I am not using any Comparators/Sorting in my Java code, still it is throwing ” java.lang.IllegalArgumentException: Comparison method violates its general contract!” Exception.
Below is the piece of code that throws exception on the restTemplate.exchange line on debugging.
Started getting this exception when I changed the version of spring-boot-starter-parent from 2.3.9 to 2.5.3
How should I resolve this?
import org.springframework.web.client.RestTemplate; Function call : AzureCredentials oStoreCreds = azureAutoConfiguration.getObjectStoreCreds(mop, new RestTemplate()); @Bean @Profile("cf-azure") @Scope(value = WebApplicationContext.SCOPE_REQUEST, proxyMode = ScopedProxyMode.TARGET_CLASS) public AzureCredentials getObjectStoreCreds(ManagedObjectStoreProperties mosp, RestTemplate restTemplate) { try { String managed_instance_url = mosp.getGet_managed_instance_url().replace("{tenant_id}", tenantId); HttpHeaders headers = new HttpHeaders(); headers.setBasicAuth(mosp.getUser(), mosp.getPassword()); HttpEntity<?> entity = new HttpEntity<>(null, headers); ResponseEntity<ManagedObjectStoreAzureClientResponse> response = restTemplate.exchange(managed_instance_url, HttpMethod.GET, entity, ManagedObjectStoreAzureClientResponse.class); azureCredentials = response.getBody().getCredentials(); } catch (RestClientException exception) { LoggerHelper.logError(LoggerHelper.getLogger(this.getClass()), "Fetching managed object store credentials failed."); }catch (Exception e){ LoggerHelper.logError(LoggerHelper.getLogger(this.getClass()), "Generic Exception - Fetching managed object store credentials failed."); } return azureCredentials; }
Stack Trace:
Servlet.service() for servlet [dispatcherServlet] in context with path [] threw exception [Request processing failed; nested exception is java.lang.IllegalArgumentException: Comparison method violates its general contract!] with root cause 2021-09-28T19:56:56.86+0530 [APP/PROC/WEB/0] OUT java.lang.IllegalArgumentException: Comparison method violates its general contract! 2021-09-28T19:56:56.86+0530 [APP/PROC/WEB/0] OUT at java.util.TimSort.mergeHi(TimSort.java:899) ~[na:1.8.0_301] 2021-09-28T19:56:56.86+0530 [APP/PROC/WEB/0] OUT at java.util.TimSort.mergeAt(TimSort.java:516) ~[na:1.8.0_301] 2021-09-28T19:56:56.86+0530 [APP/PROC/WEB/0] OUT at java.util.TimSort.mergeCollapse(TimSort.java:441) ~[na:1.8.0_301] 2021-09-28T19:56:56.86+0530 [APP/PROC/WEB/0] OUT at java.util.TimSort.sort(TimSort.java:245) ~[na:1.8.0_301] 2021-09-28T19:56:56.86+0530 [APP/PROC/WEB/0] OUT at java.util.Arrays.sort(Arrays.java:1512) ~[na:1.8.0_301] 2021-09-28T19:56:56.86+0530 [APP/PROC/WEB/0] OUT at java.util.ArrayList.sort(ArrayList.java:1464) ~[na:1.8.0_301] 2021-09-28T19:56:56.86+0530 [APP/PROC/WEB/0] OUT at org.springframework.http.MediaType.sortBySpecificityAndQuality(MediaType.java:780) ~[spring-web-5.3.9.jar:5.3.9] 2021-09-28T19:56:56.86+0530 [APP/PROC/WEB/0] OUT at org.springframework.web.servlet.mvc.method.annotation.AbstractMessageConverterMethodProcessor.writeWithMessageConverters(AbstractMessageConverterMethodProcessor.java:254) ~[spring-webmvc-5.3.9.jar:5.3.9] 2021-09-28T19:56:56.86+0530 [APP/PROC/WEB/0] OUT at org.springframework.web.servlet.mvc.method.annotation.HttpEntityMethodProcessor.handleReturnValue(HttpEntityMethodProcessor.java:219) ~[spring-webmvc-5.3.9.jar:5.3.9] 2021-09-28T19:56:56.86+0530 [APP/PROC/WEB/0] OUT at org.springframework.web.method.support.HandlerMethodReturnValueHandlerComposite.handleReturnValue(HandlerMethodReturnValueHandlerComposite.java:78) ~[spring-web-5.3.9.jar:5.3.9] 2021-09-28T19:56:56.86+0530 [APP/PROC/WEB/0] OUT at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:124) ~[spring-webmvc-5.3.9.jar:5.3.9] 