public class ReproducerPojo {

   @ProtoField(number = 1, collectionImplementation = SmallIntSet.class)
   IntSet segments;

   @ProtoFactory
   ReproducerPojo(IntSet segments) {
      this.segments = segments;
   }
}

[ERROR] @AutoProtoSchemaBuilder processor threw a fatal exception: java.lang.IllegalStateException: Not a repeatable field
  	at org.infinispan.protostream.annotations.impl.processor.types.MirrorClassFactory$MirrorField.determineRepeatedElementType(MirrorClassFactory.java:1199)
  	at org.infinispan.protostream.annotations.impl.ProtoMessageTypeMetadata.discoverFields(ProtoMessageTypeMetadata.java:336)
  	at org.infinispan.protostream.annotations.impl.ProtoMessageTypeMetadata.scanMemberAnnotations(ProtoMessageTypeMetadata.java:178)
  	at org.infinispan.protostream.annotations.impl.BaseProtoSchemaGenerator.generateAndRegister(BaseProtoSchemaGenerator.java:116)
  	at org.infinispan.protostream.annotations.impl.processor.AutoProtoSchemaBuilderAnnotationProcessor.processClass(AutoProtoSchemaBuilderAnnotationProcessor.java:320)
  	at org.infinispan.protostream.annotations.impl.processor.AutoProtoSchemaBuilderAnnotationProcessor.processElement(AutoProtoSchemaBuilderAnnotationProcessor.java:251)
  	at org.infinispan.protostream.annotations.impl.processor.AutoProtoSchemaBuilderAnnotationProcessor.process(AutoProtoSchemaBuilderAnnotationProcessor.java:178)
  	at jdk.compiler/com.sun.tools.javac.processing.JavacProcessingEnvironment.callProcessor(JavacProcessingEnvironment.java:980)
  	at jdk.compiler/com.sun.tools.javac.processing.JavacProcessingEnvironment.discoverAndRunProcs(JavacProcessingEnvironment.java:896)
  	at jdk.compiler/com.sun.tools.javac.processing.JavacProcessingEnvironment$Round.run(JavacProcessingEnvironment.java:1222)
  	at jdk.compiler/com.sun.tools.javac.processing.JavacProcessingEnvironment.doProcessing(JavacProcessingEnvironment.java:1334)
  	at jdk.compiler/com.sun.tools.javac.main.JavaCompiler.processAnnotations(JavaCompiler.java:1258)
  	at jdk.compiler/com.sun.tools.javac.main.JavaCompiler.compile(JavaCompiler.java:936)
  	at jdk.compiler/com.sun.tools.javac.api.JavacTaskImpl.lambda$doCall$0(JavacTaskImpl.java:104)
  	at jdk.compiler/com.sun.tools.javac.api.JavacTaskImpl.handleExceptions(JavacTaskImpl.java:147)
  	at jdk.compiler/com.sun.tools.javac.api.JavacTaskImpl.doCall(JavacTaskImpl.java:100)
  	at jdk.compiler/com.sun.tools.javac.api.JavacTaskImpl.call(JavacTaskImpl.java:94)
  	at org.codehaus.plexus.compiler.javac.JavaxToolsCompiler.compileInProcess(JavaxToolsCompiler.java:126)
  	at org.codehaus.plexus.compiler.javac.JavacCompiler.performCompile(JavacCompiler.java:174)
  	at org.apache.maven.plugin.compiler.AbstractCompilerMojo.execute(AbstractCompilerMojo.java:1134)
  	at org.apache.maven.plugin.compiler.CompilerMojo.execute(CompilerMojo.java:187)
  	at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:137)
  	at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:210)
  	at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:156)
  	at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:148)
  	at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:117)
  	at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:81)
  	at org.apache.maven.lifecycle.internal.builder.singlethreaded.SingleThreadedBuilder.build(SingleThreadedBuilder.java:56)
  	at org.apache.maven.lifecycle.internal.LifecycleStarter.execute(LifecycleStarter.java:128)
  	at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:305)
  	at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:192)
  	at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:105)
  	at org.apache.maven.cli.MavenCli.execute(MavenCli.java:956)
  	at org.apache.maven.cli.MavenCli.doMain(MavenCli.java:288)
  	at org.apache.maven.cli.MavenCli.main(MavenCli.java:192)
  	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
  	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
  	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
  	at java.base/java.lang.reflect.Method.invoke(Method.java:566)
  	at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced(Launcher.java:282)
  	at org.codehaus.plexus.classworlds.launcher.Launcher.launch(Launcher.java:225)
  	at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode(Launcher.java:406)
  	at org.codehaus.plexus.classworlds.launcher.Launcher.main(Launcher.java:347)