⚡ token发放增加空判断

blade-auth/src/main/java/org/springblade/auth/support/BladeJwtTokenEnhancer.java

@@ -45,6 +45,11 @@ public class BladeJwtTokenEnhancer implements TokenEnhancer {
 
 	@Override
 	public OAuth2AccessToken enhance(OAuth2AccessToken accessToken, OAuth2Authentication authentication) {
+
+		if (authentication.getUserAuthentication() == null) {
+			return accessToken;
+		}
+
 		BladeUserDetails principal = (BladeUserDetails) authentication.getUserAuthentication().getPrincipal();
 
 		//token参数增强