Build failed with Kotlin: multiple getters

[BugMaker]

My build.gradle.kts:

import org.jetbrains.kotlin.gradle.tasks.KotlinCompile

plugins {
	id("org.springframework.boot") version "2.6.2"
	id("io.spring.dependency-management") version "1.0.11.RELEASE"
	id("org.unbroken-dome.xjc") version "1.4.1" // https://github.com/unbroken-dome/gradle-xjc-plugin
	war
	kotlin("jvm") version "1.6.10"
	kotlin("plugin.spring") version "1.6.10"
}

group = "com.bftcom.gosmail.terminal"
version = "0.0.1-SNAPSHOT"
java.sourceCompatibility = JavaVersion.VERSION_1_8

repositories {
	mavenCentral()
}

dependencies {
	implementation("org.springframework.boot:spring-boot-starter-web")
	implementation("com.fasterxml.jackson.module:jackson-module-kotlin")
	implementation("org.jetbrains.kotlin:kotlin-reflect")
	implementation("org.jetbrains.kotlin:kotlin-stdlib-jdk8")
	providedRuntime("org.springframework.boot:spring-boot-starter-tomcat")
	testImplementation("org.springframework.boot:spring-boot-starter-test")

	xjcClasspath("info.hubbitus:xjc-documentation-annotation-plugin:1.1")
}

tasks.withType<KotlinCompile> {
	kotlinOptions {
		freeCompilerArgs = listOf("-Xjsr305=strict")
		jvmTarget = "1.8"
	}
}

tasks.withType<Test> {
	useJUnitPlatform()
}
tasks {
	// Results by default in `build/xjc/generated-sources`
	xjcGenerate {
		source = fileTree(mapOf("dir" to "src/main/resources/static/xsd", "include" to listOf("*.xsd")))
		packageLevelAnnotations = false
		targetPackage = "info.hubbitus.xjc.plugin.example"
		extraArgs = listOf("-XPluginDescriptionAnnotation")
	}
}

Error log:

gradlew xjcgenerate
> Task :xjcGenerate FAILED

FAILURE: Build failed with an exception.

* What went wrong:
Some problems were found with the configuration of task ':xjcGenerate' (type 'XjcGenerate').
  - In plugin 'org.unbroken-dome.xjc' type 'org.unbrokendome.gradle.plugins.xjc.XjcGenerate' property 'contentForWildcard' has redundant getters: 'getContentForWildcard()' and 'isContentForWildcard()'.      

    Reason: Boolean property 'contentForWildcard' has both an `is` and a `get` getter.

    Possible solutions:
      1. Remove one of the getters.
      2. Annotate one of the getters with @Internal.

    Please refer to https://docs.gradle.org/7.3.2/userguide/validation_problems.html#redundant_getters for more details about this problem.
  - In plugin 'org.unbroken-dome.xjc' type 'org.unbrokendome.gradle.plugins.xjc.XjcGenerate' property 'enableIntrospection' has redundant getters: 'getEnableIntrospection()' and 'isEnableIntrospection()'.   

    Reason: Boolean property 'enableIntrospection' has both an `is` and a `get` getter.

    Possible solutions:
      1. Remove one of the getters.
      2. Annotate one of the getters with @Internal.

    Please refer to https://docs.gradle.org/7.3.2/userguide/validation_problems.html#redundant_getters for more details about this problem.
  - In plugin 'org.unbroken-dome.xjc' type 'org.unbrokendome.gradle.plugins.xjc.XjcGenerate' property 'extension' has redundant getters: 'getExtension()' and 'isExtension()'.

    Reason: Boolean property 'extension' has both an `is` and a `get` getter.

    Possible solutions:
      1. Remove one of the getters.
      2. Annotate one of the getters with @Internal.

    Please refer to https://docs.gradle.org/7.3.2/userguide/validation_problems.html#redundant_getters for more details about this problem.
  - In plugin 'org.unbroken-dome.xjc' type 'org.unbrokendome.gradle.plugins.xjc.XjcGenerate' property 'noFileHeader' has redundant getters: 'getNoFileHeader()' and 'isNoFileHeader()'.

    Reason: Boolean property 'noFileHeader' has both an `is` and a `get` getter.

    Possible solutions:
      1. Remove one of the getters.
      2. Annotate one of the getters with @Internal.

    Please refer to https://docs.gradle.org/7.3.2/userguide/validation_problems.html#redundant_getters for more details about this problem.
  - In plugin 'org.unbroken-dome.xjc' type 'org.unbrokendome.gradle.plugins.xjc.XjcGenerate' property 'packageLevelAnnotations' has redundant getters: 'getPackageLevelAnnotations()' and 'isPackageLevelAnnota
tions()'.

    Reason: Boolean property 'packageLevelAnnotations' has both an `is` and a `get` getter.

    Possible solutions:
      1. Remove one of the getters.
      2. Annotate one of the getters with @Internal.

    Please refer to https://docs.gradle.org/7.3.2/userguide/validation_problems.html#redundant_getters for more details about this problem.