1.1 --- a/test/compiler/jsr292/methodHandleExceptions/TestAMEnotNPE.java Fri Nov 22 13:42:46 2013 -0800
1.2 +++ b/test/compiler/jsr292/methodHandleExceptions/TestAMEnotNPE.java Tue Nov 26 18:16:04 2013 -0500
1.3 @@ -21,50 +21,127 @@
1.4 * questions.
1.5 *
1.6 */
1.7 -
1.8 import java.lang.reflect.InvocationTargetException;
1.9 +import java.lang.reflect.Method;
1.10 +import java.util.ArrayList;
1.11 +import java.util.List;
1.12 import jdk.internal.org.objectweb.asm.ClassWriter;
1.13 import jdk.internal.org.objectweb.asm.Handle;
1.14 import jdk.internal.org.objectweb.asm.MethodVisitor;
1.15 import jdk.internal.org.objectweb.asm.Opcodes;
1.16 +import p.Dok;
1.17
1.18 /**
1.19 - * @test
1.20 - * @bug 8025260
1.21 - * @summary Ensure that AbstractMethodError is thrown, not NullPointerException, through MethodHandles::jump_from_method_handle code path
1.22 + * @test @bug 8025260 8016839
1.23 + * @summary Ensure that AbstractMethodError and IllegalAccessError are thrown appropriately, not NullPointerException
1.24 *
1.25 - * @compile -XDignore.symbol.file ByteClassLoader.java I.java C.java TestAMEnotNPE.java
1.26 + * @compile -XDignore.symbol.file TestAMEnotNPE.java ByteClassLoader.java p/C.java p/Dok.java p/E.java p/F.java p/I.java p/Tdirect.java p/Treflect.java
1.27 + *
1.28 * @run main/othervm TestAMEnotNPE
1.29 + * @run main/othervm -Xint TestAMEnotNPE
1.30 + * @run main/othervm -Xcomp TestAMEnotNPE
1.31 */
1.32 -
1.33 public class TestAMEnotNPE implements Opcodes {
1.34
1.35 + static boolean writeJarFiles = false;
1.36 + static boolean readJarFiles = false;
1.37 +
1.38 /**
1.39 - * The bytes for D, a NOT abstract class extending abstract class C
1.40 - * without supplying an implementation for abstract method m.
1.41 - * There is a default method in the interface I, but it should lose to
1.42 - * the abstract class.
1.43 + * Optional command line parameter (any case-insensitive prefix of)
1.44 + * "writejarfiles" or "readjarfiles".
1.45 + *
1.46 + * "Writejarfiles" creates a jar file for each different set of tested classes.
1.47 + * "Readjarfiles" causes the classloader to use the copies of the classes
1.48 + * found in the corresponding jar files.
1.49 + *
1.50 + * Jarfilenames look something like pD_ext_pF (p.D extends p.F)
1.51 + * and qD_m_pp_imp_pI (q.D with package-private m implements p.I)
1.52 + *
1.53 + */
1.54 + public static void main(String args[]) throws Throwable {
1.55 + ArrayList<Throwable> lt = new ArrayList<Throwable>();
1.56
1.57 - class D extends C {
1.58 - D() { super(); }
1.59 - // does not define m
1.60 - }
1.61 + if (args.length > 0) {
1.62 + String a0 = args[0].toLowerCase();
1.63 + if (a0.length() > 0) {
1.64 + writeJarFiles = ("writejarfiles").startsWith(a0);
1.65 + readJarFiles = ("readjarfiles").startsWith(a0);
1.66 + }
1.67 + if (!(writeJarFiles || readJarFiles)) {
1.68 + throw new Error("Command line parameter (if any) should be prefix of writeJarFiles or readJarFiles");
1.69 + }
1.70 + }
1.71
1.72 + try {
1.73 + System.out.println("TRYING p.D.m PRIVATE interface-invoked as p.I.m, p.D extends p.F, p.F.m FINAL");
1.74 + tryAndCheckThrown(lt, bytesForDprivateSubWhat("p/F"),
1.75 + "p.D extends p.F (p.F implements p.I, FINAL public m), private m",
1.76 + IllegalAccessError.class, "pD_ext_pF");
