Springwolf-Kafka Protobuf Exception

[kaant2]

Describe the bug
When working with protobufs, ExampleJsonGenerator class throws NullPointerException for type google.protobuf.Timestamp

Dependencies and versions used
springwolf-kafka version 0.13.0.
spring-boot version 3.1.2

Code example

syntax = "proto3"; message AProto { string a = 1; string b = 2; string c = 3; string d = 4; google.protobuf.Timestamp e = 5; int64 f = 6; string g = 7; }

Stack trace and error logs

`org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'springwolfInitApplicationListener' defined in URL [jar:file:/C:/Users/kaan/.m2/repository/io/github/springwolf/springwolf-core/0.13.0/springwolf-core-0.13.0.jar!/io/github/stavshamir/springwolf/asyncapi/SpringwolfInitApplicationListener.class]: Error occured during creation of AsyncAPI
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1770)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:598)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:520)
at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:326)
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:234)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:324)
at com.kaan.starter.common.factory.TimedDefaultListableBeanFactory.doGetBean(TimedDefaultListableBeanFactory.java:67)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:200)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:973)
at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:942)
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:608)
at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:146)
at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:734)
at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:436)
at org.springframework.boot.SpringApplication.run(SpringApplication.java:312)
at com.kaan.starter.common.util.ApplicationSupport.run(ApplicationSupport.java:20)
at com.kaan.file.FileServiceApplication.main(FileServiceApplication.java:11)
Caused by: java.lang.RuntimeException: Error occured during creation of AsyncAPI
at io.github.stavshamir.springwolf.asyncapi.DefaultAsyncApiService.getAsyncAPI(DefaultAsyncApiService.java:45)
at io.github.stavshamir.springwolf.asyncapi.SpringwolfInitApplicationListener.afterPropertiesSet(SpringwolfInitApplicationListener.java:39)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1817)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1766)
... 16 common frames omitted
Caused by: java.lang.NullPointerException: Cannot invoke "java.util.Map.entrySet()" because "properties" is null
at io.github.stavshamir.springwolf.schemas.example.ExampleJsonGenerator.handleObject(ExampleJsonGenerator.java:134)
at io.github.stavshamir.springwolf.schemas.example.ExampleJsonGenerator.buildSchema(ExampleJsonGenerator.java:69)
at io.github.stavshamir.springwolf.schemas.example.ExampleJsonGenerator.buildSchema(ExampleJsonGenerator.java:61)
at io.github.stavshamir.springwolf.schemas.example.ExampleJsonGenerator.lambda$handleObject$0(ExampleJsonGenerator.java:140)
at java.base/java.util.stream.ReferencePipeline$3$1.accept(ReferencePipeline.java:197)
at java.base/java.util.Iterator.forEachRemaining(Iterator.java:133)
at java.base/java.util.Spliterators$IteratorSpliterator.forEachRemaining(Spliterators.java:1845)
at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:509)
at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:499)
at java.base/java.util.stream.ReduceOps$ReduceOp.evaluateSequential(ReduceOps.java:921)
at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234)
at java.base/java.util.stream.ReferencePipeline.collect(ReferencePipeline.java:682)
at io.github.stavshamir.springwolf.schemas.example.ExampleJsonGenerator.handleObject(ExampleJsonGenerator.java:144)
at io.github.stavshamir.springwolf.schemas.example.ExampleJsonGenerator.buildSchema(ExampleJsonGenerator.java:69)
at io.github.stavshamir.springwolf.schemas.example.ExampleJsonGenerator.buildSchema(ExampleJsonGenerator.java:61)
at io.github.stavshamir.springwolf.schemas.example.ExampleJsonGenerator.lambda$handleObject$0(ExampleJsonGenerator.java:140)
at java.base/java.util.stream.ReferencePipeline$3$1.accept(ReferencePipeline.java:197)
at java.base/java.util.Iterator.forEachRemaining(Iterator.java:133)
at java.base/java.util.Spliterators$IteratorSpliterator.forEachRemaining(Spliterators.java:1845)
at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:509)
at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:499)
at java.base/java.util.stream.ReduceOps$ReduceOp.evaluateSequential(ReduceOps.java:921)
at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234)
at java.base/java.util.stream.ReferencePipeline.collect(ReferencePipeline.java:682)
at io.github.stavshamir.springwolf.schemas.example.ExampleJsonGenerator.handleObject(ExampleJsonGenerator.java:144)
at io.github.stavshamir.springwolf.schemas.example.ExampleJsonGenerator.buildSchema(ExampleJsonGenerator.java:69)
at io.github.stavshamir.springwolf.schemas.example.ExampleJsonGenerator.fromSchema(ExampleJsonGenerator.java:39)
at io.github.stavshamir.springwolf.schemas.DefaultSchemasService.generateExampleWhenMissing(DefaultSchemasService.java:89)
at java.base/java.util.HashMap.forEach(HashMap.java:1421)
at io.github.stavshamir.springwolf.schemas.DefaultSchemasService.finalizeDefinitions(DefaultSchemasService.java:45)
at io.github.stavshamir.springwolf.schemas.DefaultSchemasService.getDefinitions(DefaultSchemasService.java:39)
at io.github.stavshamir.springwolf.asyncapi.DefaultAsyncApiService.initAsyncAPI(DefaultAsyncApiService.java:71)
at io.github.stavshamir.springwolf.asyncapi.DefaultAsyncApiService.getAsyncAPI(DefaultAsyncApiService.java:39)
... 19 common frames omitted

`

[github-actions]

Welcome to Springwolf. Thanks a lot for reporting your first issue. Please check out our contributors guide and feel free to join us on discord.

[timonback]

Hi @kaant2,

Thank you for the report.

Luckily, this is a duplicate of #314 and has been fixed in the current -SNAPSHOT version.

We do not use protobuf (google.protobuf.Timestamp) in this project, but like to support it/fix issues when there is an easy way.

I keep this open until the next release.
Feel free to re-open & comment if the issue persists in the next release.

[timonback]

Thank your for the report, the issue has been addressed in the new release.

Feel free to reopen this issue if there is still something missing.

Also, please participate in #342 if you can :)