--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/test/hotspot/jtreg/compiler/c2/Test7125879.java	Tue Sep 12 19:03:39 2017 +0200
@@ -0,0 +1,52 @@
+/*
+ * Copyright (c) 2011, 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 7125879
+ * @summary assert(proj != NULL) failed: must be found
+ *
+ * @run main/othervm -Xcomp compiler.c2.Test7125879
+ */
+
+package compiler.c2;
+
+public class Test7125879 {
+    String var_1 = "abc";
+
+    public Test7125879() {
+        var_1 = var_1.replaceAll("d", "e") + var_1;
+    }
+
+    public static void main(String[] args) {
+        Test7125879 t = new Test7125879();
+        try {
+            t.test();
+        } catch(Throwable e) { }
+    }
+
+    private void test() {
+        new Test7125879().var_1 = ((Test7125879)(new Object[-1])[0]).var_1;
+    }
+}
+