1.77 + // We'll take either a VerifyError (pre 2013-11-30)
1.78 + // or an IllegalAccessError (post 2013-11-22)
1.79 + } catch (VerifyError ve) {
1.80 + System.out.println("Saw expected VerifyError " + ve);
1.81 + }
1.82 + System.out.println();
1.83 +
1.84 + System.out.println("TRYING p.D.m PRIVATE interface-invoked as p.I.m, p.D extends p.E");
1.85 + tryAndCheckThrown(lt, bytesForDprivateSubWhat("p/E"),
1.86 + "p.D extends p.E (p.E implements p.I, public m), private m",
1.87 + IllegalAccessError.class, "pD_ext_pE");
1.88 +
1.89 + System.out.println("TRYING p.D.m ABSTRACT interface-invoked as p.I.m");
1.90 + tryAndCheckThrown(lt, bytesForD(),
1.91 + "D extends abstract C, no m",
1.92 + AbstractMethodError.class, "pD_ext_pC");
1.93 +
1.94 + System.out.println("TRYING q.D.m PACKAGE interface-invoked as p.I.m");
1.95 + tryAndCheckThrown(lt, "q.D", bytesForDsomeAccess("q/D", 0),
1.96 + "q.D implements p.I, protected m", IllegalAccessError.class,
1.97 + "qD_m_pp_imp_pI");
1.98 +
1.99 + // Note jar file name is used in the plural-arg case.
1.100 + System.out.println("TRYING p.D.m PRIVATE interface-invoked as p.I.m");
1.101 + tryAndCheckThrown(lt, bytesForDsomeAccess("p/D", ACC_PRIVATE),
1.102 + "p.D implements p.I, private m",
1.103 + IllegalAccessError.class, "pD_m_pri_imp_pI");
1.104 +
1.105 + // Plural-arg test.
1.106 + System.out.println("TRYING p.D.m PRIVATE MANY ARG interface-invoked as p.I.m");
1.107 + tryAndCheckThrownMany(lt, bytesForDsomeAccess("p/D", ACC_PRIVATE),
1.108 + "p.D implements p.I, private m", IllegalAccessError.class);
1.109 +
1.110 + if (lt.size() > 0) {
1.111 + System.out.flush();
1.112 + Thread.sleep(250); // This de-interleaves output and error in Netbeans, sigh.
1.113 + for (Throwable th : lt)
1.114 + System.err.println(th);
1.115 + throw new Error("Test failed, there were " + lt.size() + " failures listed above");
1.116 + } else {
1.117 + System.out.println("ALL PASS, HOORAY!");
1.118 + }
1.119 + }
1.120 +
1.121 + /**
1.122 + * The bytes for D, a NOT abstract class extending abstract class C without
1.123 + * supplying an implementation for abstract method m. There is a default
1.124 + * method in the interface I, but it should lose to the abstract class.
1.125 + *
1.126 * @return
1.127 * @throws Exception
1.128 */
1.129 public static byte[] bytesForD() throws Exception {
1.130
1.131 - ClassWriter cw = new ClassWriter(ClassWriter.COMPUTE_FRAMES|ClassWriter.COMPUTE_MAXS);
1.132 + ClassWriter cw = new ClassWriter(ClassWriter.COMPUTE_FRAMES
1.133 + | ClassWriter.COMPUTE_MAXS);
1.134 MethodVisitor mv;
1.135
1.136 - cw.visit(V1_8, ACC_PUBLIC + ACC_SUPER, "D", null, "C", null);
1.137 + cw.visit(V1_8, ACC_PUBLIC + ACC_SUPER, "p/D", null, "p/C", null);
1.138
1.139 {
1.140 mv = cw.visitMethod(ACC_PUBLIC, "<init>", "()V", null, null);
1.141 mv.visitCode();
1.142 mv.visitVarInsn(ALOAD, 0);
1.143 - mv.visitMethodInsn(INVOKESPECIAL, "C", "<init>", "()V");
1.144 + mv.visitMethodInsn(INVOKESPECIAL, "p/C", "<init>", "()V");
1.145 mv.visitInsn(RETURN);
1.146 mv.visitMaxs(0, 0);
1.147 mv.visitEnd();
1.148 @@ -74,70 +151,346 @@
1.149 return cw.toByteArray();
1.150 }
1.151
1.152 + /**
1.153 + * The bytes for D, implements I, does not extend C, declares m()I with
1.154 + * access method_acc.
