Also you could check if Java11 profile in Maven was (de)activated for some
reason.
On Mon, Sep 28, 2020 at 3:29 PM Piotr Nowojski <pnowoj...@apache.org> wrote:
> 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
>>
>
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