# HG changeset patch
# User thartmann
# Date 1548143221 -3600
# Node ID 698ee6095c76f00f84348ef3b23f597235c3fb25
# Parent  fe89919501056b8252c2bfc617e72d3dafb40fa6
8217447: Develop flag TraceICs is broken
Summary: Added NULL check and fixed output.
Reviewed-by: kvn

diff -r fe8991950105 -r 698ee6095c76 src/hotspot/share/code/compiledIC.cpp
--- a/src/hotspot/share/code/compiledIC.cpp	Tue Jan 22 10:42:41 2019 +0300
+++ b/src/hotspot/share/code/compiledIC.cpp	Tue Jan 22 08:47:01 2019 +0100
@@ -482,10 +482,10 @@
     if (TraceICs) {
       ResourceMark rm(thread);
       assert(info.cached_metadata() == NULL || info.cached_metadata()->is_klass(), "must be");
-      tty->print_cr ("IC@" INTPTR_FORMAT ": monomorphic to compiled (rcvr klass) %s: %s",
+      tty->print_cr ("IC@" INTPTR_FORMAT ": monomorphic to compiled (rcvr klass = %s) %s",
         p2i(instruction_address()),
-        ((Klass*)info.cached_metadata())->print_value_string(),
-        (safe) ? "" : "via stub");
+        (info.cached_metadata() != NULL) ? ((Klass*)info.cached_metadata())->print_value_string() : "NULL",
+        (safe) ? "" : " via stub");
     }
   }
   // We can't check this anymore. With lazy deopt we could have already
diff -r fe8991950105 -r 698ee6095c76 test/hotspot/jtreg/compiler/arguments/TestTraceICs.java
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/test/hotspot/jtreg/compiler/arguments/TestTraceICs.java	Tue Jan 22 08:47:01 2019 +0100
@@ -0,0 +1,40 @@
+/*
+ * Copyright (c) 2019, 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
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+/*
+ * @test
+ * @bug 8217447
+ * @summary Test running TraceICs enabled.
+ * @run main/othervm -XX:+IgnoreUnrecognizedVMOptions -XX:+TraceICs
+ *                   compiler.arguments.TestTraceICs
+ */
+
+package compiler.arguments;
+
+public class TestTraceICs {
+
+    static public void main(String[] args) {
+        System.out.println("Passed");
+    }
+}
+