1.155 + *
1.156 + * @param d_name Name of class defined
1.157 + * @param method_acc Accessibility of that class's method m.
1.158 + * @return
1.159 + * @throws Exception
1.160 + */
1.161 + public static byte[] bytesForDsomeAccess(String d_name, int method_acc) throws Exception {
1.162 + return bytesForSomeDsubSomethingSomeAccess(d_name, "java/lang/Object", method_acc);
1.163 + }
1.164
1.165 /**
1.166 - * The bytecodes for an invokeExact of a particular methodHandle, I.m, invoked on a D
1.167 + * The bytes for D implements I, extends some class, declares m()I as
1.168 + * private.
1.169 + *
1.170 + * Invokeinterface of I.m applied to this D should throw IllegalAccessError
1.171 + *
1.172 + * @param sub_what The name of the class that D will extend.
1.173 + * @return
1.174 + * @throws Exception
1.175 + */
1.176 + public static byte[] bytesForDprivateSubWhat(String sub_what) throws Exception {
1.177 + return bytesForSomeDsubSomethingSomeAccess("p/D", sub_what, ACC_PRIVATE);
1.178 + }
1.179
1.180 - class T {
1.181 - T() { super(); } // boring constructor
1.182 - int test() {
1.183 - MethodHandle mh = `I.m():int`;
1.184 - D d = new D();
1.185 - return mh.invokeExact(d); // Should explode here, AbstractMethodError
1.186 - }
1.187 + /**
1.188 + * Returns the bytes for a class with name d_name (presumably "D" in some
1.189 + * package), extending some class with name sub_what, implementing p.I,
1.190 + * and defining two methods m() and m(11args) with access method_acc.
1.191 + *
1.192 + * @param d_name Name of class that is defined
1.193 + * @param sub_what Name of class that it extends
1.194 + * @param method_acc Accessibility of method(s) m in defined class.
1.195 + * @return
1.196 + * @throws Exception
1.197 + */
1.198 + public static byte[] bytesForSomeDsubSomethingSomeAccess
1.199 + (String d_name, String sub_what, int method_acc)
1.200 + throws Exception {
1.201 +
1.202 + ClassWriter cw = new ClassWriter(ClassWriter.COMPUTE_FRAMES
1.203 + | ClassWriter.COMPUTE_MAXS);
1.204 + MethodVisitor mv;
1.205 + String[] interfaces = {"p/I"};
1.206 +
1.207 + cw.visit(V1_8, ACC_PUBLIC + ACC_SUPER, d_name, null, sub_what, interfaces);
1.208 + {
1.209 + mv = cw.visitMethod(ACC_PUBLIC, "<init>", "()V", null, null);
1.210 + mv.visitCode();
1.211 + mv.visitVarInsn(ALOAD, 0);
1.212 + mv.visitMethodInsn(INVOKESPECIAL, sub_what, "<init>", "()V");
1.213 + mv.visitInsn(RETURN);
1.214 + mv.visitMaxs(0, 0);
1.215 + mv.visitEnd();
1.216 }
1.217 + // int m() {return 3;}
1.218 + {
1.219 + mv = cw.visitMethod(method_acc, "m", "()I", null, null);
1.220 + mv.visitCode();
1.221 + mv.visitLdcInsn(new Integer(3));
1.222 + mv.visitInsn(IRETURN);
1.223 + mv.visitMaxs(0, 0);
1.224 + mv.visitEnd();
1.225 + }
1.226 + // int m(11args) {return 3;}
1.227 + {
1.228 + mv = cw.visitMethod(method_acc, "m", "(BCSIJ"
1.229 + + "Ljava/lang/Object;"
1.230 + + "Ljava/lang/Object;"
1.231 + + "Ljava/lang/Object;"
1.232 + + "Ljava/lang/Object;"
1.233 + + "Ljava/lang/Object;"
1.234 + + "Ljava/lang/Object;"
1.235 + + ")I", null, null);
1.236 + mv.visitCode();
1.237 + mv.visitLdcInsn(new Integer(3));
1.238 + mv.visitInsn(IRETURN);
1.239 + mv.visitMaxs(0, 0);
1.240 + mv.visitEnd();
1.241 + }
1.242 + cw.visitEnd();
1.243 + return cw.toByteArray();
1.244 + }
1.245
1.246 + /**
1.247 + * The bytecodes for a class p/T defining a methods test() and test(11args)
1.248 + * that contain an invokeExact of a particular methodHandle, I.m.
