fix JWKS parsing in software statements, closes mitreid-connect#1220

Author: jricher

openid-connect-server/src/main/java/org/mitre/openid/connect/web/ClientAPI.java

@@ -608,7 +608,7 @@ private ClientDetailsEntity validateSoftwareStatement(ClientDetailsEntity newCli
 								newClient.setJwksUri(claimSet.getStringClaim(claim));
 								break;
 							case JWKS:
-								newClient.setJwks(JWKSet.parse(claimSet.getStringClaim(claim)));
+								newClient.setJwks(JWKSet.parse(claimSet.getJSONObjectClaim(claim).toJSONString()));
 								break;
 							case POLICY_URI:
 								newClient.setPolicyUri(claimSet.getStringClaim(claim));

openid-connect-server/src/main/java/org/mitre/openid/connect/web/DynamicClientRegistrationEndpoint.java

@@ -688,7 +688,7 @@ private ClientDetailsEntity validateSoftwareStatement(ClientDetailsEntity newCli
 								newClient.setJwksUri(claimSet.getStringClaim(claim));
 								break;
 							case JWKS:
-								newClient.setJwks(JWKSet.parse(claimSet.getStringClaim(claim)));
+								newClient.setJwks(JWKSet.parse(claimSet.getJSONObjectClaim(claim).toJSONString()));
 								break;
 							case POLICY_URI:
 								newClient.setPolicyUri(claimSet.getStringClaim(claim));