2021-09-28T19:56:56.86+0530 [APP/PROC/WEB/0] OUT at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:895) ~[spring-webmvc-5.3.9.jar:5.3.9] 2021-09-28T19:56:56.86+0530 [APP/PROC/WEB/0] OUT at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:808) ~[spring-webmvc-5.3.9.jar:5.3.9] 2021-09-28T19:56:56.86+0530 [APP/PROC/WEB/0] OUT at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:87) ~[spring-webmvc-5.3.9.jar:5.3.9] 2021-09-28T19:56:56.86+0530 [APP/PROC/WEB/0] OUT at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:1064) ~[spring-webmvc-5.3.9.jar:5.3.9] 2021-09-28T19:56:56.86+0530 [APP/PROC/WEB/0] OUT at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:963) ~[spring-webmvc-5.3.9.jar:5.3.9] 2021-09-28T19:56:56.86+0530 [APP/PROC/WEB/0] OUT at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1006) ~[spring-webmvc-5.3.9.jar:5.3.9] 2021-09-28T19:56:56.86+0530 [APP/PROC/WEB/0] OUT at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:909) ~[spring-webmvc-5.3.9.jar:5.3.9] 2021-09-28T19:56:56.86+0530 [APP/PROC/WEB/0] OUT at javax.servlet.http.HttpServlet.service(HttpServlet.java:681) ~[tomcat-embed-core-9.0.50.jar:4.0.FR] 2021-09-28T19:56:56.86+0530 [APP/PROC/WEB/0] OUT at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:883) ~[spring-webmvc-5.3.9.jar:5.3.9] 2021-09-28T19:56:56.86+0530 [APP/PROC/WEB/0] OUT at javax.servlet.http.HttpServlet.service(HttpServlet.java:764) ~[tomcat-embed-core-9.0.50.jar:4.0.FR] 2021-09-28T19:56:56.86+0530 [APP/PROC/WEB/0] OUT at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:228) ~[tomcat-embed-core-9.0.50.jar:9.0.50] 2021-09-28T19:56:56.86+0530 [APP/PROC/WEB/0] OUT at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:163) ~[tomcat-embed-core-9.0.50.jar:9.0.50] 2021-09-28T19:56:56.86+0530 [APP/PROC/WEB/0] OUT at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53) ~[tomcat-embed-websocket-9.0.50.jar:9.0.50] 2021-09-28T19:56:56.86+0530 [APP/PROC/WEB/0] OUT at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:190) ~[tomcat-embed-core-9.0.50.jar:9.0.50] 2021-09-28T19:56:56.86+0530 [APP/PROC/WEB/0] OUT at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:163) ~[tomcat-embed-core-9.0.50.jar:9.0.50] 2021-09-28T19:56:56.86+0530 [APP/PROC/WEB/0] OUT at com.sap.icd.mt.config.FilterConfig$1.doFilter(FilterConfig.java:36) ~[mt-spring-boot-starter-2.11.2-20200305172704.jar:na] 2021-09-28T19:56:56.86+0530 [APP/PROC/WEB/0] OUT at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:190) ~[tomcat-embed-core-9.0.50.jar:9.0.50] 2021-09-28T19:56:56.86+0530 [APP/PROC/WEB/0] OUT at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:163) ~[tomcat-embed-core-9.0.50.jar:9.0.50] 2021-09-28T19:56:56.86+0530 [APP/PROC/WEB/0] OUT at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:327) ~[spring-security-web-5.5.1.jar:5.5.1] 2021-09-28T19:56:56.86+0530 [APP/PROC/WEB/0] OUT at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.invoke(FilterSecurityInterceptor.java:115) ~[spring-security-web-5.5.1.jar:5.5.1] 2021-09-28T19:56:56.86+0530 [APP/PROC/WEB/0] OUT at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.doFilter(FilterSecurityInterceptor.java:81) ~[spring-security-web-5.5.1.jar:5.5.1] 2021-09-28T19:56:56.86+0530 [APP/PROC/WEB/0] OUT at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:336) ~[spring-security-web-5.5.1.jar:5.5.1] 2021-09-28T19:56:56.86+0530 [APP/PROC/WEB/0] OUT at org.springframework.security.web.access.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:121) ~[spring-security-web-5.5.1.jar:5.5.1] 2021-09-28T19:56:56.86+0530 [APP/PROC/WEB/0] OUT at org.springframework.security.web.access.