1.249 + *
1.250 + * Test will be passed values that may imperfectly implement I,
1.251 + * and thus may in turn throw exceptions.
1.252 + *
1.253 * @return
1.254 * @throws Exception
1.255 */
1.256 public static byte[] bytesForT() throws Exception {
1.257
1.258 - ClassWriter cw = new ClassWriter(ClassWriter.COMPUTE_FRAMES|ClassWriter.COMPUTE_MAXS);
1.259 + ClassWriter cw = new ClassWriter(ClassWriter.COMPUTE_FRAMES
1.260 + | ClassWriter.COMPUTE_MAXS);
1.261 MethodVisitor mv;
1.262
1.263 - cw.visit(V1_8, ACC_PUBLIC + ACC_SUPER, "T", null, "java/lang/Object", null);
1.264 + cw.visit(V1_8, ACC_PUBLIC + ACC_SUPER, "p/T", null, "java/lang/Object", null);
1.265 {
1.266 mv = cw.visitMethod(ACC_PUBLIC, "<init>", "()V", null, null);
1.267 mv.visitCode();
1.268 mv.visitVarInsn(ALOAD, 0);
1.269 mv.visitMethodInsn(INVOKESPECIAL, "java/lang/Object", "<init>", "()V");
1.270 mv.visitInsn(RETURN);
1.271 - mv.visitMaxs(0,0);
1.272 + mv.visitMaxs(0, 0);
1.273 mv.visitEnd();
1.274 }
1.275 + // static int test(I)
1.276 {
1.277 - mv = cw.visitMethod(ACC_PUBLIC + ACC_STATIC, "test", "()I", null, null);
1.278 + mv = cw.visitMethod(ACC_PUBLIC + ACC_STATIC, "test", "(Lp/I;)I", null, null);
1.279 mv.visitCode();
1.280 - mv.visitLdcInsn(new Handle(Opcodes.H_INVOKEINTERFACE, "I", "m", "()I"));
1.281 - mv.visitTypeInsn(NEW, "D");
1.282 - mv.visitInsn(DUP);
1.283 - mv.visitMethodInsn(INVOKESPECIAL, "D", "<init>", "()V");
1.284 - mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/invoke/MethodHandle", "invokeExact", "(LI;)I");
1.285 + mv.visitLdcInsn(new Handle(Opcodes.H_INVOKEINTERFACE, "p/I", "m", "()I"));
1.286 + mv.visitVarInsn(ALOAD, 0);
1.287 + mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/invoke/MethodHandle",
1.288 + "invokeExact", "(Lp/I;)I");
1.289 mv.visitInsn(IRETURN);
1.290 - mv.visitMaxs(0,0);
1.291 + mv.visitMaxs(0, 0);
1.292 + mv.visitEnd();
1.293 + }
1.294 + // static int test(I,11args)
1.295 + {
1.296 + mv = cw.visitMethod(ACC_PUBLIC + ACC_STATIC, "test", "(Lp/I;BCSIJLjava/lang/Object;Ljava/lang/Object;Ljava/lang/Object;Ljava/lang/Object;Ljava/lang/Object;Ljava/lang/Object;)I", null, null);
1.297 + mv.visitCode();
1.298 + mv.visitLdcInsn(new Handle(Opcodes.H_INVOKEINTERFACE, "p/I", "m", "(BCSIJLjava/lang/Object;Ljava/lang/Object;Ljava/lang/Object;Ljava/lang/Object;Ljava/lang/Object;Ljava/lang/Object;)I"));
