From 78ed12f9fb36ae87c5bb5cede9569d9c086cb665 Mon Sep 17 00:00:00 2001
From: YuriyZ <yzabrovarniy@gmail.com>
Date: Wed, 12 Jan 2022 11:50:28 +0200
Subject: [PATCH] feat: if value is null return null to token type hint

https://github.com/JanssenProject/jans-auth-server/issues/372
---
 .../src/main/java/io/jans/as/model/common/TokenTypeHint.java  | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/model/src/main/java/io/jans/as/model/common/TokenTypeHint.java b/model/src/main/java/io/jans/as/model/common/TokenTypeHint.java
index 4fcfb395762..0fb61c088a8 100644
--- a/model/src/main/java/io/jans/as/model/common/TokenTypeHint.java
+++ b/model/src/main/java/io/jans/as/model/common/TokenTypeHint.java
@@ -9,6 +9,7 @@
 import com.fasterxml.jackson.annotation.JsonCreator;
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.jans.orm.annotation.AttributeEnum;
+import org.apache.commons.lang3.StringUtils;
 
 import java.util.HashMap;
 import java.util.Map;
@@ -71,6 +72,9 @@ public static TokenTypeHint fromString(String param) {
     }
 
     public static TokenTypeHint getByValue(String value) {
+        if (StringUtils.isBlank(value)) {
+            return null;
+        }
         return mapByValues.get(value);
     }