10:51:20,440 WARN  [ajp-bio-8009-exec-1][code_jsp:128] {code="500", msg="", uri=/c/portal/login}
java.io.IOException: While exchanging code for access token and retrieving user info
	at nl.finalist.liferay.oidc.OpenIDConnectFilter.exchangeCodeForAccessToken(OpenIDConnectFilter.java:185)
	at nl.finalist.liferay.oidc.OpenIDConnectFilter.processFilter(OpenIDConnectFilter.java:126)
	at com.liferay.portal.kernel.servlet.BaseFilter.doFilter(BaseFilter.java:59)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:498)
	at com.liferay.portal.kernel.bean.ClassLoaderBeanHandler.invoke(ClassLoaderBeanHandler.java:67)
	at com.sun.proxy.$Proxy417.doFilter(Unknown Source)
	at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDoFilter(InvokerFilterChain.java:204)
	at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:109)
	at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilter.doFilter(InvokerFilter.java:96)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:222)
	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:123)
	at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:502)
	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:171)
	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:99)
	at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:953)
	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:408)
	at org.apache.coyote.ajp.AjpProcessor.process(AjpProcessor.java:200)
	at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:589)
	at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:310)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)
Caused by: OAuthProblemException{error='unsupported_response_type', description='Invalid response! Response body is not application/json encoded', uri='null', state='null', scope='null', redirectUri='null', responseStatus=0, parameters={}}
	at org.apache.oltu.oauth2.common.exception.OAuthProblemException.error(OAuthProblemException.java:63)
	at org.apache.oltu.oauth2.client.response.OAuthJSONAccessTokenResponse.setBody(OAuthJSONAccessTokenResponse.java:70)
	at org.apache.oltu.oauth2.client.response.OAuthClientResponse.init(OAuthClientResponse.java:56)
	at org.apache.oltu.oauth2.client.response.OAuthAccessTokenResponse.init(OAuthAccessTokenResponse.java:52)
	at nl.finalist.liferay.oidc.OpenIdConnectResponse.init(OpenIdConnectResponse.java:35)
	at org.apache.oltu.oauth2.client.response.OAuthClientResponseFactory.createCustomResponse(OAuthClientResponseFactory.java:60)
	at org.apache.oltu.oauth2.client.URLConnectionClient.execute(URLConnectionClient.java:111)
	at org.apache.oltu.oauth2.client.OAuthClient.accessToken(OAuthClient.java:65)
	at org.apache.oltu.oauth2.client.OAuthClient.accessToken(OAuthClient.java:55)
	at nl.finalist.liferay.oidc.OpenIDConnectFilter.exchangeCodeForAccessToken(OpenIDConnectFilter.java:162)