# ES 6.0.1 install crashes with OpenJDK9 **URL:** \ **Category:** Elasticsearch\ **Created:** [December 8, 2017, 1:14pm UTC](https://discuss.elastic.co/t/es-6-0-1-install-crashes-with-openjdk9/110851 "2017-12-08T13:14:26Z")\ **Posts on this page:** 4\ **Page:** 1
**Author:** ![jeroen1](https://avatars.discourse-cdn.com/v4/letter/j/47e85d/32.png) [@jeroen1](https://discuss.elastic.co/u/jeroen1)\ **Post date:** [December 8, 2017, 1:14pm UTC](https://discuss.elastic.co/t/es-6-0-1-install-crashes-with-openjdk9/110851/1 "2017-12-08T13:14:26Z")
Using Ubuntu 16.04 LTS + ES 6.0.1 + OpenJDK9, simple basic config. The service crashes: ```auto [2017-12-08T14:13:40,428][ERROR][o.e.b.ElasticsearchUncaughtExceptionHandler] [test601] fatal error in thread [main], exiting java.lang.ExceptionInInitializerError: null at org.apache.lucene.analysis.miscellaneous.StemmerOverrideFilter$Builder.build(StemmerOverrideFilter.java:205) ~[lucene-analyzers-common-7.0.1.jar:7.0.1 8d6c3889aa543954424d8ac1dbb3f03bf207140b - sarowe - 2017-10-02 14:36:58] at org.apache.lucene.analysis.nl.DutchAnalyzer.(DutchAnalyzer.java:133) ~[lucene-analyzers-common-7.0.1.jar:7.0.1 8d6c3889aa543954424d8ac1dbb3f03bf207140b - sarowe - 2017-10-02 14:36:58] at org.apache.lucene.analysis.nl.DutchAnalyzer.(DutchAnalyzer.java:106) ~[lucene-analyzers-common-7.0.1.jar:7.0.1 8d6c3889aa543954424d8ac1dbb3f03bf207140b - sarowe - 2017-10-02 14:36:58] at org.elasticsearch.indices.analysis.PreBuiltAnalyzers$20.create(PreBuiltAnalyzers.java:243) ~[elasticsearch-6.0.1.jar:6.0.1] at org.elasticsearch.indices.analysis.PreBuiltAnalyzers.getAnalyzer(PreBuiltAnalyzers.java:484) ~[elasticsearch-6.0.1.jar:6.0.1] at org.elasticsearch.index.analysis.AnalysisRegistry$PrebuiltAnalysis.(AnalysisRegistry.java:410) ~[elasticsearch-6.0.1.jar:6.0.1] at org.elasticsearch.index.analysis.AnalysisRegistry$PrebuiltAnalysis.(AnalysisRegistry.java:394) ~[elasticsearch-6.0.1.jar:6.0.1] at org.elasticsearch.index.analysis.AnalysisRegistry.(AnalysisRegistry.java:84) ~[elasticsearch-6.0.1.jar:6.0.1] at org.elasticsearch.indices.analysis.AnalysisModule.(AnalysisModule.java:154) ~[elasticsearch-6.0.1.jar:6.0.1] at org.elasticsearch.node.Node.(Node.java:327) ~[elasticsearch-6.0.1.jar:6.0.1] at org.elasticsearch.node.Node.(Node.java:245) ~[elasticsearch-6.0.1.jar:6.0.1] at org.elasticsearch.bootstrap.Bootstrap$5.(Bootstrap.java:212) ~[elasticsearch-6.0.1.jar:6.0.1] at org.elasticsearch.bootstrap.Bootstrap.setup(Bootstrap.java:212) ~[elasticsearch-6.0.1.jar:6.0.1] at org.elasticsearch.bootstrap.Bootstrap.init(Bootstrap.java:322) ~[elasticsearch-6.0.1.jar:6.0.1] at org.elasticsearch.bootstrap.Elasticsearch.init(Elasticsearch.java:130) ~[elasticsearch-6.0.1.jar:6.0.1] at org.elasticsearch.bootstrap.Elasticsearch.execute(Elasticsearch.java:121) ~[elasticsearch-6.0.1.jar:6.0.1] at org.elasticsearch.cli.EnvironmentAwareCommand.execute(EnvironmentAwareCommand.java:69) ~[elasticsearch-6.0.1.jar:6.0.1] at org.elasticsearch.cli.Command.mainWithoutErrorHandling(Command.java:134) ~[elasticsearch-6.0.1.jar:6.0.1] at org.elasticsearch.cli.Command.main(Command.java:90) ~[elasticsearch-6.0.1.jar:6.0.1] at org.elasticsearch.bootstrap.Elasticsearch.main(Elasticsearch.java:92) ~[elasticsearch-6.0.1.jar:6.0.1] at