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Michael Luckey commented on BEAM-5176: -------------------------------------- Let me first try to restate the problem. Not sure if I got that right. Issue is, if I execute e.g {noformat} ./gradlew :beam-sdks-java-core:compileJava{noformat} or use the Gradle tool window {noformat} beam -> :beam-sdks-java-core -> Tasks -> other -> compileJava{noformat} the build succeeds, whereas if I m using the idea menu {noformat} Build -> Build Module{noformat} it fails complaining about {noformat} error: warnings found and -Werror specified 1 error 89 warnings > Task :beam-sdks-java-core:compileJava FAILED {noformat} At least, that is, what I am observing. If so, that seems to be caused by Intellij adding an additional Xlint parameter to java command line, i.e. {noformat} -Xlint:deprecation -parameters -Xlint:all -Werror -XepDisableWarningsInGeneratedCode -XepExcludedPaths:(.*/)?(build/generated.*avro-java|build/generated)/.* -Xep:MutableConstantField:OFF -Xlint:-options -Xlint:-cast -Xlint:-deprecation -Xlint:-processing -Xlint:-rawtypes -Xlint:-serial -Xlint:-try -Xlint:-unchecked -Xlint:-varargs {noformat} versus {noformat} -parameters -Xlint:all -Werror -XepDisableWarningsInGeneratedCode -XepExcludedPaths:(.*/)?(build/generated.*avro-java|build/generated)/.* -Xep:MutableConstantField:OFF -Xlint:-options -Xlint:-cast -Xlint:-deprecation -Xlint:-processing -Xlint:-rawtypes -Xlint:-serial -Xlint:-try -Xlint:-unchecked -Xlint:-varargs {noformat} which obviously clashes with -Werror here. I think, that might be caused by IntelliJ hardcoding -Xlint:deprecation into Gradle task runner [1], also I am not really sure, that's the code executed when pushing this button. Anyway, inspecting compilerArgs before modifying in BeamModulePlugin [2] shows that option to be already set {noformat} [-Xlint:deprecation] {noformat} So we probably could workaround that by either changing that {noformat} options.compilerArgs += ([ {noformat} to {noformat} options.compilerArgs = ([ {noformat} or change the order and append existing options last. [1] [https://github.com/JetBrains/intellij-community/blob/182.4892/plugins/gradle/java/src/execution/build/GradleProjectTaskRunner.java#L135-L140] [2] https://github.com/apache/beam/blob/master/buildSrc/src/main/groovy/org/apache/beam/gradle/BeamModulePlugin.groovy#L557 > FailOnWarnings behave differently between CLI and Intellij build > ----------------------------------------------------------------- > > Key: BEAM-5176 > URL: https://issues.apache.org/jira/browse/BEAM-5176 > Project: Beam > Issue Type: Sub-task > Components: build-system > Reporter: Etienne Chauchot > Assignee: Kenneth Knowles > Priority: Major > > In command line the build passes but fails on the IDE because of warnings. > To make it pass I had to put false in failOnWarnings in ApplyJavaNature -- This message was sent by Atlassian JIRA (v7.6.3#76005)