JavaDocExamplesTest.java revision 4251:f09930d526ba
1/* 2 * Copyright (c) 2009, 2011, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. Oracle designates this 8 * particular file as subject to the "Classpath" exception as provided 9 * by Oracle in the LICENSE file that accompanied this code. 10 * 11 * This code is distributed in the hope that it will be useful, but WITHOUT 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 14 * version 2 for more details (a copy is included in the LICENSE file that 15 * accompanied this code). 16 * 17 * You should have received a copy of the GNU General Public License version 18 * 2 along with this work; if not, write to the Free Software Foundation, 19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 20 * 21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 22 * or visit www.oracle.com if you need additional information or have any 23 * questions. 24 */ 25 26/* @test 27 * @summary example code used in javadoc for java.lang.invoke API 28 * @compile JavaDocExamplesTest.java 29 * @run junit/othervm test.java.lang.invoke.JavaDocExamplesTest 30 */ 31 32/* 33---- To run outside jtreg: 34$ $JAVA7X_HOME/bin/javac -cp $JUNIT4_JAR -d /tmp/Classes \ 35 $DAVINCI/sources/jdk/test/java/lang/invoke/JavaDocExamplesTest.java 36$ $JAVA7X_HOME/bin/java -cp $JUNIT4_JAR:/tmp/Classes \ 37 -DJavaDocExamplesTest.verbosity=1 \ 38 test.java.lang.invoke.JavaDocExamplesTest 39---- 40*/ 41 42package test.java.lang.invoke; 43 44import java.lang.invoke.*; 45import static java.lang.invoke.MethodHandles.*; 46import static java.lang.invoke.MethodType.*; 47 48import java.util.*; 49 50import org.junit.*; 51import static org.junit.Assert.*; 52 53 54/** 55 * @author jrose 56 */ 57public class JavaDocExamplesTest { 58 /** Wrapper for running the JUnit tests in this module. 59 * Put JUnit on the classpath! 60 */ 61 public static void main(String... ignore) throws Throwable { 62 System.out.println("can run this as:"); 63 System.out.println("$ java org.junit.runner.JUnitCore "+JavaDocExamplesTest.class.getName()); 64 new JavaDocExamplesTest().run(); 65 } 66 public void run() throws Throwable { 67 testFindVirtual(); 68 testPermuteArguments(); 69 testDropArguments(); 70 testFilterArguments(); 71 testFoldArguments(); 72 testMethodHandlesSummary(); 73 testAsSpreader(); 74 testAsCollector(); 75 testAsVarargsCollector(); 76 testAsFixedArity(); 77 testAsTypeCornerCases(); 78 testMutableCallSite(); 79 } 80 // How much output? 81 static final Class<?> THIS_CLASS = JavaDocExamplesTest.class; 82 static int verbosity = Integer.getInteger(THIS_CLASS.getSimpleName()+".verbosity", 0); 83 84 85{} 86static final private Lookup LOOKUP = lookup(); 87// static final private MethodHandle CONCAT_1 = LOOKUP.findVirtual(String.class, 88// "concat", methodType(String.class, String.class)); 89// static final private MethodHandle HASHCODE_1 = LOOKUP.findVirtual(Object.class, 90// "hashCode", methodType(int.class)); 91 92// form required if ReflectiveOperationException is intercepted: 93 static final private MethodHandle CONCAT_2, HASHCODE_2, ADD_2, SUB_2; 94static { 95 try { 96 Class<?