Zack Kobza created AVRO-1851:
--------------------------------
Summary: Serialization of anonymous enum fails with nullable union
Key: AVRO-1851
URL: https://issues.apache.org/jira/browse/AVRO-1851
Project: Avro
Issue Type: Bug
Components: java
Affects Versions: 1.7.7
Reporter: Zack Kobza
Priority: Minor
Error received when serializing an object containing a nullable anonymous enum:
{noformat}
org.apache.avro.SchemaParseException: Empty name
at org.apache.avro.Schema.validateName(Schema.java:1108)
at org.apache.avro.Schema.access$200(Schema.java:80)
at org.apache.avro.Schema$Name.<init>(Schema.java:468)
at org.apache.avro.Schema.createRecord(Schema.java:151)
at
org.apache.avro.reflect.ReflectData.createSchema(ReflectData.java:466)
at
org.apache.avro.specific.SpecificData.getSchema(SpecificData.java:189)
at org.apache.avro.reflect.ReflectData.isRecord(ReflectData.java:168)
at
org.apache.avro.generic.GenericData.getSchemaName(GenericData.java:613)
at
org.apache.avro.specific.SpecificData.getSchemaName(SpecificData.java:265)
at
org.apache.avro.generic.GenericData.resolveUnion(GenericData.java:602)
at
org.apache.avro.generic.GenericDatumWriter.resolveUnion(GenericDatumWriter.java:151)
at
org.apache.avro.generic.GenericDatumWriter.write(GenericDatumWriter.java:71)
at
org.apache.avro.reflect.ReflectDatumWriter.write(ReflectDatumWriter.java:143)
at
org.apache.avro.generic.GenericDatumWriter.writeField(GenericDatumWriter.java:114)
at
org.apache.avro.reflect.ReflectDatumWriter.writeField(ReflectDatumWriter.java:175)
at
org.apache.avro.generic.GenericDatumWriter.writeRecord(GenericDatumWriter.java:104)
at
org.apache.avro.generic.GenericDatumWriter.write(GenericDatumWriter.java:66)
at
org.apache.avro.reflect.ReflectDatumWriter.write(ReflectDatumWriter.java:143)
at
org.apache.avro.generic.GenericDatumWriter.write(GenericDatumWriter.java:58)
at
org.apache.avro.reflect.TestReflectDatumReader.serializeWithReflectDatumWriter(TestReflectDatumReader.java:45)
at
org.apache.avro.reflect.TestReflectDatumReader.testWrite_AnonymousEnum(TestReflectDatumReader.java:53)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:497)
at
org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:45)
at
org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15)
at
org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:42)
at
org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:20)
at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:263)
at
org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:68)
at
org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:47)
at org.junit.runners.ParentRunner$3.run(ParentRunner.java:231)
at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:60)
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:229)
at org.junit.runners.ParentRunner.access$000(ParentRunner.java:50)
at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:222)
at org.junit.runners.ParentRunner.run(ParentRunner.java:300)
at org.junit.runner.JUnitCore.run(JUnitCore.java:157)
at
com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:117)
at
com.intellij.rt.execution.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:234)
at
com.intellij.rt.execution.junit.JUnitStarter.main(JUnitStarter.java:74)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:497)
at com.intellij.rt.execution.application.AppMain.main(AppMain.java:144)
{noformat}
Here is a unit test derived from TestReflectDatumReader to reproduce:
{code}
@Test
public void testWrite_AnonymousEnum() throws IOException {
byte[] serializedBytes =
serializeWithReflectDatumWriter(new MyObject(AnonymousEnum.A),
MyObject.class, AllowNull.get());
assertNotNull(serializedBytes);
}
enum AnonymousEnum {
A {
@Override
public String doSomething() {
return "A is doing something";
}
};
public abstract String doSomething();
}
public static class MyObject {
private final AnonymousEnum ae;
public MyObject(AnonymousEnum ae) {
this.ae = ae;
}
}
{code}
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