| /* |
| * Copyright (c) 2003, 2015, 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 4870984 |
| * @summary JPDA: Add support for RFE 4856541 - varargs |
| * |
| * @author jjh |
| * |
| * @modules jdk.jdi |
| * @run build TestScaffold VMConnection TargetListener TargetAdapter |
| * @run compile -g VarargsTest.java |
| * @run driver VarargsTest |
| */ |
| import com.sun.jdi.*; |
| import com.sun.jdi.event.*; |
| import com.sun.jdi.request.*; |
| |
| import java.util.*; |
| |
| /********** target program **********/ |
| |
| class VarargsTarg { |
| |
| // These are args that will get passed |
| static String[] strArray = new String[] {"a", "b"}; |
| static int[] intArray = new int[] {1, 2}; |
| |
| // We will pass these to a varargs instance method |
| static VarargsTarg vt1 = new VarargsTarg("vt1", ""); |
| static VarargsTarg vt2 = new VarargsTarg("vt2", ""); |
| |
| String iname; |
| |
| VarargsTarg(String ... name) { |
| iname = ""; |
| for (int ii = 0; ii < name.length; ii++) { |
| iname += name[ii]; |
| } |
| } |
| |
| public static void main(String[] args){ |
| System.out.println("Howdy!"); |
| /* |
| * This isn't really part of the test, it just shows |
| * the kinds of calls the debugger test will do and lets |
| * you verify how javac handles these calls. |
| */ |
| System.out.println("debuggee: " + varString()); |
| System.out.println("debuggee: " + varString(null)); |
| System.out.println("debuggee: " + varString("a")); |
| System.out.println("debuggee: " + varString("b", "c")); |
| System.out.println("debuggee: " + fixedString(null)); |
| System.out.println("debuggee: " + vt1.varStringInstance(vt1, vt2)); |
| System.out.println("debuggge: " + varInt(1, 2, 3)); |
| System.out.println("debuggee: " + varInteger( new Integer(89))); |
| |
| // Should be autoboxed: javac converts the ints to Integers |
| // Needs a new method in java.lang.Integer which is only |
| // in the generics workspace. |
| System.out.println("debugggee: " + varInteger(3, 5, 6)); |
| |
| System.out.println("Goodbye from VarargsTarg!"); |
| bkpt(); |
| } |
| static void bkpt() { |
| } |
| |
| /* |
| * Define the methods to be called from the debugger |
| */ |
| static String fixedInt(int p1) { |
| return "" + p1; |
| } |
| |
| static String fixedInteger(Integer p1) { |
| return "" + p1; |
| } |
| |
| static String varInt(int... ss) { |
| String retVal = ""; |
| for (int ii = 0; ii < ss.length; ii++) { |
| retVal += ss[ii]; |
| } |
| return retVal; |
| } |
| |
| static String varInteger(Integer... ss) { |
| String retVal = ""; |
| for (int ii = 0; ii < ss.length; ii++) { |
| retVal += ss[ii]; |
| } |
| return retVal; |
| } |
| |
| static String varString(String... ss) { |
| if (ss == null) { |
| return "-null-"; |
| } |
| |
| String retVal = ""; |
| for (int ii = 0; ii < ss.length; ii++) { |
| retVal += ss[ii]; |
| } |
| return retVal; |
| } |
| |
| static String varString2(int p1, String... ss) { |
| return p1 + varString(ss); |
| } |
| |
| static String fixedString(String ss) { |
| return "-fixed-"; |
| } |
| |
| String varStringInstance(VarargsTarg... args) { |
| if (args == null) { |
| return "-null-"; |
| } |
| //System.out.println("debugee: ss length = " + ss.length); |
| String retVal = iname + ": "; |
| for (int ii = 0; ii < args.length; ii++) { |
| retVal += args[ii].iname; |
| } |
| return retVal; |
| } |
| |
| } |
| |
| /********** test program **********/ |
| |
| public class VarargsTest extends TestScaffold { |
| ClassType targetClass; |
| ThreadReference mainThread; |
| |
| VarargsTest (String args[]) { |
| super(args); |
| } |
| |
| public static void main(String[] args) throws Exception { |
| new VarargsTest(args).startTests(); |
| } |
| |
| void fail(String reason) { |
| failure(reason); |
| } |
| |
| /* |
| * Call a method in the debuggee and verify the return value. |
| */ |
| void doInvoke(Object ct, Method mm, List args, Object expected) { |
