Leaking of jackson-databind dependency from vaadin-charts - any thoughts on

Flow
1

Hi All,

I’ve been evaluating the vaadin-charts components in my project (these work great btw.) when I hit an issue with the a"jackson-databind" dependency version mismatches. It would seem that the charts include this version:

com.fasterxml.jackson.core jackson-databind 2.5.2

In our project we use some other components such Apache Spark which requires this version to be “2.6.7.1”. If I run the Vaadin charts with this version I get:

java.lang.NoClassDefFoundError: com/fasterxml/jackson/annotation/JsonProperty$Access
at com.fasterxml.jackson.databind.introspect.POJOPropertyBuilder.findAccess(POJOPropertyBuilder.java:542)
at com.fasterxml.jackson.databind.introspect.POJOPropertyBuilder.removeNonVisible(POJOPropertyBuilder.java:623)
at com.fasterxml.jackson.databind.introspect.POJOPropertiesCollector._removeUnwantedAccessor(POJOPropertiesCollector.java:697)
at com.fasterxml.jackson.databind.introspect.POJOPropertiesCollector.collectAll(POJOPropertiesCollector.java:298)
at com.fasterxml.jackson.databind.introspect.POJOPropertiesCollector.getJsonValueMethod(POJOPropertiesCollector.java:169)
at com.fasterxml.jackson.databind.introspect.BasicBeanDescription.findJsonValueMethod(BasicBeanDescription.java:223)
at com.fasterxml.jackson.databind.ser.BasicSerializerFactory.findSerializerByAnnotations(BasicSerializerFactory.java:348)
at com.fasterxml.jackson.databind.ser.BeanSerializerFactory._createSerializer2(BeanSerializerFactory.java:210)
at com.fasterxml.jackson.databind.ser.BeanSerializerFactory.createSerializer(BeanSerializerFactory.java:153)
at com.fasterxml.jackson.databind.SerializerProvider._createUntypedSerializer(SerializerProvider.java:1203)
at com.fasterxml.jackson.databind.SerializerProvider._createAndCacheUntypedSerializer(SerializerProvider.java:1157)
at com.fasterxml.jackson.databind.SerializerProvider.findValueSerializer(SerializerProvider.java:481)
at com.fasterxml.jackson.databind.SerializerProvider.findTypedValueSerializer(SerializerProvider.java:679)
at com.fasterxml.jackson.databind.ser.DefaultSerializerProvider.serializeValue(DefaultSerializerProvider.java:107)
at com.fasterxml.jackson.databind.ObjectWriter$Prefetch.serialize(ObjectWriter.java:1387)
at com.fasterxml.jackson.databind.ObjectWriter._configAndWriteValue(ObjectWriter.java:1088)
at com.fasterxml.jackson.databind.ObjectWriter.writeValueAsString(ObjectWriter.java:960)
at com.vaadin.addon.charts.util.ChartSerialization.toJSON(ChartSerialization.java:110)
at com.vaadin.addon.charts.Chart.beforeClientResponse(Chart.java:436)
at com.vaadin.server.communication.UidlWriter.write(UidlWriter.java:126)
at com.vaadin.server.communication.UidlRequestHandler.writeUidl(UidlRequestHandler.java:124)
at com.vaadin.server.communication.UidlRequestHandler.synchronizedHandleRequest(UidlRequestHandler.java:92)
at com.vaadin.server.SynchronizedRequestHandler.handleRequest(SynchronizedRequestHandler.java:40)
at com.vaadin.server.VaadinService.handleRequest(VaadinService.java:1601)
at com.vaadin.server.VaadinServlet.service(VaadinServlet.java:445)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:790)

Perhaps there are already plans to upgrade the Jackson version you depend on? Maybe even shading of these libraries could be an option?

Would appreciate your thoughts.

Regards,

2

Hi Jack,

Thanks for evaluating Vaadin Charts, I’m glad it works great in your project.
Please may I know the exact version of Vaadin Charts you’re using (as shown by mvn dependency:tree for example)?

3

Sure - currently I can see the dependency coming in here:

[INFO]
± com.vaadin:vaadin-charts:jar:4.0.5:compile
[INFO]
| - com.vaadin:vaadin-charts-model:jar:4.0.5:compile

Hopefully that is a recent enough version?
17355210.png

4

Great! Please try 4.1.0.beta1 which contains the [update to Jackson 2.9.5]
(https://github.com/vaadin/charts/pull/511/files#diff-2a35bd04bbd14a1b21ed3b64be51b08aL273).

You can browse the Charts release versions for Vaadin Framework 7 & 8 at https://github.com/vaadin/charts/releases and for Vaadin 10+ at https://github.com/vaadin/vaadin-charts-flow/releases

5

Thank you very much - I will try that out.