/* * Copyright (c) 2010, 2016, 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 6991980 * @summary polymorphic signature calls don't share the same CP entries * @modules jdk.jdeps/com.sun.tools.classfile * @run main TestCP
*/
void test(MethodHandle mh) throws Throwable {
Number n = (Number)mh.invokeExact("daddy",1,'n');
n = (Number)mh.invokeExact("bunny",1,'d');
n = (Number)(mh.invokeExact("foo",1,'d'));
n = (Number)((mh.invokeExact("bar",1,'d')));
}
}
// Test with sig-poly return type void test(VarHandle vh) throws Throwable {
Number n = (Number)vh.get("daddy",1,'n');
n = (Number)vh.get("bunny",1,'d');
n = (Number)(vh.get("foo",1,'d'));
n = (Number)((vh.get("bar",1,'d')));
}
}
// Test with non-sig-poly boolean return type void test(VarHandle vh) throws Throwable { boolean r = vh.compareAndSet("daddy",1,'n');
r = vh.compareAndSet("bunny",1,'d');
r = (vh.compareAndSet("foo",1,'d'));
r = ((vh.compareAndSet("bar",1,'d')));
}
}
void verifySigPolyInvokeVirtual(File f, String psType) {
System.err.println("verify: " + f); try { int count = 0;
ClassFile cf = ClassFile.read(f);
Method testMethod = null; for (Method m : cf.methods) { if (m.getName(cf.constant_pool).equals(TEST_METHOD_NAME)) {
testMethod = m; break;
}
} if (testMethod == null) { thrownew Error("Test method not found");
}
Code_attribute ea = (Code_attribute)testMethod.attributes.get(Attribute.Code); if (testMethod == null) { thrownew Error("Code attribute for test() method not found");
} int instr_count = 0; int cp_entry = -1;
for (Instruction i : ea.getInstructions()) { if (i.getMnemonic().equals("invokevirtual")) {
instr_count++; if (cp_entry == -1) {
cp_entry = i.getUnsignedShort(1);
} elseif (cp_entry != i.getUnsignedShort(1)) { thrownew Error("Unexpected CP entry in polymorphic signature call");
}
CONSTANT_Methodref_info methRef =
(CONSTANT_Methodref_info)cf.constant_pool.get(cp_entry);
String type = methRef.getNameAndTypeInfo().getType(); if (!type.equals(psType)) { thrownew Error("Unexpected type in polymorphic signature call: " + type);
}
}
} if (instr_count != PS_CALLS_COUNT) { thrownew Error("Wrong number of polymorphic signature call found: " + instr_count);
}
} catch (Exception e) {
e.printStackTrace(); thrownew Error("error reading " + f +": " + e);
}
}
}
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