< prev index next >

test/jdk/java/lang/invoke/MethodHandlesTest.java

Print this page

        

*** 1,7 **** /* ! * Copyright (c) 2009, 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. --- 1,7 ---- /* ! * Copyright (c) 2009, 2018, 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.
*** 36,46 **** import java.util.ArrayList; import java.util.Arrays; import java.util.Collection; import java.util.Collections; import java.util.List; - import java.util.stream.Stream; import static org.junit.Assert.*; /** * --- 36,45 ----
*** 560,694 **** static char sC = 1+'C'; static int sI = 1+'I'; static long sJ = 1+'J'; static float sF = 1+'F'; static double sD = 1+'D'; - - // final fields - final boolean fiZ = false; - final byte fiB = 2+(byte)'B'; - final short fiS = 2+(short)'S'; - final char fiC = 2+'C'; - final int fiI = 2+'I'; - final long fiJ = 2+'J'; - final float fiF = 2+'F'; - final double fiD = 2+'D'; final static boolean fsZ = false; ! final static byte fsB = 3+(byte)'B'; ! final static short fsS = 3+(short)'S'; ! final static char fsC = 3+'C'; ! final static int fsI = 3+'I'; ! final static long fsJ = 3+'J'; ! final static float fsF = 3+'F'; ! final static double fsD = 3+'D'; Object iL = 'L'; ! String iR = "iR"; ! static Object sL = 1+'L'; ! static String sR = "sR"; ! final Object fiL = 2+'L'; ! final String fiR = "fiR"; ! final static Object fsL = 3+'L'; ! final static String fsR = "fsR"; ! static final ArrayList<Object[]> STATIC_FIELD_CASES = new ArrayList<>(); ! static final ArrayList<Object[]> INSTANCE_FIELD_CASES = new ArrayList<>(); static { Object types[][] = { {'L',Object.class}, {'R',String.class}, {'I',int.class}, {'J',long.class}, {'F',float.class}, {'D',double.class}, {'Z',boolean.class}, {'B',byte.class}, {'S',short.class}, {'C',char.class}, }; HasFields fields = new HasFields(); for (Object[] t : types) { ! for (int kind = 0; kind <= 1; kind++) { boolean isStatic = (kind != 0); ! ArrayList<Object[]> cases = isStatic ? STATIC_FIELD_CASES : INSTANCE_FIELD_CASES; char btc = (Character)t[0]; ! String fname = (isStatic ? "s" : "i") + btc; ! String finalFname = (isStatic ? "fs" : "fi") + btc; Class<?> type = (Class<?>) t[1]; ! // non-final field ! Field nonFinalField = getField(fname, type); ! Object value = getValue(fields, nonFinalField); if (type == float.class) { float v = 'F'; if (isStatic) v++; assertTrue(value.equals(v)); } ! assertTrue(isStatic == (Modifier.isStatic(nonFinalField.getModifiers()))); ! cases.add(new Object[]{ nonFinalField, value }); ! ! // setAccessible(true) on final field but static final field only has read access ! Field finalField = getField(finalFname, type); ! Object fvalue = getValue(fields, finalField); ! finalField.setAccessible(true); ! assertTrue(isStatic == (Modifier.isStatic(finalField.getModifiers()))); ! cases.add(new Object[]{ finalField, fvalue, Error.class}); } } ! INSTANCE_FIELD_CASES.add(new Object[]{ new Object[]{ false, HasFields.class, "bogus_fD", double.class }, Error.class }); ! STATIC_FIELD_CASES.add(new Object[]{ new Object[]{ true, HasFields.class, "bogus_sL", Object.class }, Error.class }); ! } ! ! private static Field getField(String name, Class<?> type) { ! try { ! Field field = HasFields.class.getDeclaredField(name); ! assertTrue(name.equals(field.getName())); ! assertTrue(type.equals(field.getType())); ! return field; ! } catch (NoSuchFieldException | SecurityException ex) { ! throw new InternalError("no field HasFields."+name); ! } ! } ! ! private static Object getValue(Object o, Field field) { ! try { ! return field.get(o); ! } catch (IllegalArgumentException | IllegalAccessException ex) { ! throw new InternalError("cannot fetch field HasFields."