# Gradle Build failing with Java 11 **URL:** \ **Category:** Elasticsearch\ **Created:** [October 3, 2020, 6:51am UTC](https://discuss.elastic.co/t/gradle-build-failing-with-java-11/250862 "2020-10-03T06:51:59Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![afeesps](https://avatars.discourse-cdn.com/v4/letter/a/a9adbd/32.png) [@afeesps](https://discuss.elastic.co/u/afeesps)\ **Post date:** [October 3, 2020, 6:52am UTC](https://discuss.elastic.co/t/gradle-build-failing-with-java-11/250862/1 "2020-10-03T06:52:00Z")
Getting an Exception like this while compiling with Gradle ./gradlew :distribution:archives:windows-zip:assemble ```auto **Execution failed for task ':x-pack:plugin:moni** **> java.lang.AssertionError: isSubtype UNKNOWN** ``` OS : windows 7 Java : 11 Gradle : 6.6.1 ---
**Author:** ![spinscale](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/spinscale/32/25011_2.png) [@spinscale](https://discuss.elastic.co/u/spinscale)\ **Post date:** [October 5, 2020, 9:06am UTC](https://discuss.elastic.co/t/gradle-build-failing-with-java-11/250862/2 "2020-10-05T09:06:23Z")
Please share the full build output, including a full exception. Also please share some information what branch you are trying to build. That said, you should get a detailed error message regarding the java version, as building Elasticsearch (compared to runnig) usually requires one of the latest java versions. ---
**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\ **Post date:** [November 2, 2020, 9:06am UTC](https://discuss.elastic.co/t/gradle-build-failing-with-java-11/250862/3 "2020-11-02T09:06:25Z")
Closed on November 2, 2020, 9:06am UTC This topic was automatically closed 28 days after the last reply. New replies are no longer allowed.