David Blevins created JOHNZON-416:
-------------------------------------
Summary: Read/write fail with Map JsonbTypeAdapter on deserialized
class
Key: JOHNZON-416
URL: https://issues.apache.org/jira/browse/JOHNZON-416
Project: Johnzon
Issue Type: Bug
Components: JSON-B
Affects Versions: 2.0.1
Reporter: David Blevins
Attempting to serialize or deserialize class Email as follows
{code:java}
final String json = "\{\"user\":\"test\",\"domain\":\"domain.com\"}";
final Email email = jsonb.fromJson(json, Email.class);\{code}
fails if the adapter is declared on the Email class
{code:java}
@JsonbTypeAdapter(Adapter.EmailClass.class)
public static class Email {
final String user;
final String domain;
//... \{code}
and adapter code
{code:java}
public abstract static class Adapter implements JsonbAdapter<Email, Map<String,
Object>> {
@Override
public Map<String, Object> adaptToJson(final Email obj) {
final LinkedHashMap<String, Object> map = new LinkedHashMap<>();
map.put("user", obj.user);
map.put("domain", obj.domain);
return map;
}
@Override
public Email adaptFromJson(final Map<String, Object> map) {
return new Email(map.get("user").toString(),
map.get("domain").toString());
}
{code}
Fails with the following exception
{code}
java.lang.ClassCastException: Cannot cast
sun.reflect.generics.reflectiveObjects.ParameterizedTypeImpl to java.lang.Class
at java.base/java.lang.Class.cast(Class.java:3889)
at
org.apache.johnzon.jsonb.JsonbAccessMode.isReversedAdapter(JsonbAccessMode.java:875)
at
org.apache.johnzon.jsonb.JsonbAccessMode.findAdapter(JsonbAccessMode.java:846)
at
org.apache.johnzon.mapper.access.KnownNotOpenedJavaTypesAccessMode.findAdapter(KnownNotOpenedJavaTypesAccessMode.java:259)
at org.apache.johnzon.mapper.Mappings.createClassMapping(Mappings.java:532)
at
org.apache.johnzon.jsonb.JsonbMappings.createClassMapping(JsonbMappings.java:46)
at
org.apache.johnzon.mapper.Mappings.doFindOrCreateClassMapping(Mappings.java:455)
at
org.apache.johnzon.mapper.Mappings.findOrCreateClassMapping(Mappings.java:429)
at
org.apache.johnzon.mapper.MappingGeneratorImpl.doWriteObject(MappingGeneratorImpl.java:182)
at org.apache.johnzon.mapper.Mapper.writeObject(Mapper.java:207)
at org.apache.johnzon.mapper.Mapper.writeObjectWithGenerator(Mapper.java:192)
at org.apache.johnzon.mapper.Mapper.writeObject(Mapper.java:186)
at org.apache.johnzon.mapper.Mapper.writeObjectAsString(Mapper.java:224)
at org.apache.johnzon.jsonb.JohnzonJsonb.toJson(JohnzonJsonb.java:271)
at
org.apache.johnzon.jsonb.symmetry.adapter.map.MapAdapterOnClassDirectTest.assertWrite(MapAdapterOnClassDirectTest.java:34)
at org.apache.johnzon.jsonb.symmetry.SymmetryTest.write(SymmetryTest.java:39)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native
Method)
at
java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77)
at
java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:568)
at
org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:59)
at
org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
at
org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:56)
at
org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:26)
at org.junit.runners.ParentRunner$3.evaluate(ParentRunner.java:306)
at
org.junit.runners.BlockJUnit4ClassRunner$1.evaluate(BlockJUnit4ClassRunner.java:100)
at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:366)
at
org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:103)
at
org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:63)
at org.junit.runners.ParentRunner$4.run(ParentRunner.java:331)
at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:79)
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:329)
at org.junit.runners.ParentRunner.access$100(ParentRunner.java:66)
at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:293)
at org.junit.runners.ParentRunner$3.evaluate(ParentRunner.java:306)
at org.junit.runners.ParentRunner.run(ParentRunner.java:413)
at org.junit.runner.JUnitCore.run(JUnitCore.java:137)
at
com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:69)
at
com.intellij.rt.junit.IdeaTestRunner$Repeater$1.execute(IdeaTestRunner.java:38)
at com.intellij.rt.execution.junit.TestsRepeater.repeat(TestsRepeater.java:11)
at
com.intellij.rt.junit.IdeaTestRunner$Repeater.startRunnerWithArgs(IdeaTestRunner.java:35)
at
com.intellij.rt.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:231)
at com.intellij.rt.junit.JUnitStarter.main(JUnitStarter.java:55)
Suppressed: jakarta.json.stream.JsonGenerationException: Invalid json,
state=INITIAL
at org.apache.johnzon.core.JsonGeneratorImpl.close(JsonGeneratorImpl.java:447)
at org.apache.johnzon.mapper.Mapper.writeObject(Mapper.java:181)
... 32 more
{code}
This will work on a read and write in any order if Email is a field inside
another class.
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