project: Flink
> Issue Type: Bug
> Components: Table SQL / Client
> Affects Versions: 1.15.0, 1.16.0
> Reporter: Yun Gao
> Assignee: Shengkai Fang
> Priority: Critical
> Labels: pull-request-available, test-stability
>
> {code:java}
> Apr 13 04:56:44 [ERROR] Could not execute SQL statement. Reason:
> Apr 13 04:56:44 java.lang.ClassCastException: class
> jdk.internal.loader.ClassLoaders$AppClassLoader cannot be cast to class
> java.net.URLClassLoader (jdk.internal.loader.ClassLoaders$AppClassLoader and
> java.net.URLClassLoader are in module java.base of loader 'bootstrap')
> Apr 13 04:56:44 !error
> Apr 13 04:56:44
> Apr 13 04:56:44 # test "ctas" only supported in Hive Dialect
> Apr 13 04:56:44 CREATE TABLE foo as select 1;
> Apr 13 04:56:44 [ERROR] Could not execute SQL statement. Reason:
> Apr 13 04:56:44 java.lang.ClassCastException: class
> jdk.internal.loader.ClassLoaders$AppClassLoader cannot be cast to class
> java.net.URLClassLoader (jdk.internal.loader.ClassLoaders$AppClassLoader and
> java.net.URLClassLoader are in module java.base of loader 'bootstrap')
> Apr 13 04:56:44 !error
> Apr 13 04:56:44
> Apr 13 04:56:44 # list the configured configuration
> Apr 13 04:56:44 set;
> Apr 13 04:56:44 [ERROR] Could not execute SQL statement. Reason:
> Apr 13 04:56:44 java.lang.ClassCastException: class
> jdk.internal.loader.ClassLoaders$AppClassLoader cannot be cast to class
> java.net.URLClassLoader (jdk.internal.loader.ClassLoaders$AppClassLoader and
> java.net.URLClassLoader are in module java.base of loader 'bootstrap')
> Apr 13 04:56:44 !error
> Apr 13 04:56:44
> Apr 13 04:56:44 # reset the configuration
> Apr 13 04:56:44 reset;
> Apr 13 04:56:44 [ERROR] Could not execute SQL statement. Reason:
> Apr 13 04:56:44 java.lang.ClassCastException: class
> jdk.internal.loader.ClassLoaders$AppClassLoader cannot be cast to class
> java.net.URLClassLoader (jdk.internal.loader.ClassLoaders$AppClassLoader and
> java.net.URLClassLoader are in module java.base of loader 'bootstrap')
> Apr 13 04:56:44 !error
> Apr 13 04:56:44
> Apr 13 04:56:44 set;
> Apr 13 04:56:44 [ERROR] Could not execute SQL statement. Reason:
> Apr 13 04:56:44 java.lang.ClassCastException: class
> jdk.internal.loader.ClassLoaders$AppClassLoader cannot be cast to class
> java.net.URLClassLoader (jdk.internal.loader.ClassLoaders$AppClassLoader and
> java.net.URLClassLoader are in module java.base of loader 'bootstrap')
> Apr 13 04:56:44 !error
> ...
> Apr 13 04:56:44 [ERROR] Could not execute SQL statement. Reason:
> Apr 13 04:56:44 org.apache.flink.sql.parser.impl.ParseException: Encountered
> "STRING" at line 10, column 27.
> Apr 13 04:56:44 Was expecting one of:
> Apr 13 04:56:44 ")" ...
> Apr 13 04:56:44 "," ...
> Apr 13 04:56:44
> Apr 13 04:56:44 !error
> ...
> Apr 13 04:56:44 SHOW JARS;
> Apr 13 04:56:44 Empty set
> Apr 13 04:56:44 !ok
> Apr 13 04:56:44 "
> Apr 13 04:56:44 at
> java.base/jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance0(Native
> Method)
> Apr 13 04:56:44 at
> java.base/jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
> Apr 13 04:56:44 at
> java.base/jdk.internal.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
> Apr 13 04:56:44 at
> org.apache.flink.table.client.cli.CliClientITCase.testSqlStatements(CliClientITCase.java:139)
> Apr 13 04:56:44 at
> java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> Apr 13 04:56:44 at
> java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
> Apr 13 04:56:44 at
> java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> Apr 13 04:56:44 at
> java.base/java.lang.reflect.Method.invoke(Method.java:566)
> Apr 13 04:56:44 at
> org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:59)
> Apr 13 04:56:44 at
> org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
> Apr 13 04:56:44 at
> org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:56)
> Apr 13 04:56:44 at
> org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
> Apr 13 04:56:44 at
> org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:26)
> Apr 13 04:56:44 at
> org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:27)
> Apr 13 04:56:44 at
> org.apache.flink.util.TestNameProvider$1.evaluate(TestNameProvider.java:45)
> Apr 13 04:56:44 at
> org.junit.rules.TestWatcher$1.evaluate(TestWatcher.java:61)
> Apr 13 04:56:44 at
> org.junit.runners.ParentRunner$3.evaluate(ParentRunner.java:306)
> Apr 13 04:56:44 at
> org.junit.runners.BlockJUnit4ClassRunner$1.evaluate(BlockJUnit4ClassRunner.java:100)
> Apr 13 04:56:44 at
> org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:366)
> Apr 13 04:56:44 at
> org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:103)
> Apr 13 04:56:44 at
> org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:63)
> Apr 13 04:56:44 at
> org.junit.runners.ParentRunner$4.run(ParentRunner.java:331)
> Apr 13 04:56:44 at
> org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:79)
> Apr 13 04:56:44 at
> org.junit.runners.ParentRunner.runChildren(ParentRunner.java:329)
> Apr 13 04:56:44 at
> org.junit.runners.ParentRunner.access$100(ParentRunner.java:66)
> Apr 13 04:56:44 at
> org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:293)
> Apr 13 04:56:44 at
> org.junit.runners.ParentRunner.run(ParentRunner.java:413)
> Apr 13 04:56:44 at org.junit.runners.Suite.runChild(Suite.java:128)
> Apr 13 04:56:44 at org.junit.runners.Suite.runChild(Suite.java:27)
> Apr 13 04:56:44 at
> org.junit.runners.ParentRunner$4.run(ParentRunner.java:331)
> Apr 13 04:56:44 at
> org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:79)
> Apr 13 04:56:44 at
> org.junit.runners.ParentRunner.runChildren(ParentRunner.java:329)
> Apr 13 04:56:44 at
> org.junit.runners.ParentRunner.access$100(ParentRunner.java:66)
> {code}
> https://dev.azure.com/apache-flink/apache-flink/_build/results?buildId=34596&view=logs&j=ce3801ad-3bd5-5f06-d165-34d37e757d90&t=5e4d9387-1dcc-5885-a901-90469b7e6d2f&l=11357
> This seems to only occur on jdk11
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