| StringReference returnValue = null; |
| try { |
| returnValue = doInvokeNoVerify(ct, mm, args); |
| } catch (Exception ee) { |
| fail("failure: invokeMethod got exception : " + ee); |
| ee.printStackTrace(); |
| return; |
| } |
| if (!returnValue.value().equals(expected)) { |
| fail("failure: expected \"" + expected + "\", got \"" + |
| returnValue.value() + "\""); |
| } |
| } |
| |
| /* |
| * Call a method in the debuggee. |
| */ |
| StringReference doInvokeNoVerify(Object ct, Method mm, List args) |
| throws Exception { |
| StringReference returnValue = null; |
| if (ct instanceof ClassType) { |
| returnValue = (StringReference)((ClassType)ct). |
| invokeMethod(mainThread, mm, args, 0); |
| } else { |
| returnValue = (StringReference)((ObjectReference)ct). |
| invokeMethod(mainThread, mm, args, 0); |
| } |
| return returnValue; |
| } |
| |
| /********** test core **********/ |
| |
| protected void runTests() throws Exception { |
| /* |
| * Get to the top of main() |
| * to determine targetClass and mainThread |
| */ |
| BreakpointEvent bpe = startToMain("VarargsTarg"); |
| targetClass = (ClassType)bpe.location().declaringType(); |
| mainThread = bpe.thread(); |
| |
| /* |
| * Run past the calls the debuggee makes |
| * just to see what they do. |
| */ |
| bpe = resumeTo("VarargsTarg", "bkpt", "()V"); |
| |
| /* |
| * Find Method objects for varString and varString2 |
| * Both are tested just to show that the code works |
| * if there is just one param or if there is more than one. |
| */ |
| ReferenceType rt = findReferenceType("VarargsTarg"); |
| |
| List mList; |
| |
| /* |
| * The test consists of calling the varargs static and instance methods |
| * (and constructor) passing primitives, Strings, and Objects, and also |
| * passing arrays of the above instead of individual args. |
| * The same code is used in the underlying JDI implementations |
| * for calling instance methods, static methods, and constructors |
| * so this test doesn't have to try all possible argument configurations |
| * with each type of method. |
| */ |
| |
| mList = rt.methodsByName("varString"); |
| Method varString = (Method)mList.get(0); |
| |
| mList = rt.methodsByName("varString2"); |
| Method varString2 = (Method)mList.get(0); |
| |
| if (!varString.isVarArgs()) { |
| fail("failure: varString is not flagged as being var args"); |
| } |
| if (!varString2.isVarArgs()) { |
| fail("failure: varString2 is not flagged as being var args"); |
| } |
| |
| /* |
| * Setup arg lists for both varString and varString2 that |
| * have null in the varargs position. |
| */ |
| |
| { |
| // call varString() |
| ArrayList nullArg1 = new ArrayList(0); |
| doInvoke(targetClass, varString, nullArg1, ""); |
| } |
| { |
| // call varString(null) |
| ArrayList nullArg1 = new ArrayList(1); |
| nullArg1.add(null); |
| doInvoke(targetClass, varString, nullArg1, "-null-"); |
| } |
| { |
| // call varString(9) |
| ArrayList nullArg2 = new ArrayList(1); |
| nullArg2.add(vm().mirrorOf(9)); |
| doInvoke(targetClass, varString2, nullArg2, "9"); |
| } |
| { |
| // call varString(9, null) |
| ArrayList nullArg2 = new ArrayList(2); |
| nullArg2.add(vm().mirrorOf(9)); |
| nullArg2.add(null); |
| doInvoke(targetClass, varString2, nullArg2, "9-null-"); |
| } |
| { |
| ArrayList args1 = new ArrayList(4); |
| args1.add(vm().mirrorOf("1")); |
| |
| // call varString("1") |
| doInvoke(targetClass, varString, args1, "1"); |
| |
| // call varString("1", "2") |
| args1.add(vm().mirrorOf("2")); |
| args1.add(vm().mirrorOf("3")); |
| args1.add(vm().mirrorOf("4")); |
| doInvoke(targetClass, varString, args1, "1234"); |
| } |
| { |
| ArrayList args2 = new ArrayList(2); |
| args2.add(vm().mirrorOf(9)); |
| args2.add(vm().mirrorOf("1")); |
| |
| // call varString2(9, "1"); |
| doInvoke(targetClass, varString2, args2, "91"); |
| |
| // call varString2(9, "1", "2"); |
