Add JDK-8237396 backport to resolve Shenandoah TCK breakage in traversal mode.

java-11-openjdk.spec

@@ -223,7 +223,7 @@
 %global top_level_dir_name   %{origin}
 %global minorver        0
 %global buildver        2
-%global rpmrelease      3
+%global rpmrelease      4
 #%%global tagsuffix      ""
 # priority must be 8 digits in total; untill openjdk 1.8 we were using 18..... so when moving to 11 we had to add another digit
 %if %is_system_jdk
@@ -1056,6 +1056,16 @@ Patch6:    rh1566890-CVE_2018_3639-speculative_store_bypass.patch
 Patch7: pr3695-toggle_system_crypto_policy.patch
 # S390 ambiguous log2_intptr call
 Patch8: s390-8214206_fix.patch
+
+#############################################
+#
+# Patches appearing in 11.0.7
+#
+# This section includes patches which are present
+# in the listed OpenJDK 11u release and should be
+# able to be removed once that release is out
+# and used by this RPM.
+#############################################
 # JDK-8241296: Segfault in JNIHandleBlock::oops_do()
 Patch10: jdk8241296-jnihandleblock_segfault.patch
 
@@ -1070,6 +1080,8 @@ Patch10: jdk8241296-jnihandleblock_segfault.patch
 #############################################
 # JDK-8237879: make 4.3 breaks build
 Patch9: jdk8237879-make_4_3_build_fixes.patch
+# JDK-8237396: JvmtiTagMap::weak_oops_do() should not trigger barriers
+Patch11: jdk8237396-avoid_triggering_barriers.patch
 
 #############################################
 #
@@ -1307,6 +1319,7 @@ pushd %{top_level_dir_name}
 %patch8 -p1
 %patch9 -p1
 %patch10 -p1
+%patch11 -p1
 popd # openjdk
 
 %patch1000
@@ -1850,6 +1863,9 @@ require "copy_jdk_configs.lua"
 
 
 %changelog
+* Sat Mar 28 2020 Andrew John Hughes <gnu.andrew@redhat.com> - 1:11.0.7.2-0.4.ea
+- Add JDK-8237396 backport to resolve Shenandoah TCK breakage in traversal mode.
+
 * Tue Mar 24 2020 Severin Gehwolf <sgehwolf@redhat.com> - 1:11.0.7.2-0.3.ea
 - Revert GCC 10 workaround for s390x.
 - Resolves RHBZ#1799087.

jdk8237396-avoid_triggering_barriers.patch

@@ -0,0 +1,58 @@
+# HG changeset patch
+# User zgu
+# Date 1579696811 18000
+#      Wed Jan 22 07:40:11 2020 -0500
+# Node ID 91ea567eeabeade6b3f8d6cf10c02ba53f700eca
+# Parent  082f1d3eb1649ff776cda165ed78d65bc7361ebc
+8237396: JvmtiTagMap::weak_oops_do() should not trigger barriers
+Reviewed-by: stefank, rkennke
+
+diff --git a/src/hotspot/share/prims/jvmtiTagMap.cpp b/src/hotspot/share/prims/jvmtiTagMap.cpp
+--- a/src/hotspot/share/prims/jvmtiTagMap.cpp
++++ b/src/hotspot/share/prims/jvmtiTagMap.cpp
+@@ -1,5 +1,5 @@
+ /*
+- * Copyright (c) 2003, 2018, Oracle and/or its affiliates. All rights reserved.
++ * Copyright (c) 2003, 2020, Oracle and/or its affiliates. All rights reserved.
+  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+  *
+  * This code is free software; you can redistribute it and/or modify it
+@@ -96,6 +96,11 @@
+   inline oop object_peek()  {
+     return NativeAccess<ON_PHANTOM_OOP_REF | AS_NO_KEEPALIVE>::oop_load(object_addr());
+   }
++
++  inline oop object_raw() {
++    return RawAccess<>::oop_load(object_addr());
++  }
++
+   inline jlong tag() const  { return _tag; }
+ 
+   inline void set_tag(jlong tag) {
+@@ -3357,7 +3362,7 @@
+       JvmtiTagHashmapEntry* next = entry->next();
+ 
+       // has object been GC'ed
+-      if (!is_alive->do_object_b(entry->object_peek())) {
++      if (!is_alive->do_object_b(entry->object_raw())) {
+         // grab the tag
+         jlong tag = entry->tag();
+         guarantee(tag != 0, "checking");
+@@ -3375,7 +3380,7 @@
+         ++freed;
+       } else {
+         f->do_oop(entry->object_addr());
+-        oop new_oop = entry->object_peek();
++        oop new_oop = entry->object_raw();
+ 
+         // if the object has moved then re-hash it and move its
+         // entry to its new location.
+@@ -3409,7 +3414,7 @@
+   // Re-add all the entries which were kept aside
+   while (delayed_add != NULL) {
+     JvmtiTagHashmapEntry* next = delayed_add->next();
+-    unsigned int pos = JvmtiTagHashmap::hash(delayed_add->object_peek(), size);
++    unsigned int pos = JvmtiTagHashmap::hash(delayed_add->object_raw(), size);
+     delayed_add->set_next(table[pos]);
+     table[pos] = delayed_add;
+     delayed_add = next;