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https://issues.apache.org/jira/browse/HIVE-21508?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16925543#comment-16925543
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Hive QA commented on HIVE-21508:
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|| Vote || Subsystem || Runtime || Comment ||
|| || || || {color:brown} Prechecks {color} ||
| {color:green}+1{color} | {color:green} @author {color} | {color:green} 0m
0s{color} | {color:green} The patch does not contain any @author tags. {color} |
|| || || || {color:brown} master Compile Tests {color} ||
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 6m
47s{color} | {color:green} master passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 0m
23s{color} | {color:green} master passed {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green} 0m
10s{color} | {color:green} master passed {color} |
| {color:blue}0{color} | {color:blue} findbugs {color} | {color:blue} 1m
51s{color} | {color:blue} standalone-metastore/metastore-common in master has
32 extant Findbugs warnings. {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 0m
42s{color} | {color:green} master passed {color} |
|| || || || {color:brown} Patch Compile Tests {color} ||
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 0m
26s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 0m
23s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green} 0m
23s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green} 0m
10s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} whitespace {color} | {color:green} 0m
0s{color} | {color:green} The patch has no whitespace issues. {color} |
| {color:green}+1{color} | {color:green} findbugs {color} | {color:green} 1m
58s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 0m
43s{color} | {color:green} the patch passed {color} |
|| || || || {color:brown} Other Tests {color} ||
| {color:green}+1{color} | {color:green} asflicense {color} | {color:green} 0m
10s{color} | {color:green} The patch does not generate ASF License warnings.
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| {color:black}{color} | {color:black} {color} | {color:black} 14m 1s{color} |
{color:black} {color} |
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|| Subsystem || Report/Notes ||
| Optional Tests | asflicense javac javadoc findbugs checkstyle compile |
| uname | Linux hiveptest-server-upstream 3.16.0-4-amd64 #1 SMP Debian
3.16.43-2+deb8u5 (2017-09-19) x86_64 GNU/Linux |
| Build tool | maven |
| Personality |
/data/hiveptest/working/yetus_PreCommit-HIVE-Build-18504/dev-support/hive-personality.sh
|
| git revision | master / 1b04924 |
| Default Java | 1.8.0_111 |
| findbugs | v3.0.0 |
| modules | C: standalone-metastore/metastore-common U:
standalone-metastore/metastore-common |
| Console output |
http://104.198.109.242/logs//PreCommit-HIVE-Build-18504/yetus.txt |
| Powered by | Apache Yetus http://yetus.apache.org |
This message was automatically generated.
> ClassCastException when initializing HiveMetaStoreClient on JDK10 or newer
> --------------------------------------------------------------------------
>
> Key: HIVE-21508
> URL: https://issues.apache.org/jira/browse/HIVE-21508
> Project: Hive
> Issue Type: Bug
> Components: Clients
> Affects Versions: 3.2.0, 2.3.4
> Reporter: Adar Dembo
> Assignee: Ana Jalba
> Priority: Major
> Fix For: 3.2.0
>
> Attachments: HIVE-21508.patch
>
>
> There's this block of code in {{HiveMetaStoreClient:resolveUris}} (called
> from the constructor) on master:
> {noformat}
> private URI metastoreUris[];
> ...
> if (MetastoreConf.getVar(conf,
> ConfVars.THRIFT_URI_SELECTION).equalsIgnoreCase("RANDOM")) {
> List uriList = Arrays.asList(metastoreUris);
> Collections.shuffle(uriList);
> metastoreUris = (URI[]) uriList.toArray();
> }
> {noformat}
> The cast to {{URI[]}} throws a {{ClassCastException}} beginning with JDK 10,
> possibly with JDK 9 as well. Note that {{THRIFT_URI_SELECTION}} defaults to
> {{RANDOM}} so this should affect anyone who creates a
> {{HiveMetaStoreClient}}. On master this can be overridden with {{SEQUENTIAL}}
> to avoid the broken case; I'm working against 2.3.4 where there's no such
> workaround.
> [Here's|https://stackoverflow.com/questions/51372788/array-cast-java-8-vs-java-9]
> a StackOverflow post that explains the issue in more detail. Interestingly,
> the author described the issue in the context of the HMS; not sure why there
> was no follow up with a Hive bug report.
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