+field.getName()); ! } ! } ! ! static Object[][] testCasesFor(int testMode) { ! Stream<Object[]> cases; ! if ((testMode & TEST_UNREFLECT) != 0) { ! cases = Stream.concat(STATIC_FIELD_CASES.stream(), INSTANCE_FIELD_CASES.stream()); ! } else if ((testMode & TEST_FIND_STATIC) != 0) { ! cases = STATIC_FIELD_CASES.stream(); ! } else if ((testMode & TEST_FIND_FIELD) != 0) { ! cases = INSTANCE_FIELD_CASES.stream(); ! } else { ! throw new InternalError("unexpected test mode: " + testMode); ! } ! return cases.map(c -> mapTestCase(testMode, c)).toArray(Object[][]::new); ! ! } ! ! private static Object[] mapTestCase(int testMode, Object[] c) { ! // non-final fields (2-element) and final fields (3-element) if not TEST_SETTER ! if (c.length == 2 || (testMode & TEST_SETTER) == 0) ! return c; ! ! // final fields (3-element) ! assertTrue((testMode & TEST_SETTER) != 0 && c[0] instanceof Field && c[2] == Error.class); ! if ((testMode & TEST_UNREFLECT) == 0) ! return new Object[]{ c[0], c[2]}; // negative test case; can't set on final fields ! ! // unreflectSetter grants write access on instance final field if accessible flag is true ! // hence promote the negative test case to positive test case ! Field f = (Field) c[0]; ! int mods = f.getModifiers(); ! if (!Modifier.isFinal(mods) || (!Modifier.isStatic(mods) && f.isAccessible())) { ! // positive test case ! return new Object[]{ c[0], c[1] }; ! } else { ! // otherwise, negative test case ! return new Object[]{ c[0], c[2]}; ! } } } static final int TEST_UNREFLECT = 1, TEST_FIND_FIELD = 2, TEST_FIND_STATIC = 3, TEST_SETTER = 0x10, TEST_BOUND = 0x20, TEST_NPE = 0x40; --- 559,632 ---- static char sC = 1+'C'; static int sI = 1+'I'; static long sJ = 1+'J'; static float sF = 1+'F'; static double sD = 1+'D'; final static boolean fsZ = false; ! final static byte fsB = 2+(byte)'B'; ! final static short fsS = 2+(short)'S'; ! final static char fsC = 2+'C'; ! final static int fsI = 2+'I'; ! final static long fsJ = 2+'J'; ! final static float fsF = 2+'F'; ! final static double fsD = 2+'D'; Object iL = 'L'; ! String iR = "R"; ! static Object sL = 'M'; ! static String sR = "S"; ! final static Object fsL = 'N'; ! final static String fsR = "T"; ! static final Object[][] CASES; static { + ArrayList<Object[]> cases = new ArrayList<>(); Object types[][] = { {'L',Object.class}, {'R',String.class}, {'I',int.class}, {'J',long.class}, {'F',float.class}, {'D',double.class}, {'Z',boolean.class}, {'B',byte.class}, {'S',short.class}, {'C',char.class}, }; HasFields fields = new HasFields(); for (Object[] t : types) { ! for (int kind = 0; kind <= 2; kind++) { boolean isStatic = (kind != 0); ! boolean isFinal = (kind == 2); char btc = (Character)t[0]; ! String name = (isStatic ? "s" : "i") + btc; ! if (isFinal) name = "f" + name; Class<?> type = (Class<?>) t[1]; ! Object value; ! Field field; ! try { ! field = HasFields.class.getDeclaredField(name); ! } catch (NoSuchFieldException | SecurityException ex) { ! throw new InternalError("no field HasFields."+name); ! } ! try { ! value = field.get(fields); ! } catch (IllegalArgumentException | IllegalAccessException ex) { ! throw new InternalError("cannot fetch field HasFields."+name); ! } if (type == float.class) { float v = 'F'; if (isStatic) v++; + if (isFinal) v++; assertTrue(value.equals(v)); } ! if (isFinal && isStatic) field.setAccessible(true); ! assertTrue(name.equals(field.getName())); ! assertTrue(type.equals(field.getType())); ! assertTrue(isStatic == (Modifier.isStatic(field.getModifiers()))); ! assertTrue(isFinal == (Modifier.isFinal(field.getModifiers()))); ! cases.add(new Object[]{ field, value }); } } ! cases.add(new Object[]{ new Object[]{ false, HasFields.class, "bogus_fD", double.class }, Error.class }); ! cases.add(new Object[]{ new Object[]{ true, HasFields.class, "bogus_sL", Object.class }, Error.class }); ! CASES = cases.toArray(new Object[0][]); } } static final int TEST_UNREFLECT = 1, TEST_FIND_FIELD = 2, TEST_FIND_STATIC = 3, TEST_SETTER = 0x10, TEST_BOUND = 0x20, TEST_NPE = 0x40;
< prev index next >