| args2.add(vm().mirrorOf("2")); |
| doInvoke(targetClass, varString2, args2, "912"); |
| } |
| |
| { |
| /* |
| * Passing an array of Strings should work too. |
| */ |
| Field ff = targetClass.fieldByName("strArray"); |
| Value vv1 = targetClass.getValue(ff); |
| |
| // call varString(new String[] {"a", "b"}) |
| ArrayList argsArray = new ArrayList(1); |
| argsArray.add(vv1); |
| doInvoke(targetClass, varString, argsArray, "ab"); |
| |
| /* |
| * But passing an array of Strings and another String |
| * should fail |
| */ |
| argsArray.add(vm().mirrorOf("x")); |
| boolean isOk = false; |
| try { |
| // call varString(new String[] {"a", "b"}, "x") |
| doInvokeNoVerify(targetClass, varString, argsArray); |
| } catch (Exception ee) { |
| /* |
| * Since the number of args passed is > than |
| * the number of params, JDI assumes they are var args |
| * and tries to put the array containing the "a" and |
| * "be" elements into a the first element of an array |
| * of Strings. This fails because you can't store |
| * an array into a String |
| */ |
| isOk = true; |
| //ee.printStackTrace(); |
| } |
| if (!isOk) { |
| fail("failure: an array and a String didn't cause an exception"); |
| } |
| } |
| |
| { |
| /* |
| * Test calling instance method instead of static method, |
| * and passing non-String objects |
| */ |
| Field vtField = targetClass.fieldByName("vt1"); |
| Value vv1 = targetClass.getValue(vtField); |
| |
| vtField = targetClass.fieldByName("vt2"); |
| Value vv2 = targetClass.getValue(vtField); |
| |
| /* Create a new instance by calling the varargs |
| * ctor. |
| * call new VarargsTarg("vt3", "xx"); |
| */ |
| Value vv3; |
| { |
| mList = rt.methodsByName("<init>"); |
| Method ctor = (Method)mList.get(0); |
| if (!ctor.isVarArgs()) { |
| fail("failure: Constructor is not varargs"); |
| } |
| ArrayList argsArray = new ArrayList(2); |
| argsArray.add(vm().mirrorOf("vt3")); |
| argsArray.add(vm().mirrorOf("xx")); |
| vv3 = targetClass.newInstance(mainThread, ctor, argsArray, 0); |
| } |
| // call vt1.varStringInstance(vv1, vv2, vv3) |
| mList = rt.methodsByName("varStringInstance"); |
| Method varStringInstance = (Method)mList.get(0); |
| |
| ArrayList argsArray = new ArrayList(3); |
| argsArray.add(vv1); |
| argsArray.add(vv2); |
| argsArray.add(vv3); |
| doInvoke(vv1, varStringInstance, argsArray, "vt1: vt1vt2vt3xx"); |
| } |
| { |
| /* |
| * tests with primitive types |
| */ |
| List mlist; |
| Method mm; |
| ArrayList ll = new ArrayList(2); |
| |
| // call fixedInt(21) |
| mlist = rt.methodsByName("fixedInt"); |
| mm = (Method)mlist.get(0); |
| ll.add(vm().mirrorOf(21)); |
| doInvoke(targetClass, mm, ll, "21"); |
| |
| // autoboxing is not implemented in JDI. |
| // call fixedInteger(21) |
| //mlist = rt.methodsByName("fixedInteger"); |
| //mm = (Method)mlist.get(0); |
| //doInvoke(targetClass, mm, ll, "21"); |
| |
| mlist = rt.methodsByName("varInt"); |
| mm = (Method)mlist.get(0); |
| |
| // call varInt( new int[] {1, 2}); |
| Field ff = targetClass.fieldByName("intArray"); |
| Value vv1 = targetClass.getValue(ff); |
| ll.set(0, vv1); |
| doInvoke(targetClass, mm, ll, "12"); |
| |
| // call varInt(21, 22) |
| ll.set(0, vm().mirrorOf(21)); |
| ll.add(vm().mirrorOf(22)); |
| doInvoke(targetClass, mm, ll, "2122"); |
| |
| mlist = rt.methodsByName("varInteger"); |
| mm = (Method)mlist.get(0); |
| |
| // call varInteger(1, 2) |
| // autoboxing is not implemented. |
| //doInvoke(targetClass, mm, ll, "2122"); |
| } |
| |
| /* |
| * We don't really need this for the test, but |
| * but without it, we sometimes hit 4728096. |
| */ |
| listenUntilVMDisconnect(); |
| /* |
| * deal with results of test |
| * if anything has called failure("foo") testFailed will be true |
| */ |
| if (!testFailed) { |
| println("VarargsTest: passed"); |
| } else { |
| throw new Exception("VarargsTest: failed"); |
| } |
| } |
| } |