From 501569d9f7e5a45238d036a8da5da2f7a24cdc3c Mon Sep 17 00:00:00 2001
From: duke <duke@openjdk.org>
Date: Tue, 28 Sep 2021 21:08:37 +0000
Subject: [PATCH] Backport 1017a2c2d7ae99e0076abcfaf5e730fec3cb9c6c

---
 src/java.desktop/share/native/liblcms/cmsio0.c                 | 3 ++-
 .../awt/color/ICC_ColorSpace/MTTransformReplacedProfile.java   | 2 +-
 2 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/src/java.desktop/share/native/liblcms/cmsio0.c b/src/java.desktop/share/native/liblcms/cmsio0.c
index 70be6a6ad14..6d5afc0d319 100644
--- a/src/java.desktop/share/native/liblcms/cmsio0.c
+++ b/src/java.desktop/share/native/liblcms/cmsio0.c
@@ -1532,7 +1532,7 @@ cmsBool IsTypeSupported(cmsTagDescriptor* TagDescriptor, cmsTagTypeSignature Typ
 void* CMSEXPORT cmsReadTag(cmsHPROFILE hProfile, cmsTagSignature sig)
 {
     _cmsICCPROFILE* Icc = (_cmsICCPROFILE*) hProfile;
-    cmsIOHANDLER* io = Icc ->IOhandler;
+    cmsIOHANDLER* io;
     cmsTagTypeHandler* TypeHandler;
     cmsTagTypeHandler LocalTypeHandler;
     cmsTagDescriptor*  TagDescriptor;
@@ -1573,6 +1573,7 @@ void* CMSEXPORT cmsReadTag(cmsHPROFILE hProfile, cmsTagSignature sig)
 
     if (TagSize < 8) goto Error;
 
+    io = Icc ->IOhandler;
     // Seek to its location
     if (!io -> Seek(io, Offset))
         goto Error;
diff --git a/test/jdk/java/awt/color/ICC_ColorSpace/MTTransformReplacedProfile.java b/test/jdk/java/awt/color/ICC_ColorSpace/MTTransformReplacedProfile.java
index df66f29ecec..7d0b501e72b 100644
--- a/test/jdk/java/awt/color/ICC_ColorSpace/MTTransformReplacedProfile.java
+++ b/test/jdk/java/awt/color/ICC_ColorSpace/MTTransformReplacedProfile.java
@@ -34,7 +34,7 @@
 
 /**
  * @test
- * @bug 8271718
+ * @bug 8271718 8273135
  * @summary Verifies MT safety of color transformation while profile is changed
  */
 public final class MTTransformReplacedProfile {