1.299 + mv.visitVarInsn(ALOAD, 0);
1.300 + mv.visitVarInsn(ILOAD, 1);
1.301 + mv.visitVarInsn(ILOAD, 2);
1.302 + mv.visitVarInsn(ILOAD, 3);
1.303 + mv.visitVarInsn(ILOAD, 4);
1.304 + mv.visitVarInsn(LLOAD, 5);
1.305 + mv.visitVarInsn(ALOAD, 7);
1.306 + mv.visitVarInsn(ALOAD, 8);
1.307 + mv.visitVarInsn(ALOAD, 9);
1.308 + mv.visitVarInsn(ALOAD, 10);
1.309 + mv.visitVarInsn(ALOAD, 11);
1.310 + mv.visitVarInsn(ALOAD, 12);
1.311 + mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/invoke/MethodHandle",
1.312 + "invokeExact", "(Lp/I;BCSIJLjava/lang/Object;Ljava/lang/Object;Ljava/lang/Object;Ljava/lang/Object;Ljava/lang/Object;Ljava/lang/Object;)I");
1.313 + mv.visitInsn(IRETURN);
1.314 + mv.visitMaxs(0, 0);
1.315 mv.visitEnd();
1.316 }
1.317 cw.visitEnd();
1.318 return cw.toByteArray();
1.319 }
1.320
1.321 - public static void main(String args[] ) throws Throwable {
1.322 - ByteClassLoader bcl = new ByteClassLoader();
1.323 - Class<?> d = bcl.loadBytes("D", bytesForD());
1.324 - Class<?> t = bcl.loadBytes("T", bytesForT());
1.325 + private static void tryAndCheckThrown(
1.326 + List<Throwable> lt, byte[] dBytes, String what, Class<?> expected, String jar_name)
1.327 + throws Throwable {
1.328 + tryAndCheckThrown(lt, "p.D", dBytes, what, expected, jar_name);
1.329 + }
1.330 +
1.331 + private static void tryAndCheckThrown(List<Throwable> lt, String d_name, byte[] dBytes, String what, Class<?> expected, String jar_name)
1.332 + throws Throwable {
1.333 +
1.334 + System.out.println("Methodhandle invokeExact I.m() for instance of " + what);
1.335 + ByteClassLoader bcl1 = new ByteClassLoader(jar_name, readJarFiles, writeJarFiles);
1.336 try {
1.337 - Object result = t.getMethod("test").invoke(null);
1.338 - System.out.println("Expected AbstractMethodError wrapped in InvocationTargetException, saw no exception");
1.339 - throw new Error("Missing expected exception");
1.340 + Class<?> d1 = bcl1.loadBytes(d_name, dBytes);
1.341 + Class<?> t1 = bcl1.loadBytes("p.T", bytesForT());
1.342 + invokeTest(t1, d1, expected, lt);
1.343 + } finally {
1.344 + // Not necessary for others -- all class files are written in this call.
1.345 + // (unless the VM crashes first).
