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test/java/lang/invoke/modules/m1/p1/Main.java
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@@ -1,7 +1,7 @@
/*
- * Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2015, 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.
@@ -25,186 +25,334 @@
import java.lang.invoke.MethodHandle;
import java.lang.invoke.MethodHandles;
import java.lang.invoke.MethodHandles.Lookup;
import java.lang.invoke.MethodType;
+import java.lang.reflect.Layer;
+import java.lang.reflect.Module;
+
+import static java.lang.invoke.MethodHandles.Lookup.*;
+
+import org.testng.annotations.BeforeTest;
+import org.testng.annotations.Test;
+import static org.testng.Assert.*;
/**
- * Basic test case for module access check, supplements AccessControlTest.
- *
- * The tests consists of two modules:
- *
- * module m1 { requires m2; exports p1; }
- * module m2 { exports q1; }
- *
- * Both modules read java.base (as every module reads java.base)
- *
- * module m1 has public types in packages p1 and p2, p2 is not exported.
- * module m2 has public types in packages q1 and q2, q2 is not exported.
+ * Basic test case for module access checks and Lookup.in.
*/
+@Test
public class Main {
- static final int MODULE = Lookup.MODULE;
-
- // Use Class.forName to get classes for test because some
- // are not accessible at compile-time
+ private Class<?> p1_Type1; // m1, exported
+ private Class<?> p2_Type2; // m1, not exported
+ private Class<?> q1_Type1; // m2, exported
+ private Class<?> q2_Type2; // m2, not exported
+ private Class<?> x500NameClass; // java.base, not exported
+ private Class<?> unnamedClass; // class in unnamed module
- static final Class<?> p1_Type1; // m1, exported
- static final Class<?> p2_Type2; // m1, not exported
- static final Class<?> q1_Type1; // m2, exported, m1 reads m2
- static final Class<?> q2_Type2; // m2, not exported, m1 reads m2
- static final Class<?> x500NameClass; // java.base, not exported
-
- static {
+ @BeforeTest
+ public void setup() throws Exception {
try {
p1_Type1 = Class.forName("p1.Type1");
p2_Type2 = Class.forName("p2.Type2");
q1_Type1 = Class.forName("q1.Type1");
q2_Type2 = Class.forName("q2.Type2");
x500NameClass = Class.forName("sun.security.x509.X500Name");
+ unnamedClass = Class.forName("Unnamed");
} catch (ClassNotFoundException e) {
throw new AssertionError(e);
}
- }
- public static void main(String[] args) throws Exception {
- Lookup lookup, lookup2;
+ // check setup
+ Module m1 = Layer.boot().findModule("m1").orElse(null);
+ assertNotNull(m1);
+ assertTrue(p1_Type1.getModule() == m1);
+ assertTrue(p2_Type2.getModule() == m1);
+ assertTrue(m1.isExported("p1"));
+ assertFalse(m1.isExported("p2"));
+
+ Module m2 = Layer.boot().findModule("m2").orElse(null);
+ assertNotNull(m2);
+ assertTrue(q1_Type1.getModule() == m2);
+ assertTrue(q2_Type2.getModule() == m2);
+ assertTrue(m2.isExported("q1"));
+ assertFalse(m2.isExported("q2"));
+
+ Module unnamedModule = unnamedClass.getModule();
+ assertFalse(unnamedModule.isNamed());
+
+ // m1 needs to read unnamed module
+ Main.class.getModule().addReads(unnamedModule);
+ }
/**
* MethodHandles.lookup()
- * has module access [A0]
- * can access all public types in m1 [A1]
- * can access public types in packages exported by modules that m1 reads [A2]
