quick fix TelemetryResponse for drawdown license

Graylog2 · Jul 4, 2024 · 351f44a · 351f44a
1 parent 1c4ab13
commit 351f44a
Showing 1 changed file with 5 additions and 1 deletion.
diff --git a/graylog2-server/src/main/java/org/graylog2/telemetry/rest/TelemetryResponseFactory.java b/graylog2-server/src/main/java/org/graylog2/telemetry/rest/TelemetryResponseFactory.java
@@ -16,6 +16,7 @@
  */
 package org.graylog2.telemetry.rest;
 
+import com.google.common.base.Strings;
 import org.graylog2.system.stats.elasticsearch.NodeInfo;
 import org.graylog2.telemetry.enterprise.TelemetryLicenseStatus;
 import org.joda.time.DateTime;
@@ -160,6 +161,9 @@ private List<TelemetryLicenseStatus> filter(List<TelemetryLicenseStatus> telemet
     }
 
     private String formatLicenseString(TelemetryLicenseStatus telemetryLicenseStatus) {
-        return telemetryLicenseStatus.subject().replace("/", "_").substring(1);
+        if (!Strings.isNullOrEmpty(telemetryLicenseStatus.subject())) {
+            return telemetryLicenseStatus.subject().replace("/", "_").substring(1);
+        }
+        return "";
     }
 }