From 23e2d259f3a0bfa9666b497ae68a79087fd9aa73 Mon Sep 17 00:00:00 2001
From: Tomas Hofman <thofman@redhat.com>
Date: Thu, 13 Feb 2020 09:43:26 +0100
Subject: [PATCH] Catch IllegalStateException during shutdown hook removal
 attempt...

...when shutdown is already in progress

Signed-off-by: Tomas Hofman <thofman@redhat.com>
---
 .../main/java/io/jaegertracing/internal/JaegerTracer.java   | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/jaeger-core/src/main/java/io/jaegertracing/internal/JaegerTracer.java b/jaeger-core/src/main/java/io/jaegertracing/internal/JaegerTracer.java
index fcc2a2704..9a26c96d5 100644
--- a/jaeger-core/src/main/java/io/jaegertracing/internal/JaegerTracer.java
+++ b/jaeger-core/src/main/java/io/jaegertracing/internal/JaegerTracer.java
@@ -227,7 +227,11 @@ public void close() {
     reporter.close();
     sampler.close();
     if (shutdownHook != null) {
-      Runtime.getRuntime().removeShutdownHook(shutdownHook);
+      try {
+        Runtime.getRuntime().removeShutdownHook(shutdownHook);
+      } catch (IllegalStateException e) {
+        log.info("Can't remove shutdown hook, shutdown already in progress.");
+      }
     }
   }