[ https://issues.apache.org/jira/browse/FLINK-5070?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Greg Hogan updated FLINK-5070: ------------------------------ Fix Version/s: 1.4.0 1.3.0 > Unable to use Scala's BeanProperty with classes > ----------------------------------------------- > > Key: FLINK-5070 > URL: https://issues.apache.org/jira/browse/FLINK-5070 > Project: Flink > Issue Type: Bug > Components: Core, Scala API, Type Serialization System > Affects Versions: 1.1.3 > Reporter: Jakub Nowacki > Assignee: Timo Walther > Fix For: 1.3.0, 1.4.0 > > > When using Scala class with with property (both var and val) annotated as > BeanProperty, throws an exception {{java.lang.IllegalStateException: Detected > more than one getter}}. > The simple code which follows throws that exception: > {code:java} > class SomeClass(@BeanProperty var prop: Int) > object SampleBeanProperty { > def main(args: Array[String]): Unit = { > val env = StreamExecutionEnvironment.createLocalEnvironment() > // Create a DataSet from a list of elements > env.fromElements(1,2) > .map(new SomeClass(_)) > .print > env.execute() > } > } > {code} > Full exception: > {code} > Exception in thread "main" java.lang.IllegalStateException: Detected more > than one setter > at > org.apache.flink.api.java.typeutils.TypeExtractor.isValidPojoField(TypeExtractor.java:1646) > at > org.apache.flink.api.java.typeutils.TypeExtractor.analyzePojo(TypeExtractor.java:1692) > at > org.apache.flink.api.java.typeutils.TypeExtractor.privateGetForClass(TypeExtractor.java:1580) > at > org.apache.flink.api.java.typeutils.TypeExtractor.privateGetForClass(TypeExtractor.java:1479) > at > org.apache.flink.api.java.typeutils.TypeExtractor.createTypeInfoWithTypeHierarchy(TypeExtractor.java:737) > at > org.apache.flink.api.java.typeutils.TypeExtractor.privateCreateTypeInfo(TypeExtractor.java:543) > at > org.apache.flink.api.java.typeutils.TypeExtractor.createTypeInfo(TypeExtractor.java:497) > at > org.apache.flink.api.java.typeutils.TypeExtractor.createTypeInfo(TypeExtractor.java:493) > at SampleBeanProperty$.main(SampleBeanProperty.scala:18) > at SampleBeanProperty.main(SampleBeanProperty.scala) > at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) > at > sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) > at > sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) > at java.lang.reflect.Method.invoke(Method.java:498) > at com.intellij.rt.execution.application.AppMain.main(AppMain.java:147) > {code} > If the class is changed into case class, code with BeanProperty works fine. -- This message was sent by Atlassian JIRA (v6.3.15#6346)