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https://issues.apache.org/jira/browse/BEAM-10632?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17171838#comment-17171838
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Brian Hulette commented on BEAM-10632:
--------------------------------------
The JDK bug I linked before says "When an annotation is put on a member but the
annotation type is missing on the class path, the specification requires the
runtime to ignore this annotation, i.e. to act as if the annotation is not
present."
So it looks like the behavior I observed where the @Nullable is ignored is
intended behavior. I think the NPE case is due to some additional annotation
added when checker framework runs. The NPE occurs in a module that runs checker
framework even if there aren't any @Nullable fields.
> checkerframework @Nullable annotation causes NPE when used with Schema
> Inference
> --------------------------------------------------------------------------------
>
> Key: BEAM-10632
> URL: https://issues.apache.org/jira/browse/BEAM-10632
> Project: Beam
> Issue Type: Improvement
> Components: sdk-java-core
> Reporter: Brian Hulette
> Priority: P2
>
> {code:java}
> Caused by: java.lang.NullPointerException
> at
> sun.reflect.annotation.TypeAnnotationParser.mapTypeAnnotations(TypeAnnotationParser.java:356)
> at
> sun.reflect.annotation.AnnotatedTypeFactory$AnnotatedTypeBaseImpl.<init>(AnnotatedTypeFactory.java:139)
> at
> sun.reflect.annotation.AnnotatedTypeFactory.buildAnnotatedType(AnnotatedTypeFactory.java:65)
> at
> sun.reflect.annotation.TypeAnnotationParser.buildAnnotatedType(TypeAnnotationParser.java:79)
> at
> java.lang.reflect.Executable.getAnnotatedReturnType0(Executable.java:633)
> at java.lang.reflect.Method.getAnnotatedReturnType(Method.java:648)
> at
> org.apache.beam.sdk.schemas.FieldValueTypeInformation.hasNullableReturnType(FieldValueTypeInformation.java:173)
> at
> org.apache.beam.sdk.schemas.FieldValueTypeInformation.forGetter(FieldValueTypeInformation.java:132)
> at
> java.util.stream.ReferencePipeline$3$1.accept(ReferencePipeline.java:193)
> at
> java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:175)
> at
> java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:175)
> at
> java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:175)
> at
> java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:175)
> at
> java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:175)
> at
> java.util.ArrayList$ArrayListSpliterator.forEachRemaining(ArrayList.java:1383)
> at java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:481)
> at
> java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:471)
> at
> java.util.stream.ReduceOps$ReduceOp.evaluateSequential(ReduceOps.java:708)
> at java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234)
> at
> java.util.stream.ReferencePipeline.collect(ReferencePipeline.java:499)
> at
> org.apache.beam.sdk.schemas.AutoValueSchema$AbstractGetterTypeSupplier.get(AutoValueSchema.java:62)
> at
> org.apache.beam.sdk.schemas.utils.StaticSchemaInference.schemaFromClass(StaticSchemaInference.java:88)
> at
> org.apache.beam.sdk.schemas.utils.JavaBeanUtils.schemaFromJavaBeanClass(JavaBeanUtils.java:65)
> at
> org.apache.beam.sdk.schemas.AutoValueSchema.schemaFor(AutoValueSchema.java:117)
> at
> org.apache.beam.sdk.schemas.annotations.DefaultSchema$DefaultSchemaProvider.schemaFor(DefaultSchema.java:130)
> {code}
> CC: [~kenn] [~reuvenlax]
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