1.346 + bcl1.close();
1.347 + }
1.348 +
1.349 + System.out.println("Reflection invoke I.m() for instance of " + what);
1.350 + ByteClassLoader bcl3 = new ByteClassLoader(jar_name, readJarFiles, false);
1.351 + Class<?> d3 = bcl3.loadBytes(d_name, dBytes);
1.352 + Class<?> t3 = bcl3.loadClass("p.Treflect");
1.353 + invokeTest(t3, d3, expected, lt);
1.354 +
1.355 + System.out.println("Bytecode invokeInterface I.m() for instance of " + what);
1.356 + ByteClassLoader bcl2 = new ByteClassLoader(jar_name, readJarFiles, false);
1.357 + Class<?> d2 = bcl2.loadBytes(d_name, dBytes);
1.358 + Class<?> t2 = bcl2.loadClass("p.Tdirect");
1.359 + badGoodBadGood(t2, d2, expected, lt);
1.360 + }
1.361 +
1.362 + private static void invokeTest(Class<?> t, Class<?> d, Class<?> expected, List<Throwable> lt)
1.363 + throws Throwable {
1.364 + try {
1.365 + Method m = t.getMethod("test", p.I.class);
1.366 + Object o = d.newInstance();
1.367 + Object result = m.invoke(null, o);
1.368 + if (expected != null) {
1.369 + System.out.println("FAIL, Expected " + expected.getName()
1.370 + + " wrapped in InvocationTargetException, but nothing was thrown");
1.371 + lt.add(new Error("Exception " + expected.getName() + " was not thrown"));
1.372 + } else {
1.373 + System.out.println("PASS, saw expected return.");
1.374 + }
1.375 } catch (InvocationTargetException e) {
1.376 Throwable th = e.getCause();
1.377 - if (th instanceof AbstractMethodError) {
1.378 - th.printStackTrace(System.out);
1.379 - System.out.println("PASS, saw expected exception (AbstractMethodError, wrapped in InvocationTargetException).");
1.380 + th.printStackTrace(System.out);
1.381 + if (expected != null) {
1.382 + if (expected.isInstance(th)) {
1.383 + System.out.println("PASS, saw expected exception (" + expected.getName() + ").");
1.384 + } else {
1.385 + System.out.println("FAIL, Expected " + expected.getName()
1.386 + + " wrapped in InvocationTargetException, saw " + th);
1.387 + lt.add(th);
1.388 + }
1.389 } else {
1.390 - System.out.println("Expected AbstractMethodError wrapped in InvocationTargetException, saw " + th);
1.391 - throw th;
1.392 + System.out.println("FAIL, expected no exception, saw " + th);
1.393 + lt.add(th);
1.394 }
1.395 }
1.396 + System.out.println();
1.397 + }
1.398 +
1.399 + /* Many-arg versions of above */
1.400 + private static void tryAndCheckThrownMany(List<Throwable> lt, byte[] dBytes, String what, Class<?> expected)
1.401 + throws Throwable {
1.402 +
1.403 + System.out.println("Methodhandle invokeExact I.m(11params) for instance of " + what);
1.404 + ByteClassLoader bcl1 = new ByteClassLoader("p.D", readJarFiles, false);
1.405 + try {
1.406 + Class<?> d1 = bcl1.loadBytes("p.D", dBytes);
1.407 + Class<?> t1 = bcl1.loadBytes("p.T", bytesForT());
1.408 + invokeTestMany(t1, d1, expected, lt);
1.409 + } finally {
1.410 + bcl1.close(); // Not necessary for others -- all class files are written in this call.
1.411 + }
1.412 +
1.413 + {
1.414 + System.out.println("Bytecode invokeInterface I.m(11params) for instance of " + what);
1.415 + ByteClassLoader bcl2 = new ByteClassLoader("pD_m_pri_imp_pI", readJarFiles, false);
1.416 + Class<?> d2 = bcl2.loadBytes("p.D", dBytes);
1.417 + Class<?> t2 = bcl2.loadClass("p.Tdirect");
1.418 + badGoodBadGoodMany(t2, d2, expected, lt);
1.419 +
1.420 + }
1.421 + {
1.422 + System.out.println("Reflection invokeInterface I.m(11params) for instance of " + what);
1.423 + ByteClassLoader bcl2 = new ByteClassLoader("pD_m_pri_imp_pI", readJarFiles, false);
1.424 + Class<?> d2 = bcl2.loadBytes("p.D", dBytes);
1.425 + Class<?> t2 = bcl2.loadClass("p.Treflect");
1.426 + invokeTestMany(t2, d2, expected, lt);
1.427 + }
1.428 + }
1.429 +
1.430 + private static void invokeTestMany(Class<?> t, Class<?> d, Class<?> expected, List<Throwable> lt)
1.431 + throws Throwable {
1.432 + try {
1.433 + Method m = t.getMethod("test", p.I.class,
