Valid token getting NullPointerException

[saicharan902]

When i run curl command getting error

`2019-11-16 23:20:09.586 ERROR 6989 --- [nio-8080-exec-1] .c.b.f.AwsCognitoJwtAuthenticationFilter : Error occured while processing Cognito ID Token

java.lang.NullPointerException: null
at com.ixortalk.aws.cognito.boot.filter.AwsCognitoIdTokenProcessor.convertList(AwsCognitoIdTokenProcessor.java:109) ~[ixortalk.aws.cognito.jwt.security.filter-0.0.7.jar:0.0.7]
at com.ixortalk.aws.cognito.boot.filter.AwsCognitoIdTokenProcessor.getAuthentication(AwsCognitoIdTokenProcessor.java:83) ~[ixortalk.aws.cognito.jwt.security.filter-0.0.7.jar:0.0.7]
at com.ixortalk.aws.cognito.boot.filter.AwsCognitoJwtAuthenticationFilter.doFilter(AwsCognitoJwtAuthenticationFilter.java:54) ~[ixortalk.aws.cognito.jwt.security.filter-0.0.7.jar:0.0.7]
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334) [spring-security-web-5.2.1.RELEASE.jar:5.2.1.RELEASE]
at org.springframework.security.web.authentication.logout.LogoutFilter.doFilter(LogoutFilter.java:116) [spring-security-web-5.2.1.RELEASE.jar:5.2.1.RELEASE]
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334) [spring-security-web-5.2.1.RELEASE.jar:5.2.1.RELEASE]
at org.springframework.security.web.header.HeaderWriterFilter.doHeadersAfter(HeaderWriterFilter.java:92) [spring-security-web-5.2.1.RELEASE.jar:5.2.1.RELEASE]
at org.springframework.security.web.header.HeaderWriterFilter.doFilterInternal(HeaderWriterFilter.java:77) [spring-security-web-5.2.1.RELEASE.jar:5.2.1.RELEASE]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119) [spring-web-5.2.1.RELEASE.jar:5.2.1.RELEASE]
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334) [spring-security-web-5.2.1.RELEASE.jar:5.2.1.RELEASE]
at org.springframework.security.web.context.SecurityContextPersistenceFilter.doFilter(SecurityContextPersistenceFilter.java:105) [spring-security-web-5.2.1.RELEASE.jar:5.2.1.RELEASE]
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334) [spring-security-web-5.2.1.RELEASE.jar:5.2.1.RELEASE]
at org.springframework.security.web.context.request.async.WebAsyncManagerIntegrationFilter.doFilterInternal(WebAsyncManagerIntegrationFilter.java:56) [spring-security-web-5.2.1.RELEASE.jar:5.2.1.RELEASE]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119) [spring-web-5.2.1.RELEASE.jar:5.2.1.RELEASE]
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334) [spring-security-web-5.2.1.RELEASE.jar:5.2.1.RELEASE]
at org.springframework.security.web.FilterChainProxy.doFilterInternal(FilterChainProxy.java:215) [spring-security-web-5.2.1.RELEASE.jar:5.2.1.RELEASE]
at org.springframework.security.web.FilterChainProxy.doFilter(FilterChainProxy.java:178) [spring-security-web-5.2.1.RELEASE.jar:5.2.1.RELEASE]
at org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:358) [spring-web-5.2.1.RELEASE.jar:5.2.1.RELEASE]
at org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:271) [spring-web-5.2.1.RELEASE.jar:5.2.1.RELEASE]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) [tomcat-embed-core-9.0.27.jar:9.0.27]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) [tomcat-embed-core-9.0.27.jar:9.0.27]
at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:100) [spring-web-5.2.1.RELEASE.jar:5.2.1.RELEASE]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119) [spring-web-5.2.1.RELEASE.jar:5.2.1.RELEASE]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) [tomcat-embed-core-9.0.27.jar:9.0.27]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) [tomcat-embed-core-9.0.27.jar:9.0.27]
at org.springframework.web.filter.FormContentFilter.doFilterInternal(FormContentFilter.java:93) [spring-web-5.2.1.RELEASE.jar:5.2.1.RELEASE]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119) [spring-web-5.2.1.RELEASE.jar:5.2.1.RELEASE]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) [tomcat-embed-core-9.0.27.jar:9.0.27]`

[jothatcher-dp]

I have the same error - every user logging in must be a member of a group for the code to work

[Kota-Yamaguchi]

I faced this problem too.
It seems to be caused by the user not belonging to a group.

・Solution Method

1. Create a group in the Cognito user pool.
2. Add users to the group.

The above method solves the problem.
This library seems to be created assuming that the user has been added to a user group.