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https://issues.apache.org/jira/browse/HIVE-22190?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Francisco Guerrero reassigned HIVE-22190:
-----------------------------------------
Assignee: Francisco Guerrero
> Class HiveMetaStoreClient fails to instantiate when running on Java 11
> ----------------------------------------------------------------------
>
> Key: HIVE-22190
> URL: https://issues.apache.org/jira/browse/HIVE-22190
> Project: Hive
> Issue Type: Bug
> Components: Hive
> Affects Versions: 3.1.2, 2.3.6
> Environment: Java Version: "11.0.3" 2019-04-16 LTS
> Reporter: Francisco Guerrero
> Assignee: Francisco Guerrero
> Priority: Major
> Labels: pull-request-available
> Fix For: 2.3.7
>
> Attachments: HIVE-22190.01.patch, HIVE-22190.01.patch
>
> Time Spent: 20m
> Remaining Estimate: 0h
>
> HiveMetaStoreClient fails to initialize in JDK with error:
> Unable to instantiate org.apache.hadoop.hive.metastore.HiveMetaStoreClient
> with cause
> class [Ljava.lang.Object; cannot be cast to class [Ljava.net.URI;
> ([Ljava.lang.Object; and [Ljava.net.URI; are in module java.base of loader
> 'bootstrap')
> This is due the way toArray is being invoked. The compiles and runs well on
> Java 8. But when running in Java 11, the class instantiation fails. This is a
> snippet of code to reproduce the issue:
> {noformat}
> URI metastoreUris[] = new URI[2];
> try {
> metastoreUris[0] = new URI("http://google.com";);
> } catch (URISyntaxException e) {
> e.printStackTrace();
> }
> List uriList = Arrays.asList(metastoreUris);
> Collections.shuffle(uriList);
> metastoreUris = (URI[]) uriList.toArray();
> {noformat}
> This is causing any client using HiveMetaStoreClient fail, because the
> constructor is unable to initialize. The type erasure is handled differently
> in Java 8 and Java 11.
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