- * cannot access public types in non-exported modules of modules that m1 reads [A3]
+ *
+ * [A0] has module access
+ * [A1] can access all public types in m1
+ * [A2] can access public types in packages exported by modules that m1 reads
+ * [A3] cannot access public types in non-exported modules of modules that m1 reads
*/
- lookup = MethodHandles.lookup();
+ public void testLookup() throws Exception {
+ Lookup lookup = MethodHandles.lookup();
assertTrue((lookup.lookupModes() & MODULE) == MODULE); // [A0]
+
+ // m1
findConstructor(lookup, p1_Type1, void.class); // [A1]
findConstructor(lookup, p2_Type2, void.class); // [A1]
+
+ // m2
findConstructor(lookup, q1_Type1, void.class); // [A2]
findConstructorExpectingIAE(lookup, q2_Type2, void.class); // [A3]
+
+ // java.base
findConstructor(lookup, Object.class, void.class); // [A2]
findConstructorExpectingIAE(lookup, x500NameClass, void.class, String.class); // [A3]
+ // unnamed
+ findConstructor(lookup, unnamedClass, void.class); // [A3]
+ }
+
/**
- * Teleport from MethodHandles.lookup() to lookup class in the same module
- * module access is retained [A0]
- * can access all public types in m1 [A1]
- * can access public types in packages exported by modules that m1 reads [A2]
- * cannot access public types in non-exported modules of modules that m1 reads [A3]
- */
- lookup2 = lookup.in(p2_Type2);
- assertTrue((lookup2.lookupModes() & MODULE) == MODULE); // [A0]
- findConstructor(lookup2, p1_Type1, void.class); // [A1]
- findConstructor(lookup2, p2_Type2, void.class); // [A1]
- findConstructor(lookup2, q1_Type1, void.class); // [A2]
- findConstructorExpectingIAE(lookup2, q2_Type2, void.class); // [A3]
- findConstructor(lookup2, Object.class, void.class); // [A2]
- findConstructorExpectingIAE(lookup2, x500NameClass, void.class, String.class); // [A3]
-
- /**
- * Teleport from MethodHandles.lookup() to lookup class in another named module
- * has no access [A0]
- */
- lookup2 = lookup.in(Object.class);
- assertTrue(lookup2.lookupModes() == 0); // [A0]
- findConstructorExpectingIAE(lookup2, Object.class, void.class); // [A0]
-
- /**
- * Teleport from MethodHandles.lookup() to lookup class in an unnamed module
- * has no access [A0]
- */
- Class<?> c = MethodHandles.publicLookup().lookupClass();
- assertTrue(!c.getModule().isNamed());
- lookup2 = lookup.in(c);
- assertTrue(lookup2.lookupModes() == 0); // [A0]
- findConstructorExpectingIAE(lookup2, Object.class, void.class);
+ * Hop to lookup class in the same module
+ *
+ * [A0] module and public access is not lost
+ */
+ public void testToSameModule() throws Exception {
+ Lookup lookup = MethodHandles.lookup().in(p2_Type2);
+ assertTrue(lookup.lookupModes() == (MODULE|PUBLIC)); // [A0]
+
+ // m1
+ findConstructor(lookup, p1_Type1, void.class);
+ findConstructor(lookup, p2_Type2, void.class);
+
+ // m2
+ findConstructor(lookup, q1_Type1, void.class);
+ findConstructorExpectingIAE(lookup, q2_Type2, void.class);
+
+ // java.base
+ findConstructor(lookup, Object.class, void.class);
+ findConstructorExpectingIAE(lookup, x500NameClass, void.class, String.class);
+
+ // unnamed
+ findConstructor(lookup, unnamedClass, void.class);
+ }
+
+ /**
+ * Hop to lookup class in another named module
+ *
+ * [A0] has no access
+ */
+ public void testFromNamedToNamedModule() throws Exception {
+ Lookup lookup = MethodHandles.lookup().in(q1_Type1);