org.elasticsearch.bootstrap.Elasticsearch.main(Elasticsearch.java:85) ~[elasticsearch-6.0.1.jar:6.0.1] Caused by: java.security.AccessControlException: access denied ("java.lang.RuntimePermission" "accessDeclaredMembers") at java.security.AccessControlContext.checkPermission(AccessControlContext.java:468) ~[?:?] at java.security.AccessController.checkPermission(AccessController.java:894) ~[?:?] at java.lang.SecurityManager.checkPermission(SecurityManager.java:541) ~[?:?] at java.lang.Class.checkMemberAccess(Class.java:2584) ~[?:?] at java.lang.Class.getDeclaredFields(Class.java:2092) ~[?:?] at org.apache.lucene.util.RamUsageEstimator$1.run(RamUsageEstimator.java:339) ~[lucene-core-7.0.1.jar:7.0.1 8d6c3889aa543954424d8ac1dbb3f03bf207140b - sarowe - 2017-10-02 14:36:35] at org.apache.lucene.util.RamUsageEstimator$1.run(RamUsageEstimator.java:336) ~[lucene-core-7.0.1.jar:7.0.1 8d6c3889aa543954424d8ac1dbb3f03bf207140b - sarowe - 2017-10-02 14:36:35] at java.security.AccessController.doPrivileged(Native Method) ~[?:?] at org.apache.lucene.util.RamUsageEstimator.shallowSizeOfInstance(RamUsageEstimator.java:336) ~[lucene-core-7.0.1.jar:7.0.1 8d6c3889aa543954424d8ac1dbb3f03bf207140b - sarowe - 2017-10-02 14:36:35] at org.apache.lucene.util.RamUsageEstimator.shallowSizeOf(RamUsageEstimator.java:313) ~[lucene-core-7.0.1.jar:7.0.1 8d6c3889aa543954424d8ac1dbb3f03bf207140b - sarowe - 2017-10-02 14:36:35] at org.apache.lucene.util.fst.ByteSequenceOutputs.(ByteSequenceOutputs.java:154) ~[lucene-core-7.0.1.jar:7.0.1 8d6c3889aa543954424d8ac1dbb3f03bf207140b - sarowe - 2017-10-02 14:36:35] ... 21 more ``` Is Java 9 supported nowadays with 6.x [https://dzone.com/articles/java-9-elasticsearch-benchmark](https://dzone.com/articles/java-9-elasticsearch-benchmark)? Or still good old 8 only? Please let me know if you need more info. Thanks! ---
**Author:** ![Christian\_Dahlqvist](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/christian_dahlqvist/32/4617_2.png) [@Christian\_Dahlqvist](https://discuss.elastic.co/u/Christian_Dahlqvist)\ **Post date:** [December 8, 2017, 1:19pm UTC](https://discuss.elastic.co/t/es-6-0-1-install-crashes-with-openjdk9/110851/2 "2017-12-08T13:19:20Z")
Java9 is [not supported](https://www.elastic.co/support/matrix#matrix_jvm). You need to use Java8 instead. ---
**Author:** ![jeroen1](https://avatars.discourse-cdn.com/v4/letter/j/47e85d/32.png) [@jeroen1](https://discuss.elastic.co/u/jeroen1)\ **Post date:** [December 8, 2017, 1:20pm UTC](https://discuss.elastic.co/t/es-6-0-1-install-crashes-with-openjdk9/110851/3 "2017-12-08T13:20:17Z")
Are there plans to support 9? Perhaps good to update [https://www.elastic.co/guide/en/elasticsearch/reference/current/\_installation.html](https://www.elastic.co/guide/en/elasticsearch/reference/current/_installation.html) which says "Elasticsearch requires at least Java 8.". I guess 9 is at least 8 and others might make the same mistake. ---
**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\ **Post date:** [January 5, 2018, 1:20pm UTC](https://discuss.elastic.co/t/es-6-0-1-install-crashes-with-openjdk9/110851/4 "2018-01-05T13:20:19Z")
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