--- a/src/jdk.jdeps/share/classes/com/sun/tools/jdeps/JdepsConfiguration.java	Thu Sep 21 12:13:25 2017 -0700
+++ b/src/jdk.jdeps/share/classes/com/sun/tools/jdeps/JdepsConfiguration.java	Thu Sep 21 13:55:44 2017 -0700
@@ -285,7 +285,9 @@
             String mn = mref.descriptor().name();
             URI location = mref.location().orElseThrow(FileNotFoundException::new);
             ModuleDescriptor md = mref.descriptor();
-            Module.Builder builder = new Module.Builder(md, system.find(mn).isPresent());
+            // is this module from the system module path?
+            URI loc = system.find(mn).flatMap(ModuleReference::location).orElse(null);
+            boolean isSystem = location.equals(loc);
 
             final ClassFileReader reader;
             if (location.getScheme().equals("jrt")) {
@@ -293,7 +295,7 @@
             } else {
                 reader = ClassFileReader.newInstance(Paths.get(location), version);
             }
-
+            Module.Builder builder = new Module.Builder(md, isSystem);
             builder.classes(reader);
             builder.location(location);
 

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/test/langtools/tools/jdeps/modules/upgrademodulepath/UpgradeModulePathTest.java	Thu Sep 21 13:55:44 2017 -0700
@@ -0,0 +1,115 @@
+/*
+ * Copyright (c) 2017, 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 8187449
+ * @summary Tests jdeps --upgrade-module-path
+ * @library ../../lib
+ * @build CompilerUtils
+ * @modules jdk.jartool
+ *          jdk.jdeps/com.sun.tools.jdeps
+ * @run testng UpgradeModulePathTest
+ */
+
+import java.io.BufferedWriter;
+import java.io.PrintWriter;
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.nio.file.Paths;
+import java.util.spi.ToolProvider;
+import java.util.stream.Stream;
+
+import org.testng.annotations.BeforeTest;
+import org.testng.annotations.Test;
+
+import static org.testng.Assert.assertFalse;
+import static org.testng.Assert.assertTrue;
+
+public class UpgradeModulePathTest {
+    private static final ToolProvider JAR = ToolProvider.findFirst("jar")
+        .orElseThrow(() -> new RuntimeException("jar not found"));
+
+    private static final String TEST_SRC = System.getProperty("test.src");
+
+    private static final Path SRC_DIR = Paths.get(TEST_SRC, "src");
+    private static final Path MODS_DIR = Paths.get("mods");
+
+    private static final String JAVA_COMPILER = "java.compiler";
+
+    /**
+     * Compiles classes used by the test
+     */
+    @BeforeTest
+    public void compileAll() throws Exception {
+        CompilerUtils.cleanDir(MODS_DIR);
+        assertTrue(CompilerUtils.compileModule(SRC_DIR, MODS_DIR, JAVA_COMPILER));
+
+        Path dir = MODS_DIR.resolve(JAVA_COMPILER);
+
+        // create a modular JAR file for java.compiler
+        JAR.run(System.out, System.err,
+                "cf", "java.compiler.jar", "-C", dir.toString(), ".");
+
+        // create a JAR file with AUTOMATIC-MODULE-NAME
+        try (BufferedWriter bw = Files.newBufferedWriter(Paths.get("manifest"));
+             PrintWriter writer = new PrintWriter(bw)) {
+            writer.println("AUTOMATIC-MODULE-NAME: java.compiler");
+        }
+
+        JAR.run(System.out, System.err,
+            "cfm", "auto.jar", "manifest", "-C", dir.toString(), "javax");
+    }
+
+    @Test
+    public void testSystemModule() throws Exception {
+        JdepsRunner jdepsRunner =
+            JdepsRunner.run(Stream.of("-m", "java.compiler").toArray(String[]::new));
+
+        assertTrue(jdepsRunner.outputContains("javax.tools"));
+        assertTrue(jdepsRunner.outputContains("javax.lang.model"));
+        assertTrue(jdepsRunner.outputContains("javax.annotation.processing"));
+    }
+
+    @Test
+    public void testUpgradedModule() throws Exception {
+        JdepsRunner jdepsRunner =
+            JdepsRunner.run(Stream.of("--upgrade-module-path", "java.compiler.jar",
+                                      "-m", "java.compiler").toArray(String[]::new));
+
+        assertTrue(jdepsRunner.outputContains("javax.tools"));
+        assertFalse(jdepsRunner.outputContains("javax.lang.model"));
+        assertFalse(jdepsRunner.outputContains("javax.annotation.processing"));
+    }
+
+    @Test
+    public void testAutomaticModule() throws Exception {
+        JdepsRunner jdepsRunner =
+            JdepsRunner.run(Stream.of("--upgrade-module-path", "auto.jar",
+                                      "-m", "java.compiler").toArray(String[]::new));
+
+        assertTrue(jdepsRunner.outputContains("javax.tools"));
+        assertFalse(jdepsRunner.outputContains("javax.lang.model"));
+        assertFalse(jdepsRunner.outputContains("javax.annotation.processing"));
+    }
+}

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/test/langtools/tools/jdeps/modules/upgrademodulepath/src/java.compiler/javax/tools/Tool.java	Thu Sep 21 13:55:44 2017 -0700
@@ -0,0 +1,30 @@
+/*
+ * Copyright (c) 2017, 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 javax.tools;
+
+public interface Tool {
+    default String name() {
+        return "upgraded Tool interface";
+    }
+}

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/test/langtools/tools/jdeps/modules/upgrademodulepath/src/java.compiler/module-info.java	Thu Sep 21 13:55:44 2017 -0700
@@ -0,0 +1,26 @@
+/*
+ * Copyright (c) 2017, 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.
+ */
+
+module java.compiler {
+    exports javax.tools;
+}