Polygon client-jvm not working with Spring Boot java project

[gstaykov]

I have created super simple project to demonstrate the issue: https://github.com/gstaykov/polygon-spring-boot

I'm running this code from your example:

PolygonRestClient client = new PolygonRestClient(polygonKey);
MarketsDTO markets = client.getReferenceClient().getSupportedMarketsBlocking();
System.out.println("Got markets synchronously: " + markets.toString());

the exception I get is:

java.lang.ClassNotFoundException: kotlin.reflect.KDeclarationContainer
       at java.base/java.net.URLClassLoader.findClass(URLClassLoader.java:433) ~[na:na]
       at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:586) ~[na:na]
       at org.springframework.boot.loader.LaunchedURLClassLoader.loadClass(LaunchedURLClassLoader.java:151) ~[demo-0.0.1-SNAPSHOT.jar:0.0.1-SNAPSHOT]
       at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:519) ~[na:na]
       at com.example.demo.Controller.testPolygon(Controller.java:15) ~[classes!/:0.0.1-SNAPSHOT]
       at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:na]
       at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:78) ~[na:na]
       at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:na]
       at java.base/java.lang.reflect.Method.invoke(Method.java:567) ~[na:na]
       at org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:197) ~[spring-web-5.3.8.jar!/:5.3.8]
       at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:141) ~[spring-web-5.3.8.jar!/:5.3.8]
       at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:106) ~[spring-webmvc-5.3.8.jar!/:5.3.8]
       at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:894) ~[spring-webmvc-5.3.8.jar!/:5.3.8]
       at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:808) ~[spring-webmvc-5.3.8.jar!/:5.3.8]
       at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:87) ~[spring-webmvc-5.3.8.jar!/:5.3.8]
       at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:1063) ~[spring-webmvc-5.3.8.jar!/:5.3.8]
       at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:963) ~[spring-webmvc-5.3.8.jar!/:5.3.8]
       at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1006) ~[spring-webmvc-5.3.8.jar!/:5.3.8]
       at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:898) ~[spring-webmvc-5.3.8.jar!/:5.3.8]
       at javax.servlet.http.HttpServlet.service(HttpServlet.java:655) ~[tomcat-embed-core-9.0.48.jar!/:na]
       at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:883) ~[spring-webmvc-5.3.8.jar!/:5.3.8]
       at javax.servlet.http.HttpServlet.service(HttpServlet.java:764) ~[tomcat-embed-core-9.0.48.jar!/:na]
       at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:228) ~[tomcat-embed-core-9.0.48.jar!/:na]
       at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:163) ~[tomcat-embed-core-9.0.48.jar!/:na]
       at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53) ~[tomcat-embed-websocket-9.0.48.jar!/:na]
       at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:190) ~[tomcat-embed-core-9.0.48.jar!/:na]
       at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:163) ~[tomcat-embed-core-9.0.48.jar!/:na]
       at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:100) ~[spring-web-5.3.8.jar!/:5.3.8]
       at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119) ~[spring-web-5.3.8.jar!/:5.3.8]
       at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:190) ~[tomcat-embed-core-9.0.48.jar!/:na]
       at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:163) ~[tomcat-embed-core-9.0.48.jar!/:na]
       at org.springframework.web.filter.FormContentFilter.doFilterInternal(FormContentFilter.java:93) ~[spring-web-5.3.8.jar!/:5.3.8]
       at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119) ~[spring-web-5.3.8.jar!/:5.3.8]
       at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:190) ~[tomcat-embed-core-9.0.48.jar!/:na]
       at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:163) ~[tomcat-embed-core-9.0.48.jar!/:na]
       at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:201) ~[spring-web-5.3.8.jar!/:5.3.8]
       at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119) ~[spring-web-5.3.8.jar!/:5.3.8]
       at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:190) ~[tomcat-embed-core-9.0.48.jar!/:na]
       at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:163) ~[tomcat-embed-core-9.0.48.jar!/:na]
       at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:202) ~[tomcat-embed-core-9.0.48.jar!/:na]
       at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:97) ~[tomcat-embed-core-9.0.48.jar!/:na]
       at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:542) ~[tomcat-embed-core-9.0.48.jar!/:na]
       at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:143) ~[tomcat-embed-core-9.0.48.jar!/:na]
       at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92) ~[tomcat-embed-core-9.0.48.jar!/:na]
       at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:78) ~[tomcat-embed-core-9.0.48.jar!/:na]
       at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:357) ~[tomcat-embed-core-9.0.48.jar!/:na]
       at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:382) ~[tomcat-embed-core-9.0.48.jar!/:na]
       at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:65) ~[tomcat-embed-core-9.0.48.jar!/:na]
       at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:893) ~[tomcat-embed-core-9.0.48.jar!/:na]
       at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1723) ~[tomcat-embed-core-9.0.48.jar!/:na]
       at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49) ~[tomcat-embed-core-9.0.48.jar!/:na]
       at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1130) ~[na:na]
       at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:630) ~[na:na]
       at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) ~[tomcat-embed-core-9.0.48.jar!/:na]
       at java.base/java.lang.Thread.run(Thread.java:831) ~[na:na]

[mmoghaddam385]

Thanks for the details and sample project! I will look into this and get back to you as soon as I can.

[gstaykov]

If you need more details or help with the example project you can contact me.

[mmoghaddam385]

Hi @gstaykov , unfortunately I haven't had much time to look into this.
I'm not very familiar with maven, but it seems like a case of missing dependencies.
Have you tried including kotlin dependencies as described on this webpage?

If that ends up helping, I'll have to look into why the transitive dependencies aren't included when importing the library via maven.

[gstaykov]

@mmoghaddam385 Yes I have tried but it still doesn't work.

[leodev87]

I spent 3 days to overcome this conflict.
This is a library conflict. Spring-boot-web scolds for the absence of the default field into JSON class at
org.jetbrains.kotlinx
kotlinx-serialization-runtime
0.14

In the search they say to try using version 0.20.0, but it did not help :(
i'm realy tired!

[vadims-grusas]

Here is a pull request for a fix #30

[mmoghaddam385]

Hi @gstaykov , since PR #30 has merged, can you confirm if this is still an issue or not? Release v3.0.0 has hopefully addressed this.

[mmoghaddam385]

PR #30 should have fixed this issue and is available in the latest release. If this comes up again please re-open this issue