NullPointerException when @JsonbTransient is applied on property without setter

[ggam]

I'm using Yasson 1.0.

Having the following mapping:

public class Foo implements Serializable {

    @JsonbTransient
    private String bar;

    public String getBar() {
        return bar;
    }
}

AnnotationIntrospector searches for a @JsonbTransient on a setBar(String) method and since it can't find it, it marks the property as "writeable":

if (transientInfo.contains(AnnotationTarget.PROPERTY)) {
    // ...

    if(!transientInfo.contains(AnnotationTarget.SETTER)){
        builder.setWriteTransient(true);
    }
}

But later on introspectCustomization it tries to do some checks on that setter method that does not exist:

if (builder.isWriteTransient()) {
    // ...
    introspector.checkTransientIncompatible(property.getSetterElement());
}

Resulting in the following stacktrace:

Caused by: java.lang.NullPointerException
	at org.eclipse.yasson.internal.AnnotationIntrospector.checkTransientIncompatible(AnnotationIntrospector.java:534)
	at org.eclipse.yasson.internal.model.PropertyModel.introspectCustomization(PropertyModel.java:159)
	at org.eclipse.yasson.internal.model.PropertyModel.<init>(PropertyModel.java:87)
	at org.eclipse.yasson.internal.model.customization.ordering.PropertyOrdering.lambda$orderProperties$0(PropertyOrdering.java:79)
	at java.util.stream.ReferencePipeline$3$1.accept(ReferencePipeline.java:193)
	at java.util.HashMap$ValueSpliterator.forEachRemaining(HashMap.java:1620)
	at java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:481)
	at java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:471)
	at java.util.stream.ReduceOps$ReduceOp.evaluateSequential(ReduceOps.java:708)
	at java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234)
	at java.util.stream.ReferencePipeline.collect(ReferencePipeline.java:499)
	at org.eclipse.yasson.internal.model.customization.ordering.PropertyOrdering.orderProperties(PropertyOrdering.java:80)
	at org.eclipse.yasson.internal.ClassParser.parseProperties(ClassParser.java:60)
	at org.eclipse.yasson.internal.MappingContext$ParseClassModelFunction.apply(MappingContext.java:56)
	at org.eclipse.yasson.internal.MappingContext$ParseClassModelFunction.apply(MappingContext.java:37)
	at java.util.concurrent.ConcurrentHashMap.computeIfAbsent(ConcurrentHashMap.java:1660)
	at org.eclipse.yasson.internal.MappingContext.getOrCreateClassModel(MappingContext.java:100)
	at org.eclipse.yasson.internal.serializer.ObjectSerializer.serializeInternal(ObjectSerializer.java:57)
	at org.eclipse.yasson.internal.serializer.AbstractContainerSerializer.serialize(AbstractContainerSerializer.java:60)
	at org.eclipse.yasson.internal.serializer.AbstractContainerSerializer.serializerCaptor(AbstractContainerSerializer.java:91)
	at org.eclipse.yasson.internal.serializer.CollectionSerializer.serializeInternal(CollectionSerializer.java:79)
	at org.eclipse.yasson.internal.serializer.CollectionSerializer.serializeInternal(CollectionSerializer.java:35)
	at org.eclipse.yasson.internal.serializer.AbstractContainerSerializer.serialize(AbstractContainerSerializer.java:60)
	at org.eclipse.yasson.internal.Marshaller.serializeRoot(Marshaller.java:118)
	at org.eclipse.yasson.internal.Marshaller.marshall(Marshaller.java:76)
	at org.eclipse.yasson.internal.JsonBinding.toJson(JsonBinding.java:98)
	at xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx.writeTo(BaseJsonbJaxrsProvider.java:57)
	at xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx.writeTo$$super(Unknown Source)
	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:498)
	at org.jboss.weld.interceptor.proxy.TerminalAroundInvokeInvocationContext.proceedInternal(TerminalAroundInvokeInvocationContext.java:49)
	at org.jboss.weld.interceptor.proxy.AroundInvokeInvocationContext.proceed(AroundInvokeInvocationContext.java:77)
	at org.jboss.weld.probe.InvocationMonitor$InterceptorAction.proceed(InvocationMonitor.java:198)
	at org.jboss.weld.probe.InvocationMonitor$InterceptorAction.proceed(InvocationMonitor.java:194)
	at org.jboss.weld.probe.InvocationMonitor$Action.perform(InvocationMonitor.java:173)
	at org.jboss.weld.probe.InvocationMonitor.monitor(InvocationMonitor.java:139)
	at sun.reflect.GeneratedMethodAccessor23.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:498)
	at org.jboss.weld.interceptor.reader.SimpleInterceptorInvocation$SimpleMethodInvocation.invoke(SimpleInterceptorInvocation.java:73)
	at org.jboss.weld.interceptor.proxy.InterceptorMethodHandler.executeAroundInvoke(InterceptorMethodHandler.java:84)
	at org.jboss.weld.interceptor.proxy.InterceptorMethodHandler.executeInterception(InterceptorMethodHandler.java:72)
	at org.jboss.weld.interceptor.proxy.InterceptorMethodHandler.invoke(InterceptorMethodHandler.java:56)
	at org.jboss.weld.bean.proxy.CombinedInterceptorAndDecoratorStackMethodHandler.invoke(CombinedInterceptorAndDecoratorStackMethodHandler.java:79)
	at org.jboss.weld.bean.proxy.CombinedInterceptorAndDecoratorStackMethodHandler.invoke(CombinedInterceptorAndDecoratorStackMethodHandler.java:68)
	at xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx.writeTo(Unknown Source)
	at org.jboss.resteasy.core.interception.AbstractWriterInterceptorContext.writeTo(AbstractWriterInterceptorContext.java:131)
	at org.jboss.resteasy.core.interception.ServerWriterInterceptorContext.writeTo(ServerWriterInterceptorContext.java:60)
	at org.jboss.resteasy.core.interception.AbstractWriterInterceptorContext.proceed(AbstractWriterInterceptorContext.java:120)
	at org.jboss.resteasy.security.doseta.DigitalSigningInterceptor.aroundWriteTo(DigitalSigningInterceptor.java:145)
	at org.jboss.resteasy.core.interception.AbstractWriterInterceptorContext.proceed(AbstractWriterInterceptorContext.java:124)
	at org.jboss.resteasy.plugins.interceptors.encoding.GZIPEncodingInterceptor.aroundWriteTo(GZIPEncodingInterceptor.java:100)
	at org.jboss.resteasy.core.interception.AbstractWriterInterceptorContext.proceed(AbstractWriterInterceptorContext.java:124)
	at org.jboss.resteasy.core.ServerResponseWriter.writeNomapResponse(ServerResponseWriter.java:98)
	at org.jboss.resteasy.core.SynchronousDispatcher.writeResponse(SynchronousDispatcher.java:473)
	... 62 more