> THIS_CLASS = LOOKUP.lookupClass(); 97 CONCAT_2 = LOOKUP.findVirtual(String.class, 98 "concat", methodType(String.class, String.class)); 99 HASHCODE_2 = LOOKUP.findVirtual(Object.class, 100 "hashCode", methodType(int.class)); 101 ADD_2 = LOOKUP.findStatic(THIS_CLASS, "add", methodType(int.class, int.class, int.class)); 102 SUB_2 = LOOKUP.findStatic(THIS_CLASS, "sub", methodType(int.class, int.class, int.class)); 103 } catch (ReflectiveOperationException ex) { 104 throw new RuntimeException(ex); 105 } 106} 107 static int add(int x, int y) { return x + y; } 108 static int sub(int x, int y) { return x - y; } 109 110{} 111 112 @Test public void testFindVirtual() throws Throwable { 113{} 114MethodHandle CONCAT_3 = LOOKUP.findVirtual(String.class, 115 "concat", methodType(String.class, String.class)); 116MethodHandle HASHCODE_3 = LOOKUP.findVirtual(Object.class, 117 "hashCode", methodType(int.class)); 118//assertEquals("xy", (String) CONCAT_1.invokeExact("x", "y")); 119assertEquals("xy", (String) CONCAT_2.invokeExact("x", "y")); 120assertEquals("xy", (String) CONCAT_3.invokeExact("x", "y")); 121//assertEquals("xy".hashCode(), (int) HASHCODE_1.invokeExact((Object)"xy")); 122assertEquals("xy".hashCode(), (int) HASHCODE_2.invokeExact((Object)"xy")); 123assertEquals("xy".hashCode(), (int) HASHCODE_3.invokeExact((Object)"xy")); 124{} 125 } 126 127 @Test public void testPermuteArguments() throws Throwable { 128 {{ 129{} /// JAVADOC 130MethodType intfn1 = methodType(int.class, int.class); 131MethodType intfn2 = methodType(int.class, int.class, int.class); 132MethodHandle sub = SUB_2;// ... {int x, int y => x-y} ...; 133assert(sub.type().equals(intfn2)); 134MethodHandle sub1 = permuteArguments(sub, intfn2, 0, 1); 135MethodHandle rsub = permuteArguments(sub, intfn2, 1, 0); 136assert((int)rsub.invokeExact(1, 100) == 99); 137MethodHandle add = ADD_2;// ... {int x, int y => x+y} ...; 138assert(add.type().equals(intfn2)); 139MethodHandle twice = permuteArguments(add, intfn1, 0, 0); 140assert(twice.type().equals(intfn1)); 141assert((int)twice.invokeExact(21) == 42); 142 }} 143 {{ 144{} /// JAVADOC 145MethodHandle cat = lookup().findVirtual(String.class, 146 "concat", methodType(String.class, String.class)); 147assertEquals("xy", (String) cat.invokeExact("x", "y")); 148MethodHandle d0 = dropArguments(cat, 0, String.class); 149assertEquals("yz", (String) d0.invokeExact("x", "y", "z")); 150MethodHandle d1 = dropArguments(cat, 1, String.class); 151assertEquals("xz", (String) d1.invokeExact("x", "y", "z")); 152MethodHandle d2 = dropArguments(cat, 2, String.class); 153assertEquals("xy", (String) d2.invokeExact("x", "y", "z")); 154MethodHandle d12 = dropArguments(cat, 1, int.class, boolean.class); 155assertEquals("xz", (String) d12.invokeExact("x", 12, true, "z")); 156 }} 157 } 158 159 @Test public void testDropArguments() throws Throwable { 160 {{ 161{} /// JAVADOC 162MethodHandle cat = lookup().findVirtual(String.class, 163 "concat", methodType(String.class, String.class)); 164assertEquals("xy", (String) cat.invokeExact("x", "y")); 165MethodType bigType = cat.type().insertParameterTypes(0, int.class, String.class); 166MethodHandle d0 = dropArguments(cat, 0, bigType.parameterList().subList(0,2)); 167assertEquals(bigType, d0.type()); 168assertEquals("yz", (String) d0.invokeExact(123, "x", "y", "z")); 169 }} 170 {{ 171{} /// JAVADOC 172MethodHandle cat = lookup().findVirtual(String.class, 173 "concat", methodType(String.class, String.class)); 174assertEquals("xy", (String) cat.invokeExact("x", "y")); 175MethodHandle d0 = dropArguments(cat, 0, String.class); 176assertEquals("yz", (String) d0.invokeExact("x", "y", "z")); 177MethodHandle d1 = dropArguments(cat, 1, String.class); 178assertEquals("xz", (String) d1.invokeExact("x", "y", "z")); 179MethodHandle d2 = dropArguments(cat, 2, String.class); 180assertEquals("xy", (String) d2.invokeExact("x", "y", "z")); 181MethodHandle d12 = dropArguments(cat, 1, int.class, boolean.class); 182assertEquals("xz", (String) d12.invokeExact("x", 12, true, "z")); 183 }} 184 } 185 186 @Test public void