+ assertTrue(lookup.lookupModes() == 0); // [A0]
+
+ // m1
+ findConstructorExpectingIAE(lookup, p1_Type1, void.class);
+ findConstructorExpectingIAE(lookup, p2_Type2, void.class);
+
+ // m2
+ findConstructorExpectingIAE(lookup, q1_Type1, void.class);
+ findConstructorExpectingIAE(lookup, q2_Type2, void.class);
+
+ // java.base
+ findConstructorExpectingIAE(lookup, Object.class, void.class);
+ findConstructorExpectingIAE(lookup, x500NameClass, void.class, String.class);
+
+ // unnamed
+ findConstructorExpectingIAE(lookup, unnamedClass, void.class);
+ }
+
+ /**
+ * Hop to lookup class in an unnamed module
+ *
+ * [A0] has no access
+ */
+ public void testFromNamedToUnnamedModule() throws Exception {
+ Lookup lookup = MethodHandles.lookup().in(unnamedClass);
+ assertTrue(lookup.lookupModes() == 0); // [A0]
+
+ // m1
+ findConstructorExpectingIAE(lookup, p1_Type1, void.class);
+ findConstructorExpectingIAE(lookup, p2_Type2, void.class);
+
+ // m2
+ findConstructorExpectingIAE(lookup, q1_Type1, void.class);
+ findConstructorExpectingIAE(lookup, q2_Type2, void.class);
+
+ // java.base
+ findConstructorExpectingIAE(lookup, Object.class, void.class);
+ findConstructorExpectingIAE(lookup, x500NameClass, void.class, String.class);
+
+ // unnamed
+ findConstructorExpectingIAE(lookup, unnamedClass, void.class);
+ }
+
+ /**
+ * Hop from unnamed to named module.
+ *
+ * [A0] retains PUBLIC access
+ */
+ public void testFromUnnamedToNamedModule() throws Exception {
+ Lookup lookup = MethodHandles.lookup();
+ lookup = MethodHandles.privateLookupIn(unnamedClass, lookup).in(p1_Type1);
+ assertTrue(lookup.lookupModes() == PUBLIC); // A0
+
+ // m1
+ findConstructor(lookup, p1_Type1, void.class);
+ findConstructorExpectingIAE(lookup, p2_Type2, void.class);
+
+ // m2
+ findConstructor(lookup, q1_Type1, void.class);
+ findConstructorExpectingIAE(lookup, q2_Type2, void.class);
+
+ // java.base
+ findConstructor(lookup, Object.class, void.class);
+ findConstructorExpectingIAE(lookup, x500NameClass, void.class, String.class);
+
+ // unnamed
+ findConstructor(lookup, unnamedClass, void.class);
+ }
/**
* MethodHandles.publicLookup()
- * has no module access [A0]
- * can access public types in exported packages [A1]
- * cannot access public types in non-exported packages [A2]
+ *
+ * [A0] has PUBLIC|UNCONDITIONAL access
*/
- lookup = MethodHandles.publicLookup();
- assertTrue((lookup.lookupModes() & MODULE) == 0); // [A0]
- findConstructor(lookup, p1_Type1, void.class); // [A1]
- findConstructorExpectingIAE(lookup, p2_Type2, void.class); // [A1]
- findConstructor(lookup, q1_Type1, void.class); // [A1]
- findConstructorExpectingIAE(lookup, q2_Type2, void.class); // [A2]
- findConstructor(lookup, Object.class, void.class); // [A1]
- findConstructorExpectingIAE(lookup, x500NameClass, void.class); // [A2]
-
- /**
- * Teleport from MethodHandles.publicLookup() to lookup class in java.base
- * has no module access [A0]
- * can access public types in packages exported by java.base [A1]
- * cannot access public types in non-exported packages [A2]
- * no access to types in other named modules [A3]
- */
- lookup2 = lookup.in(Object.class);
- assertTrue((lookup2.lookupModes() & MODULE) == 0); // [A0]
- findConstructor(lookup2, String.class, void.class); // [A1]
- findConstructorExpectingIAE(lookup2, x500NameClass, void.class, String.class); // [A2]
