src/jdk.internal.vm.compiler/share/classes/org.graalvm.compiler.core.test/src/org/graalvm/compiler/core/test/GraphPrinterTest.java
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/src/jdk.internal.vm.compiler/share/classes/org.graalvm.compiler.core.test/src/org/graalvm/compiler/core/test/GraphPrinterTest.java Tue Sep 24 12:47:15 2019 -0400
@@ -0,0 +1,55 @@
+/*
+ * 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.
+ */
+
+
+package org.graalvm.compiler.core.test;
+
+import org.graalvm.compiler.printer.CanonicalStringGraphPrinter;
+import org.junit.Test;
+
+import jdk.vm.ci.meta.JavaConstant;
+
+/**
+ * Tests related to graph printing.
+ */
+public class GraphPrinterTest extends GraalCompilerTest {
+
+ /**
+ * Tests that a self-recursive object does not cause stack overflow when formatted as a string.
+ */
+ @Test
+ public void testGraphPrinterDoesNotStackOverflow() {
+ CanonicalStringGraphPrinter printer = new CanonicalStringGraphPrinter(getSnippetReflection());
+ Object[] topArray = {null};
+ Object[] parent = topArray;
+ Object[] lastArray = null;
+ for (int i = 0; i < 5; i++) {
+ lastArray = new Object[1];
+ parent[0] = lastArray;
+ parent = lastArray;
+ }
+ lastArray[0] = topArray;
+ JavaConstant constant = getSnippetReflection().forObject(topArray);
+ printer.format(constant);
+ }
+}