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https://issues.apache.org/jira/browse/FLINK-26527?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Martijn Visser closed FLINK-26527.
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Resolution: Not A Problem
Thanks for getting back on this [~tinny] ! Good luck on your next steps
> ClassCastException in TemporaryClassLoaderContext
> -------------------------------------------------
>
> Key: FLINK-26527
> URL: https://issues.apache.org/jira/browse/FLINK-26527
> Project: Flink
> Issue Type: Bug
> Components: Client / Job Submission
> Affects Versions: 1.13.5, 1.14.3
> Reporter: shizhengchao
> Priority: Major
>
> When I try to run sql using flink's classloader, I get the following
> exception：
> {code:java}
> Exception in thread "main" java.lang.ClassCastException:
> org.codehaus.janino.CompilerFactory cannot be cast to
> org.codehaus.commons.compiler.ICompilerFactory
> at
> org.codehaus.commons.compiler.CompilerFactoryFactory.getCompilerFactory(CompilerFactoryFactory.java:129)
>
> ……{code}
> my code is like this：
> {code:java}
> Configuration configuration = new Configuration();
> configuration.set(CoreOptions.CLASSLOADER_RESOLVE_ORDER, "child-first");
> List<URL> dependencies =
> FlinkClassLoader.getFlinkDependencies(FLINK_HOME/lib);
> URLClassLoader classLoader = ClientUtils.buildUserCodeClassLoader(
> dependencies,
> Collections.emptyList(),
> SessionContext.class.getClassLoader(),
> configuration);
> try (TemporaryClassLoaderContext ignored =
> TemporaryClassLoaderContext.of(classLoader)) {
> tableEnv.explainSql(sql);
>
> //CompilerFactoryFactory.getCompilerFactory("org.codehaus.janino.CompilerFactory");
> } {code}
> But, if you change `classloader.resolve-order` to `parent-first`, everything
> works fine
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