- findConstructorExpectingIAE(lookup2, p1_Type1, void.class); // [A3]
- findConstructorExpectingIAE(lookup2, q1_Type1, void.class); // [A3]
-
- /**
- * Teleport from MethodHandles.publicLookup() to lookup class in m1
- * has no module access [A0]
- * can access public types in packages exported by m1, m2 and java.base [A1]
- * cannot access public types is non-exported packages [A2]
- */
- lookup2 = lookup.in(p1_Type1);
- assertTrue((lookup2.lookupModes() & MODULE) == 0); // [A0]
- findConstructor(lookup2, p1_Type1, void.class); // [A1]
- findConstructor(lookup2, q1_Type1, void.class); // [A1]
- findConstructor(lookup2, Object.class, void.class); // [A1]
- findConstructorExpectingIAE(lookup, p2_Type2, void.class); // [A2]
- findConstructorExpectingIAE(lookup, q2_Type2, void.class); // [A2]
- findConstructorExpectingIAE(lookup2, x500NameClass, void.class, String.class); // [A2]
-
- /**
- * Teleport from MethodHandles.publicLookup() to lookup class in m2
- * has no module access [A0]
- * can access public types in packages exported by m2 and java.base [A1]
- * cannot access public types is non-exported packages or modules that m2 does
- * not read [A2]
- */
- lookup2 = lookup.in(q1_Type1);
- assertTrue((lookup2.lookupModes() & MODULE) == 0); // [A0]
- findConstructor(lookup2, q1_Type1, void.class); // [A1]
- findConstructor(lookup2, Object.class, void.class); // [A1]
- findConstructorExpectingIAE(lookup2, p1_Type1, void.class); // [A2]
- findConstructorExpectingIAE(lookup, q2_Type2, void.class); // [A2]
- findConstructorExpectingIAE(lookup2, x500NameClass, void.class, String.class); // [A2]
-
- /**
- * Teleport from MethodHandles.publicLookup() to lookup class that is not
- * in an exported package, should get no access [A0]
- */
- lookup2 = lookup.in(p2_Type2);
- assertTrue(lookup2.lookupModes() == 0); // [A0]
- findConstructorExpectingIAE(lookup, q2_Type2, void.class); // [A0]
+ public void testPublicLookup() throws Exception {
+ Lookup lookup = MethodHandles.publicLookup();
+ assertTrue(lookup.lookupModes() == (PUBLIC|UNCONDITIONAL)); // A0
+
+ // m1
+ findConstructor(lookup, p1_Type1, void.class);
+ findConstructorExpectingIAE(lookup, p2_Type2, void.class);
+
+ // m2
+ findConstructor(lookup, q1_Type1, void.class);
+ findConstructorExpectingIAE(lookup, q2_Type2, void.class);
+
+ // java.base
+ findConstructor(lookup, Object.class, void.class);
+ findConstructorExpectingIAE(lookup, x500NameClass, void.class, String.class);
+
+ // unnamed
+ findConstructor(lookup, unnamedClass, void.class);
+ }
+
+ /**
+ * Hop from publicLookup to accessible type in java.base
+ */
+ public void testPublicLookupToBaseModule() throws Exception {
+ Lookup lookup = MethodHandles.publicLookup().in(String.class);
+ assertTrue(lookup.lookupModes() == PUBLIC); // A0
+
+ // m1
+ findConstructorExpectingIAE(lookup, p1_Type1, void.class);
+ findConstructorExpectingIAE(lookup, p2_Type2, void.class);
+
+ // m2
+ findConstructorExpectingIAE(lookup, q1_Type1, void.class);
+ findConstructorExpectingIAE(lookup, q2_Type2, void.class);
+
+ // java.base
+ findConstructor(lookup, Object.class, void.class);
+ findConstructorExpectingIAE(lookup, x500NameClass, void.class, String.class);
+
+ // unnamed
+ findConstructorExpectingIAE(lookup, unnamedClass, void.class);
+ }
+
+
+ /**
+ * Hop from publicLookup to accessible type in named module.