1.434 + Byte.TYPE, Character.TYPE, Short.TYPE, Integer.TYPE, Long.TYPE,
1.435 + Object.class, Object.class, Object.class,
1.436 + Object.class, Object.class, Object.class);
1.437 + Object o = d.newInstance();
1.438 + Byte b = 1;
1.439 + Character c = 2;
1.440 + Short s = 3;
1.441 + Integer i = 4;
1.442 + Long j = 5L;
1.443 + Object o1 = b;
1.444 + Object o2 = c;
1.445 + Object o3 = s;
1.446 + Object o4 = i;
1.447 + Object o5 = j;
1.448 + Object o6 = "6";
1.449 +
1.450 + Object result = m.invoke(null, o, b, c, s, i, j,
1.451 + o1, o2, o3, o4, o5, o6);
1.452 + if (expected != null) {
1.453 + System.out.println("FAIL, Expected " + expected.getName()
1.454 + + " wrapped in InvocationTargetException, but nothing was thrown");
1.455 + lt.add(new Error("Exception " + expected.getName()
1.456 + + " was not thrown"));
1.457 + } else {
1.458 + System.out.println("PASS, saw expected return.");
1.459 + }
1.460 + } catch (InvocationTargetException e) {
1.461 + Throwable th = e.getCause();
1.462 + th.printStackTrace(System.out);
1.463 + if (expected != null) {
1.464 + if (expected.isInstance(th)) {
1.465 + System.out.println("PASS, saw expected exception ("
1.466 + + expected.getName() + ").");
1.467 + } else {
1.468 + System.out.println("FAIL, Expected " + expected.getName()
1.469 + + " wrapped in InvocationTargetException, saw " + th);
1.470 + lt.add(th);
1.471 + }
1.472 + } else {
1.473 + System.out.println("FAIL, expected no exception, saw " + th);
1.474 + lt.add(th);
1.475 + }
1.476 + }
1.477 + System.out.println();
1.478 + }
1.479 +
1.480 + /**
1.481 + * This tests a peculiar idiom for tickling the bug on older VMs that lack
1.482 + * methodhandles. The bug (if not fixed) acts in the following way:
1.483 + *
1.484 + * When a broken receiver is passed to the first execution of an invokeinterface
1.485 + * bytecode, the illegal access is detected before the effects of resolution are
1.486 + * cached for later use, and so repeated calls with a broken receiver will always
1.487 + * throw the correct error.
1.488 + *
1.489 + * If, however, a good receiver is passed to the invokeinterface, the effects of
1.490 + * resolution will be successfully cached. A subsequent execution with a broken
1.491 + * receiver will reuse the cached information, skip the detailed resolution work,
1.492 + * and instead encounter a null pointer. By convention, that is the encoding for a
1.493 + * missing abstract method, and an AbstractMethodError is thrown -- not the expected
1.494 + * IllegalAccessError.
1.495 + *
1.496 + * @param t2 Test invocation class
1.497 + * @param d2 Test receiver class
1.498 + * @param expected expected exception type
1.499 + * @param lt list of unexpected throwables seen
1.500 + */
1.501 + private static void badGoodBadGood(Class<?> t2, Class<?> d2, Class<?> expected, List<Throwable> lt)
1.502 + throws Throwable {
1.503 + System.out.println(" Error input 1st time");
1.504 + invokeTest(t2, d2, expected, lt);
1.505 + System.out.println(" Good input (instance of Dok)");
1.506 + invokeTest(t2, Dok.class, null, lt);
1.507 + System.out.println(" Error input 2nd time");
1.508 + invokeTest(t2, d2, expected, lt);
1.509 + System.out.println(" Good input (instance of Dok)");
1.510 + invokeTest(t2, Dok.class, null, lt);
1.511 + }
1.512 +
1.513 + private static void badGoodBadGoodMany(Class<?> t2, Class<?> d2, Class<?> expected, List<Throwable> lt)
1.514 + throws Throwable {
1.515 + System.out.println(" Error input 1st time");
1.516 + invokeTestMany(t2, d2, expected, lt);
1.517 + System.out.println(" Good input (instance of Dok)");
1.518 + invokeTestMany(t2, Dok.class, null, lt);
1.519 + System.out.println(" Error input 2nd time");
1.520 + invokeTestMany(t2, d2, expected, lt);
1.521 + System.out.println(" Good input (instance of Dok)");
1.522 + invokeTestMany(t2, Dok.class, null, lt);
1.523 }
1.524 }