Workaround for now is just annotate the getter.

[m0mus]

I confirm that this issue exists. Roman, please take a look.

[m0mus]

Fixed.

[ggam]

Thanks Dmitry! El mié., 30 de agosto de 2017 20:41, Dmitry Kornilov < notifications@github.com> escribió:

…

Fixed. — You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub <#34 (comment)>, or mute the thread <https://github.com/notifications/unsubscribe-auth/ACAucCpjFbZcWurXQEsVPjxT2rnP7C5Pks5sdazKgaJpZM4OyKsE> .

[priyal85]

Hi Dmitry,
I'm too facing the same issue when using Jersey which internally uses yasson for JSON bindings. In which version the fix is available. I'm still getting the issue in 1.0 which is released on June 2017.

[m0mus]

Hi, This issue is fixed and will be shipped in the next Yasson release (1.0.1). We are working on this release now and it will be available to public next week. Thanks, Dmitry

…

On 5 Oct 2017, at 15:47, priyal85 ***@***.***> wrote: Hi Dmitry, I'm too facing the same issue when using Jersey which internally uses yasson for JSON bindings. In which version the fix is available. I'm still getting the issue in 1.0 which is released on June 2017. — You are receiving this because you modified the open/close state. Reply to this email directly, view it on GitHub <#34 (comment)>, or mute the thread <https://github.com/notifications/unsubscribe-auth/AI6RHWJSa4yPAu5uL9B_04UL-lu-VloGks5spN38gaJpZM4OyKsE>.

[bshannon]

This bug was not completely fixed. Here's a simple test case that still fails:

import javax.json.bind.annotation.JsonbTransient;
import javax.json.bind.*;

public class Test {

    //@JsonbTransient
    //private String    binString;

    @JsonbTransient
    public String getBinString() {
        return "";
    }

    public static void main(String argv[]) throws Exception {
        Jsonb jsonb = JsonbBuilder.create();
        Test t = new Test();
        String result = jsonb.toJson(t);
        System.out.println(result);
    }
}

If you uncomment the field declaration, it works.