testFilterArguments() throws Throwable { 187 {{ 188{} /// JAVADOC 189MethodHandle cat = lookup().findVirtual(String.class, 190 "concat", methodType(String.class, String.class)); 191MethodHandle upcase = lookup().findVirtual(String.class, 192 "toUpperCase", methodType(String.class)); 193assertEquals("xy", (String) cat.invokeExact("x", "y")); 194MethodHandle f0 = filterArguments(cat, 0, upcase); 195assertEquals("Xy", (String) f0.invokeExact("x", "y")); // Xy 196MethodHandle f1 = filterArguments(cat, 1, upcase); 197assertEquals("xY", (String) f1.invokeExact("x", "y")); // xY 198MethodHandle f2 = filterArguments(cat, 0, upcase, upcase); 199assertEquals("XY", (String) f2.invokeExact("x", "y")); // XY 200 }} 201 } 202 203 @Test public void testFoldArguments() throws Throwable { 204 {{ 205{} /// JAVADOC 206MethodHandle trace = publicLookup().findVirtual(java.io.PrintStream.class, 207 "println", methodType(void.class, String.class)) 208 .bindTo(System.out); 209MethodHandle cat = lookup().findVirtual(String.class, 210 "concat", methodType(String.class, String.class)); 211assertEquals("boojum", (String) cat.invokeExact("boo", "jum")); 212MethodHandle catTrace = foldArguments(cat, trace); 213// also prints "boo": 214assertEquals("boojum", (String) catTrace.invokeExact("boo", "jum")); 215 }} 216 } 217 218 static void assertEquals(Object exp, Object act) { 219 if (verbosity > 0) 220 System.out.println("result: "+act); 221 Assert.assertEquals(exp, act); 222 } 223 224 @Test public void testMethodHandlesSummary() throws Throwable { 225 {{ 226{} /// JAVADOC 227Object x, y; String s; int i; 228MethodType mt; MethodHandle mh; 229MethodHandles.Lookup lookup = MethodHandles.lookup(); 230// mt is (char,char)String 231mt = MethodType.methodType(String.class, char.class, char.class); 232mh = lookup.findVirtual(String.class, "replace", mt); 233s = (String) mh.invokeExact("daddy",'d','n'); 234// invokeExact(Ljava/lang/String;CC)Ljava/lang/String; 235assertEquals(s, "nanny"); 236// weakly typed invocation (using MHs.invoke) 237s = (String) mh.invokeWithArguments("sappy", 'p', 'v'); 238assertEquals(s, "savvy"); 239// mt is (Object[])List 240mt = MethodType.methodType(java.util.List.class, Object[].class); 241mh = lookup.findStatic(java.util.Arrays.class, "asList", mt); 242assert(mh.isVarargsCollector()); 243x = mh.invoke("one", "two"); 244// invoke(Ljava/lang/String;Ljava/lang/String;)Ljava/lang/Object; 245assertEquals(x, java.util.Arrays.asList("one","two")); 246// mt is (Object,Object,Object)Object 247mt = MethodType.genericMethodType(3); 248mh = mh.asType(mt); 249x = mh.invokeExact((Object)1, (Object)2, (Object)3); 250// invokeExact(Ljava/lang/Object;Ljava/lang/Object;Ljava/lang/Object;)Ljava/lang/Object; 251assertEquals(x, java.util.Arrays.asList(1,2,3)); 252// mt is ()int 253mt = MethodType.methodType(int.class); 254mh = lookup.findVirtual(java.util.List.class, "size", mt); 255i = (int) mh.invokeExact(java.util.Arrays.asList(1,2,3)); 256// invokeExact(Ljava/util/List;)I 257assert(i == 3); 258mt = MethodType.methodType(void.class, String.class); 259mh = lookup.findVirtual(java.io.PrintStream.class, "println", mt); 260mh.invokeExact(System.out, "Hello, world."); 261// invokeExact(Ljava/io/PrintStream;Ljava/lang/String;)V 262{} 263 }} 264 } 265 266 @Test public void testAsSpreader() throws Throwable { 267 {{ 268{} /// JAVADOC 269MethodHandle equals = publicLookup() 270 .findVirtual(String.class, "equals", methodType(boolean.class, Object.class)); 271assert( (boolean) equals.invokeExact("me", (Object)"me")); 272assert(!