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:115) ~[spring-security-web-5.5.1.jar:5.5.1] 2021-09-28T19:56:56.86+0530 [APP/PROC/WEB/0] OUT at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:336) ~[spring-security-web-5.5.1.jar:5.5.1] 2021-09-28T19:56:56.86+0530 [APP/PROC/WEB/0] OUT at org.springframework.security.web.session.SessionManagementFilter.doFilter(SessionManagementFilter.java:126) ~[spring-security-web-5.5.1.jar:5.5.1] 2021-09-28T19:56:56.86+0530 [APP/PROC/WEB/0] OUT at org.springframework.security.web.session.SessionManagementFilter.doFilter(SessionManagementFilter.java:81) ~[spring-security-web-5.5.1.jar:5.5.1] 2021-09-28T19:56:56.86+0530 [APP/PROC/WEB/0] OUT at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:336) ~[spring-security-web-5.5.1.jar:5.5.1] 2021-09-28T19:56:56.86+0530 [APP/PROC/WEB/0] OUT at org.springframework.security.web.authentication.AnonymousAuthenticationFilter.doFilter(AnonymousAuthenticationFilter.java:105) ~[spring-security-web-5.5.1.jar:5.5.1] 2021-09-28T19:56:56.86+0530 [APP/PROC/WEB/0] OUT at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:336) ~[spring-security-web-5.5.1.jar:5.5.1] 2021-09-28T19:56:56.86+0530 [APP/PROC/WEB/0] OUT at org.springframework.security.web.servletapi.SecurityContextHolderAwareRequestFilter.doFilter(SecurityContextHolderAwareRequestFilter.java:149) ~[spring-security-web-5.5.1.jar:5.5.1] 2021-09-28T19:56:56.86+0530 [APP/PROC/WEB/0] OUT at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:336) ~[spring-security-web-5.5.1.jar:5.5.1] 2021-09-28T19:56:56.86+0530 [APP/PROC/WEB/0] OUT at org.springframework.security.web.savedrequest.RequestCacheAwareFilter.doFilter(RequestCacheAwareFilter.java:63) ~[spring-security-web-5.5.1.jar:5.5.1] 2021-09-28T19:56:56.86+0530 [APP/PROC/WEB/0] OUT at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:336) ~[spring-security-web-5.5.1.jar:5.5.1] 2021-09-28T19:56:56.86+0530 [APP/PROC/WEB/0] OUT at org.springframework.security.oauth2.server.resource.web.BearerTokenAuthenticationFilter.doFilterInternal(BearerTokenAuthenticationFilter.java:137) ~[spring-security-oauth2-resource-server-5.5.1.jar:5.5.1] 2021-09-28T19:56:56.86+0530 [APP/PROC/WEB/0] OUT at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119) ~[spring-web-5.3.9.jar:5.3.9] 2021-09-28T19:56:56.86+0530 [APP/PROC/WEB/0] OUT at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:336) ~[spring-security-web-5.5.1.jar:5.5.1] 2021-09-28T19:56:56.86+0530 [APP/PROC/WEB/0] OUT at org.springframework.security.web.authentication.logout.LogoutFilter.doFilter(LogoutFilter.java:103) ~[spring-security-web-5.5.1.jar:5.5.1] 2021-09-28T19:56:56.86+0530 [APP/PROC/WEB/0] OUT at org.springframework.security.web.authentication.logout.LogoutFilter.doFilter(LogoutFilter.java:89) ~[spring-security-web-5.5.1.jar:5.5.1] 2021-09-28T19:56:56.86+0530 [APP/PROC/WEB/0] OUT at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:336) ~[spring-security-web-5.5.1.jar:5.5.1] 2021-09-28T19:56:56.86+0530 [APP/PROC/WEB/0] OUT at org.springframework.security.web.csrf.CsrfFilter.doFilterInternal(CsrfFilter.java:117) ~[spring-security-web-5.5.1.jar:5.5.1] 2021-09-28T19:56:56.86+0530 [APP/PROC/WEB/0] OUT at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119) ~[spring-web-5.3.9.jar:5.3.9] 2021-09-28T19:56:56.86+0530 [APP/PROC/WEB/0] OUT at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:336) ~[spring-security-web-5.5.1.jar:5.5.1] 2021-09-28T19:56:56.86+0530 [APP/PROC/WEB/0] OUT at org.springframework.security.web.header.HeaderWriterFilter.doHeadersAfter(HeaderWriterFilter.java:90) ~[spring-security-web-5.5.1.jar:5.5.1] 2021-09-28T19:56:56.86+0530 [APP/PROC/WEB/0] OUT at