Hi,
It sounds more like an Intellij issue, not a Flink issue. But have you
checked your configured target language level for your modules?
Best regards,
Piotrek
pon., 28 wrz 2020 o 10:57 Lu Weizheng <luweizhen...@hotmail.com> napisał(a):
> Hi all,
>
> I recently upgraded Intellij IEDA from 2019 to 2020.2 Community Edition. I
> didn’t do anything to Maven.
> My code could compile correctly before. But now I get the following error:
>
> Static methods in interface require -target:jvm-1.8
>
> Probably because I use new WatermarkStrategy Scala API:
>
> .assignTimestampsAndWatermarks(
> WatermarkStrategy
> .forBoundedOutOfOrderness(Duration.ofSeconds(1))
> .withTimestampAssigner(new SerializableTimestampAssigner[(String,
> Long, Int)] {
> override def extractTimestamp(t: (String, Long,
> Int), l: Long): Long = t._2
> })
> )
>
> My project have both java and scala code. Here’s my POM.xml file:
>
> <!-- Scala Compiler -->
> <plugin>
> <groupId>net.alchim31.maven</groupId>
> <artifactId>scala-maven-plugin</artifactId>
> <!-- <version>3.2.2</version>-->
> <executions>
> <execution>
> <id>scala-compile-first</id>
> <phase>process-resources</phase>
> <goals>
> <goal>compile</goal>
> </goals>
> </execution>
> </executions>
> <!-- <executions>-->
> <!-- <execution>-->
> <!-- <goals>-->
> <!-- <goal>compile</goal>-->
> <!-- <goal>testCompile</goal>-->
> <!-- </goals>-->
> <!-- </execution>-->
> <!-- </executions>-->
> </plugin>
>
> Is there something I need to add to my POM file?
>
>
>
>
> Best Regards,
> Weizheng Lu
>