(boolean) equals.invokeExact("me", (Object)"thee")); 273// spread both arguments from a 2-array: 274MethodHandle eq2 = equals.asSpreader(Object[].class, 2); 275assert( (boolean) eq2.invokeExact(new Object[]{ "me", "me" })); 276assert(!(boolean) eq2.invokeExact(new Object[]{ "me", "thee" })); 277// spread both arguments from a String array: 278MethodHandle eq2s = equals.asSpreader(String[].class, 2); 279assert( (boolean) eq2s.invokeExact(new String[]{ "me", "me" })); 280assert(!(boolean) eq2s.invokeExact(new String[]{ "me", "thee" })); 281// spread second arguments from a 1-array: 282MethodHandle eq1 = equals.asSpreader(Object[].class, 1); 283assert( (boolean) eq1.invokeExact("me", new Object[]{ "me" })); 284assert(!(boolean) eq1.invokeExact("me", new Object[]{ "thee" })); 285// spread no arguments from a 0-array or null: 286MethodHandle eq0 = equals.asSpreader(Object[].class, 0); 287assert( (boolean) eq0.invokeExact("me", (Object)"me", new Object[0])); 288assert(!(boolean) eq0.invokeExact("me", (Object)"thee", (Object[])null)); 289// asSpreader and asCollector are approximate inverses: 290for (int n = 0; n <= 2; n++) { 291 for (Class<?> a : new Class<?>[]{Object[].class, String[].class, CharSequence[].class}) { 292 MethodHandle equals2 = equals.asSpreader(a, n).asCollector(a, n); 293 assert( (boolean) equals2.invokeWithArguments("me", "me")); 294 assert(!(boolean) equals2.invokeWithArguments("me", "thee")); 295 } 296} 297MethodHandle caToString = publicLookup() 298 .findStatic(Arrays.class, "toString", methodType(String.class, char[].class)); 299assertEquals("[A, B, C]", (String) caToString.invokeExact("ABC".toCharArray())); 300MethodHandle caString3 = caToString.asCollector(char[].class, 3); 301assertEquals("[A, B, C]", (String) caString3.invokeExact('A', 'B', 'C')); 302MethodHandle caToString2 = caString3.asSpreader(char[].class, 2); 303assertEquals("[A, B, C]", (String) caToString2.invokeExact('A', "BC".toCharArray())); 304 }} 305 } 306 307 @Test public void testAsCollector() throws Throwable { 308 {{ 309{} /// JAVADOC 310MethodHandle deepToString = publicLookup() 311 .findStatic(Arrays.class, "deepToString", methodType(String.class, Object[].class)); 312assertEquals("[won]", (String) deepToString.invokeExact(new Object[]{"won"})); 313MethodHandle ts1 = deepToString.asCollector(Object[].class, 1); 314assertEquals(methodType(String.class, Object.class), ts1.type()); 315//assertEquals("[won]", (String) ts1.invokeExact( new Object[]{"won"})); //FAIL 316assertEquals("[[won]]", (String) ts1.invokeExact((Object) new Object[]{"won"})); 317// arrayType can be a subtype of Object[] 318MethodHandle ts2 = deepToString.asCollector(String[].class, 2); 319assertEquals(methodType(String.class, String.class, String.class), ts2.type()); 320assertEquals("[two, too]", (String) ts2.invokeExact("two", "too")); 321MethodHandle ts0 = deepToString.asCollector(Object[].class, 0); 322assertEquals("[]", (String) ts0.invokeExact()); 323// collectors can be nested, Lisp-style 324MethodHandle ts22 = deepToString.asCollector(Object[].class, 3).asCollector(String[].class, 2); 325assertEquals("[A, B, [C, D]]", ((String) ts22.invokeExact((Object)'A', (Object)"B", "C", "D"))); 326// arrayType can be any primitive array type 327MethodHandle bytesToString = publicLookup() 328 .findStatic(Arrays.class, "toString", methodType(String.class, byte[].class)) 329 .asCollector(byte[].class, 3); 330assertEquals("[1, 2, 3]", (String) bytesToString.invokeExact((byte)1, (byte)2, (byte)3)); 331MethodHandle longsToString = publicLookup() 332 .findStatic(Arrays.class, "toString", methodType(String.class, long[].class)) 333 .asCollector(long[].class, 