Kotlin Querydsl: cannot find javax.annotation.proceesing.Generated - spring-boot

Question

I am following this example https://felixzett.com/articles/minimal-maven-kotlin-querydsl-example/ to implement querydsl in a Springboot Kotlin Maven project. Using the pom mentioned, I managed to generate the q classes after running mvn compile and can run mvn clean install successfully as well, but when I try to run the project locally, I get error in all the q classes.
java: cannot find symbol
symbol: class Generated
location: package javax.annotation.processing
I tried adding javax.annotation-api to the <annotationProcessPaths> element but it didn't work.
<annotationProcessorPath>
<groupId>javax.annotation</groupId>
<artifactId>javax.annotation-api</artifactId>
<version>1.3.2</version>
</annotationProcessorPath>
I also tried adding it as a dependency, within that <plugin> element or in the main <dependencies> element, but these didn't work as well.
<dependency>
<groupId>javax.annotation</groupId>
<artifactId>javax.annotation-api</artifactId>
<version>1.3.2</version>
</dependency>
May I know if anyone has any idea how to solve this?
Update:
I have both kotlin-maven-plugin and maven-compiler-plugin in my pom. I realise if I comment out the maven-compiler-plugin then the error is gone. But I am not sure if other parts of the app will be affected if it doesn't have this plugin.
Does anyone know if it is ok to just have the kotlin-maven-plugin, or how I should modify maven-compiler-plugin for the 2 plugins to work together?
<plugin>
<groupId>org.jetbrains.kotlin</groupId>
<artifactId>kotlin-maven-plugin</artifactId>
<version>${kotlin.version}</version>
<executions>
<execution>
<id>compile</id>
<phase>process-sources</phase>
<goals>
<goal>compile</goal>
</goals>
</execution>
<execution>
<id>kapt</id>
<phase>generate-sources</phase>
<goals>
<goal>kapt</goal>
</goals>
<configuration>
<sourceDirs>
<sourceDir>src/main/kotlin</sourceDir>
</sourceDirs>
<annotationProcessorPaths>
<annotationProcessorPath>
<groupId>com.querydsl</groupId>
<artifactId>querydsl-apt</artifactId>
<version>${querydsl.version}</version>
<classifier>jpa</classifier>
</annotationProcessorPath>
</annotationProcessorPaths>
</configuration>
</execution>
<execution>
<id>test-compile</id>
<phase>test-compile</phase>
<goals>
<goal>test-compile</goal>
</goals>
<configuration>
<sourceDirs>
<sourceDir>src/test/kotlin</sourceDir>
<sourceDir>target/generated-sources/kapt/test</sourceDir>
</sourceDirs>
</configuration>
</execution>
</executions>
<configuration>
<args>
<arg>-Xjsr305=strict</arg>
</args>
<compilerPlugins>
<plugin>spring</plugin>
<plugin>jpa</plugin>
<plugin>all-open</plugin>
</compilerPlugins>
<pluginOptions>
<option>all-open:annotation=javax.persistence.Entity</option>
<option>all-open:annotation=javax.persistence.MappedSuperclass</option>
<option>all-open:annotation=javax.persistence.Embeddable</option>
</pluginOptions>
<jvmTarget>1.8</jvmTarget>
</configuration>
<dependencies>
<dependency>
<groupId>org.jetbrains.kotlin</groupId>
<artifactId>kotlin-maven-allopen</artifactId>
<version>${kotlin.version}</version>
</dependency>
<dependency>
<groupId>org.jetbrains.kotlin</groupId>
<artifactId>kotlin-maven-noarg</artifactId>
<version>${kotlin.version}</version>
</dependency>
</dependencies>
</plugin>
<plugin>
<artifactId>maven-compiler-plugin</artifactId>
<groupId>org.apache.maven.plugins</groupId>
<version>3.5.1</version>
<configuration>
<source>1.8</source>
<target>1.8</target>
</configuration>
<executions>
<execution>
<id>default-compile</id>
<phase>none</phase>
</execution>
<execution>
<id>default-testCompile</id>
<phase>none</phase>
</execution>
<execution>
<id>java-compile</id>
<phase>process-sources</phase>
<goals>
<goal>compile</goal>
</goals>
</execution>
<execution>
<id>java-test-compile</id>
<phase>test-compile</phase>
<goals>
<goal>testCompile</goal>
</goals>
</execution>
</executions>
</plugin>

Answer 1

It seems like it is due to the Java version in the maven-compiler-plugin. After I changed it from 1.8 to 11, I do not get the error even if I have both kotlin-maven-plugin and maven-compiler-plugin.
<configuration>
<source>1.8</source>
<target>1.8</target>
</configuration>
Also change the java version to 11 in the <properties> element.
<properties>
<java.version>11</java.version>
</properties>