org.springframework.security.web.header.HeaderWriterFilter.doFilterInternal(HeaderWriterFilter.java:75) ~[spring-security-web-5.5.1.jar:5.5.1] 2021-09-28T19:56:56.86+0530 [APP/PROC/WEB/0] OUT at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119) ~[spring-web-5.3.9.jar:5.3.9] 2021-09-28T19:56:56.86+0530 [APP/PROC/WEB/0] OUT at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:336) ~[spring-security-web-5.5.1.jar:5.5.1] 2021-09-28T19:56:56.86+0530 [APP/PROC/WEB/0] OUT at org.springframework.security.web.context.SecurityContextPersistenceFilter.doFilter(SecurityContextPersistenceFilter.java:110) ~[spring-security-web-5.5.1.jar:5.5.1] 2021-09-28T19:56:56.86+0530 [APP/PROC/WEB/0] OUT at org.springframework.security.web.context.SecurityContextPersistenceFilter.doFilter(SecurityContextPersistenceFilter.java:80) ~[spring-security-web-5.5.1.jar:5.5.1] 2021-09-28T19:56:56.86+0530 [APP/PROC/WEB/0] OUT at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:336) ~[spring-security-web-5.5.1.jar:5.5.1] 2021-09-28T19:56:56.86+0530 [APP/PROC/WEB/0] OUT at org.springframework.security.web.context.request.async.WebAsyncManagerIntegrationFilter.doFilterInternal(WebAsyncManagerIntegrationFilter.java:55) ~[spring-security-web-5.5.1.jar:5.5.1] 2021-09-28T19:56:56.86+0530 [APP/PROC/WEB/0] OUT at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119) ~[spring-web-5.3.9.jar:5.3.9] 2021-09-28T19:56:56.86+0530 [APP/PROC/WEB/0] OUT at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:336) ~[spring-security-web-5.5.1.jar:5.5.1] 2021-09-28T19:56:56.86+0530 [APP/PROC/WEB/0] OUT at org.springframework.security.web.FilterChainProxy.doFilterInternal(FilterChainProxy.java:211) ~[spring-security-web-5.5.1.jar:5.5.1] 2021-09-28T19:56:56.86+0530 [APP/PROC/WEB/0] OUT at org.springframework.security.web.FilterChainProxy.doFilter(FilterChainProxy.java:183) ~[spring-security-web-5.5.1.jar:5.5.1] 2021-09-28T19:56:56.86+0530 [APP/PROC/WEB/0] OUT at org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:358) ~[spring-web-5.3.9.jar:5.3.9] 2021-09-28T19:56:56.86+0530 [APP/PROC/WEB/0] OUT at org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:271) ~[spring-web-5.3.9.jar:5.3.9] 2021-09-28T19:56:56.86+0530 [APP/PROC/WEB/0] OUT at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:190) ~[tomcat-embed-core-9.0.50.jar:9.0.50] 2021-09-28T19:56:56.86+0530 [APP/PROC/WEB/0] OUT at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:163) ~[tomcat-embed-core-9.0.50.jar:9.0.50] 2021-09-28T19:56:56.86+0530 [APP/PROC/WEB/0] OUT at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:100) ~[spring-web-5.3.9.jar:5.3.9] 2021-09-28T19:56:56.86+0530 [APP/PROC/WEB/0] OUT at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119) ~[spring-web-5.3.9.jar:5.3.9] 2021-09-28T19:56:56.86+0530 [APP/PROC/WEB/0] OUT at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:190) ~[tomcat-embed-core-9.0.50.jar:9.0.50] 2021-09-28T19:56:56.86+0530 [APP/PROC/WEB/0] OUT at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:163) ~[tomcat-embed-core-9.0.50.jar:9.0.50] 2021-09-28T19:56:56.86+0530 [APP/PROC/WEB/0] OUT at org.springframework.web.filter.FormContentFilter.doFilterInternal(FormContentFilter.java:93) ~[spring-web-5.3.9.jar:5.3.9] 2021-09-28T19:56:56.86+0530 [APP/PROC/WEB/0] OUT at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119) ~[spring-web-5.3.9.jar:5.3.9] 2021-09-28T19:56:56.86+0530 [APP/PROC/WEB/0] OUT at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:190) ~[tomcat-embed-core-9.0.50.jar:9.0.50] 2021-09-28T19:56:56.86+0530 [APP/PROC/WEB/0] OUT at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:163) ~[tomcat-embed-core-9.0.50.jar:9.0.50] 2021-09-28T19:56:56.86+0530 [APP/PROC/WEB/0] OUT at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:201) ~[spring-web-5.3.9.jar:5.3.9] 2021-09-28T19:56:56.86+0530 [APP/PROC/WEB/0] OUT at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119) ~[spring-web-5.3.9.jar:5.3.9] 2021-09-28T19:56:56.86+0530 [APP/PROC/WEB/0] OUT at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:190) ~[tomcat-embed-core-9.0.50.jar:9.0.50] 2021-09-28T19:56:56.86+0530 [APP/PROC/WEB/0] OUT at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:163) ~[tomcat-embed-core-9.0.50.jar:9.0.50] 2021-09-28T19:56:56.86+0530 [APP/PROC/WEB/0] OUT at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:202) ~[tomcat-embed-core-9.0.50.jar:9.0.50] 2021-09-28T19:56:56.86+0530 [APP/PROC/WEB/0] OUT at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:97) [tomcat-embed-core-9.0.50.jar:9.0.50] 2021-09-28T19:56:56.86+0530 [APP/PROC/WEB/0] OUT at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:542) [tomcat-embed-core-9.0.50.jar:9.0.50] 2021-09-28T19:56:56.86+0530 [APP/PROC/WEB/0] OUT at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:143) [tomcat-embed-core-9.0.50.jar:9.0.50] 2021-09-28T19:56:56.86+0530 [APP/PROC/WEB/0] OUT at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92) [tomcat-embed-core-9.0.50.jar:9.0.50] 2021-09-28T19:56:56.86+0530 [APP/PROC/WEB/0] OUT at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:78) [tomcat-embed-core-9.0.50.jar:9.0.50] 2021-09-28T19:56:56.86+0530 [APP/PROC/WEB/0] OUT at org.apache.catalina.valves.RemoteIpValve.invoke(RemoteIpValve.java:769) [tomcat-embed-core-9.0.50.jar:9.0.50] 2021-09-28T19:56:56.86+0530 [APP/PROC/WEB/0] OUT at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:357) [tomcat-embed-core-9.0.50.jar:9.0.50] 2021-09-28T19:56:56.86+0530 [APP/PROC/WEB/0] OUT at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:382) [tomcat-embed-core-9.0.50.jar:9.0.50] 2021-09-28T19:56:56.86+0530 [APP/PROC/WEB/0] OUT at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:65) [tomcat-embed-core-9.0.50.jar:9.0.50] 2021-09-28T19:56:56.86+0530 [APP/PROC/WEB/0] OUT at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:893) [tomcat-embed-core-9.0.50.jar:9.0.50] 2021-09-28T19:56:56.86+0530 [APP/PROC/WEB/0] OUT at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1723) [tomcat-embed-core-9.0.50.jar:9.0.50] 2021-09-28T19:56:56.86+0530 [APP/PROC/WEB/0] OUT at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49) [tomcat-embed-core-9.0.50.jar:9.0.50] 2021-09-28T19:56:56.86+0530 [APP/PROC/WEB/0] OUT at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) [na:1.8.0_301] 2021-09-28T19:56:56.86+0530 [APP/PROC/WEB/0] OUT at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) [na:1.8.0_301] 2021-09-28T19:56:56.86+0530 [APP/PROC/WEB/0] OUT at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) [tomcat-embed-core-9.0.50.jar:9.0.50] 2021-09-28T19:56:56.86+0530 [APP/PROC/WEB/0] OUT at java.lang.Thread.run(Thread.java:836) [na:1.8.0_301]
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Answer
The stacktrace indicates that for some reason the Comparator method for the MediaType.java
class is not ok. As you pointed out that this seems to work locally but not in the cloud I would suggest you compare runtimes.
Looking through the source code for the AbstractMessageConverterMethodProcessor.java
the sorting method is called when the content type for the response can not be found. Maybe you can force a content type by setting an accept
header in the request. Assuming your expecting a JSON response:
headers.setAccept(List.of(MediaType.APPLICATION_JSON));
Not sure if this fixes it though, as I could not reproduce the issue in the first place.