1); 334assertEquals("[123]", (String) longsToString.invokeExact((long)123)); 335 }} 336 } 337 338 @Test public void testAsVarargsCollector() throws Throwable { 339 {{ 340{} /// JAVADOC 341MethodHandle deepToString = publicLookup() 342 .findStatic(Arrays.class, "deepToString", methodType(String.class, Object[].class)); 343MethodHandle ts1 = deepToString.asVarargsCollector(Object[].class); 344assertEquals("[won]", (String) ts1.invokeExact( new Object[]{"won"})); 345assertEquals("[won]", (String) ts1.invoke( new Object[]{"won"})); 346assertEquals("[won]", (String) ts1.invoke( "won" )); 347assertEquals("[[won]]", (String) ts1.invoke((Object) new Object[]{"won"})); 348// findStatic of Arrays.asList(...) produces a variable arity method handle: 349MethodHandle asList = publicLookup() 350 .findStatic(Arrays.class, "asList", methodType(List.class, Object[].class)); 351assertEquals(methodType(List.class, Object[].class), asList.type()); 352assert(asList.isVarargsCollector()); 353assertEquals("[]", asList.invoke().toString()); 354assertEquals("[1]", asList.invoke(1).toString()); 355assertEquals("[two, too]", asList.invoke("two", "too").toString()); 356String[] argv = { "three", "thee", "tee" }; 357assertEquals("[three, thee, tee]", asList.invoke(argv).toString()); 358assertEquals("[three, thee, tee]", asList.invoke((Object[])argv).toString()); 359List ls = (List) asList.invoke((Object)argv); 360assertEquals(1, ls.size()); 361assertEquals("[three, thee, tee]", Arrays.toString((Object[])ls.get(0))); 362 }} 363 } 364 365 @Test public void testAsFixedArity() throws Throwable { 366 {{ 367{} /// JAVADOC 368MethodHandle asListVar = publicLookup() 369 .findStatic(Arrays.class, "asList", methodType(List.class, Object[].class)) 370 .asVarargsCollector(Object[].class); 371MethodHandle asListFix = asListVar.asFixedArity(); 372assertEquals("[1]", asListVar.invoke(1).toString()); 373Exception caught = null; 374try { asListFix.invoke((Object)1); } 375catch (Exception ex) { caught = ex; } 376assert(caught instanceof ClassCastException); 377assertEquals("[two, too]", asListVar.invoke("two", "too").toString()); 378try { asListFix.invoke("two", "too"); } 379catch (Exception ex) { caught = ex; } 380assert(caught instanceof WrongMethodTypeException); 381Object[] argv = { "three", "thee", "tee" }; 382assertEquals("[three, thee, tee]", asListVar.invoke(argv).toString()); 383assertEquals("[three, thee, tee]", asListFix.invoke(argv).toString()); 384assertEquals(1, ((List) asListVar.invoke((Object)argv)).size()); 385assertEquals("[three, thee, tee]", asListFix.invoke((Object)argv).toString()); 386 }} 387 } 388 389 @Test public void testAsTypeCornerCases() throws Throwable { 390 {{ 391{} /// JAVADOC 392MethodHandle i2s = publicLookup() 393 .findVirtual(Integer.class, "toString", methodType(String.class)); 394i2s = i2s.asType(i2s.type().unwrap()); 395MethodHandle l2s = publicLookup() 396 .findVirtual(Long.class, "toString", methodType(String.class)); 397l2s = l2s.asType(l2s.type().unwrap()); 398 399Exception caught = null; 400try { i2s.asType(methodType(String.class, String.class)); } 401catch (Exception ex) { caught = ex; } 402assert(caught instanceof WrongMethodTypeException); 403 404i2s.asType(methodType(String.class, byte.class)); 405i2s.asType(methodType(String.class, Byte.class)); 406i2s.asType(methodType(String.class, Character.class)); 407i2s.asType(methodType(String.class, Integer.class)); 408l2s.asType(methodType(String.class, byte.class)); 409l2s.asType(methodType(String.class, Byte.class)); 410l2s.asType(methodType(String.class, Character.class)); 