+ *
+ * [A0] has PUBLIC access
+ */
+ public void testPublicLookupToAccessibleTypeInNamedModule() throws Exception {
+ Lookup lookup = MethodHandles.publicLookup().in(p1_Type1);
+ assertTrue(lookup.lookupModes() == PUBLIC); // A0
+
+ // m1
+ findConstructor(lookup, p1_Type1, void.class);
+ findConstructorExpectingIAE(lookup, p2_Type2, void.class);
+
+ // m2
+ findConstructor(lookup, q1_Type1, void.class);
+ findConstructorExpectingIAE(lookup, q2_Type2, void.class);
+
+ // java.base
+ findConstructor(lookup, Object.class, void.class);
+ findConstructorExpectingIAE(lookup, x500NameClass, void.class, String.class);
+
+ // unnamed
+ findConstructor(lookup, unnamedClass, void.class);
+ }
+
+ /**
+ * Teleport from publicLookup to inaccessible type in named module.
+ *
+ * [A0] has no access
+ */
+ public void testPublicLookupToInaccessibleTypeInNamedModule() throws Exception {
+ Lookup lookup = MethodHandles.publicLookup().in(p2_Type2);
+ assertTrue(lookup.lookupModes() == 0); // A0
+
+ // m1
+ findConstructorExpectingIAE(lookup, p1_Type1, void.class);
+ findConstructorExpectingIAE(lookup, p2_Type2, void.class);
+
+ // m2
+ findConstructorExpectingIAE(lookup, q1_Type1, void.class);
+ findConstructorExpectingIAE(lookup, q2_Type2, void.class);
+
+ // java.base
+ findConstructorExpectingIAE(lookup, Object.class, void.class);
+ findConstructorExpectingIAE(lookup, x500NameClass, void.class, String.class);
+
+ // unnamed
+ findConstructorExpectingIAE(lookup, unnamedClass, void.class);
+ }
+
+ /**
+ * Teleport from publicLookup to public type in unnamed module
+ *
+ * [A0] has PUBLIC access
+ */
+ public void testPublicLookupToUnnamedModule() throws Exception {
+ Lookup lookup = MethodHandles.publicLookup().in(unnamedClass);
+ assertTrue(lookup.lookupModes() == PUBLIC); // A0
+
+ // m1
+ findConstructor(lookup, p1_Type1, void.class);
+ findConstructorExpectingIAE(lookup, p2_Type2, void.class);
+
+ // m2
+ findConstructor(lookup, q1_Type1, void.class);
+ findConstructorExpectingIAE(lookup, q2_Type2, void.class);
+
+ // java.base
+ findConstructor(lookup, Object.class, void.class);
+ findConstructorExpectingIAE(lookup, x500NameClass, void.class, String.class);
+
+ // unnamed
+ findConstructor(lookup, unnamedClass, void.class);
}
/**
* Invokes Lookup findConstructor with a method type constructored from the
* given return and parameter types, expecting IllegalAccessException to be
* thrown.
*/
- static MethodHandle findConstructorExpectingIAE(Lookup lookup,
+ static void findConstructorExpectingIAE(Lookup lookup,
Class<?> clazz,
Class<?> rtype,
Class<?>... ptypes) throws Exception {
try {
findConstructor(lookup, clazz, rtype, ptypes);
- throw new RuntimeException("IllegalAccessError expected");
- } catch (IllegalAccessException expected) {
- return null;
- }
+ assertTrue(false);
+ } catch (IllegalAccessException expected) { }
}
/**
* Invokes Lookup findConstructor with a method type constructored from the
* given return and parameter types.
@@ -214,12 +362,6 @@
Class<?> rtype,
Class<?>... ptypes) throws Exception {
MethodType mt = MethodType.methodType(rtype, ptypes);
return lookup.findConstructor(clazz, mt);
}
-
- static void assertTrue(boolean condition) {
- if (!condition)
- throw new RuntimeException();
- }
-
}
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