411l2s.asType(methodType(String.class, Integer.class)); 412l2s.asType(methodType(String.class, Long.class)); 413 414caught = null; 415try { i2s.asType(methodType(String.class, Long.class)); } 416catch (Exception ex) { caught = ex; } 417assert(caught instanceof WrongMethodTypeException); 418 419MethodHandle i2sGen = i2s.asType(methodType(String.class, Object.class)); 420MethodHandle l2sGen = l2s.asType(methodType(String.class, Object.class)); 421 422i2sGen.invoke(42); // int -> Integer -> Object -> Integer -> int 423i2sGen.invoke((byte)4); // byte -> Byte -> Object -> Byte -> byte -> int 424l2sGen.invoke(42); // int -> Integer -> Object -> Integer -> int 425l2sGen.invoke((byte)4); // byte -> Byte -> Object -> Byte -> byte -> int 426l2sGen.invoke(0x420000000L); 427 428caught = null; 429try { i2sGen.invoke(0x420000000L); } // long -> Long -> Object -> Integer CCE 430catch (Exception ex) { caught = ex; } 431assert(caught instanceof ClassCastException); 432 433caught = null; 434try { i2sGen.invoke("asdf"); } // String -> Object -> Integer CCE 435catch (Exception ex) { caught = ex; } 436assert(caught instanceof ClassCastException); 437{} 438 }} 439 } 440 441 @Test public void testMutableCallSite() throws Throwable { 442 {{ 443{} /// JAVADOC 444MutableCallSite name = new MutableCallSite(MethodType.methodType(String.class)); 445MethodHandle MH_name = name.dynamicInvoker(); 446MethodType MT_str1 = MethodType.methodType(String.class); 447MethodHandle MH_upcase = MethodHandles.lookup() 448 .findVirtual(String.class, "toUpperCase", MT_str1); 449MethodHandle worker1 = MethodHandles.filterReturnValue(MH_name, MH_upcase); 450name.setTarget(MethodHandles.constant(String.class, "Rocky")); 451assertEquals("ROCKY", (String) worker1.invokeExact()); 452name.setTarget(MethodHandles.constant(String.class, "Fred")); 453assertEquals("FRED", (String) worker1.invokeExact()); 454// (mutation can be continued indefinitely) 455/* 456 * </pre></blockquote> 457 * <p> 458 * The same call site may be used in several places at once. 459 * <blockquote><pre> 460 */ 461MethodType MT_str2 = MethodType.methodType(String.class, String.class); 462MethodHandle MH_cat = lookup().findVirtual(String.class, 463 "concat", methodType(String.class, String.class)); 464MethodHandle MH_dear = MethodHandles.insertArguments(MH_cat, 1, ", dear?"); 465MethodHandle worker2 = MethodHandles.filterReturnValue(MH_name, MH_dear); 466assertEquals("Fred, dear?", (String) worker2.invokeExact()); 467name.setTarget(MethodHandles.constant(String.class, "Wilma")); 468assertEquals("WILMA", (String) worker1.invokeExact()); 469assertEquals("Wilma, dear?", (String) worker2.invokeExact()); 470{} 471 }} 472 } 473 474 @Test public void testSwitchPoint() throws Throwable { 475 {{ 476{} /// JAVADOC 477MethodHandle MH_strcat = MethodHandles.lookup() 478 .findVirtual(String.class, "concat", MethodType.methodType(String.class, String.class)); 479SwitchPoint spt = new SwitchPoint(); 480assert(spt.isValid()); 481// the following steps may be repeated to re-use the same switch point: 482MethodHandle worker1 = MH_strcat; 483MethodHandle worker2 = MethodHandles.permuteArguments(MH_strcat, MH_strcat.type(), 1, 0); 484MethodHandle worker = spt.guardWithTest(worker1, worker2); 485assertEquals("method", (String) worker.invokeExact("met", "hod")); 486SwitchPoint.invalidateAll(new SwitchPoint[]{ spt }); 487assert(!spt.isValid()); 488assertEquals("hodmet", (String) worker.invokeExact("met", "hod")); 489{} 490 }} 491 } 492 493 /* ---- TEMPLATE ---- 494 @Test public void testFoo() throws Throwable { 495 {{ 496{} /// JAVADOC 497{} 498 }} 499 } 500 */ 501} 502