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/*
* 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 4421040
* @summary JPDA: Add support for JSR-014 Generics
* @author jjh
*
* @run build TestScaffold VMConnection TargetListener TargetAdapter
* @run compile -g GenericsTest.java
* @run driver GenericsTest
*/
import com.sun.jdi.*;
import com.sun.jdi.event.*;
import com.sun.jdi.request.*;
import java.util.*;
/********** target program **********/
class GenericsTarg {
static Gen1<String> genField = new Gen1<String>();
static Sub1 sub1Field = new Sub1();
String[] strArray = null;
int intField = 0;
Object objField;
public static void main(String[] args){
//genField.print();
System.out.println("Goodbye from GenericsTarg!");
}
}
class Gen1<tt> {
tt field1;
Gen1() {
System.out.println("Gen1 ctor called");
}
tt method1(tt p1) {
Gen1<String> xxx = null;
System.out.println("method1: param is " + p1);
return p1;
}
String method2() {
String str = "This local variable is not generic";
return str;
}
}
class Sub1 extends Gen1<String> {
String method1(String p1) {
System.out.println("method1 has been overridden: param is " + p1);
return "hi";
}
}
/********** test program **********/
public class GenericsTest extends TestScaffold {
ReferenceType targetClass;
ThreadReference mainThread;
static boolean useOld;
GenericsTest (String args[]) {
super(args);
}
public static void main(String[] args) throws Exception {
/*
* The 1.5 FE must be able to talk to a 1.4 BE, ie, JDWP version <= 1.4.
* This is hard to test since this test file must be compiled with
* -source 1.5 which will cause its class file to be version 49 which
* won't run on a pre 1.5 JDK. We can simulate this though
* by passing
* -xjdk <pathname>
* to this test which causes the debuggee to be run on that JDK.
* This should be a version of 1.5 that accepts classfile version 49,
* but which still contains the 1.4 version of JDWP.
* This trick verifies that the calls to genericSignature() methods
* in the test do not cause the generic JDWP commands to be issued.
* The value to use for this is currently:
* /java/re/jdk/1.5/promoted/all/b17/binaries/solaris-sparc
*/
if (args.length > 1 && args[0].equals("-xjdk")) {
System.setProperty("java.home", args[1]);
useOld = true;
// Delete this arg
String[] args1 = new String[args.length - 2];
for (int ii = 0; ii < args.length -2; ii++) {
args1[ii] = args[ii + 2];
}
args = args1;
}
new GenericsTest(args).startTests();
}
/********** test core **********/
protected void runTests() throws Exception {
/*
* Get to the top of main()
* to determine targetClass and mainThread
*/
BreakpointEvent bpe = startToMain("GenericsTarg");
targetClass = bpe.location().declaringType();
{
/*
* Prove that arrays aren't broken and that
* null is returned if there is no generic signature
*/
Field strArray = targetClass.fieldByName("strArray");
ReferenceType fieldType = (ReferenceType)(strArray.type());
String genSig = fieldType.genericSignature();
System.out.println("strArray name = " + strArray);
System.out.println(" type = " + fieldType);
System.out.println(" sig = " + fieldType.signature());
System.out.println(" genSig = " + genSig);
if (!useOld && genSig != null) {
failure("FAILED: Expected generic signature = null for "
+ fieldType.name() + ", received: " + genSig);
}
}
{
// prove that primitives aren't broken.
Field intField = targetClass.fieldByName("intField");
Type fieldType = (Type)(intField.type());
System.out.println("intField name = " + intField);
System.out.println(" type = " + fieldType);
System.out.println(" sig = " + fieldType.signature());
}
Field genField = targetClass.fieldByName("genField");
ReferenceType gen1Class = (ReferenceType)(genField.type());
String genSig;
String expected;
{
// Verify genericSignature for a class
expected = "Ljava/lang/Object;";
genSig = gen1Class.genericSignature();
System.out.println("genField name = " + genField);
System.out.println(" type = " + gen1Class);
System.out.println(" sig = " + gen1Class.signature());
System.out.println(" genSig = " + genSig);
if (!useOld && !expected.equals(genSig)) {
failure("FAILED: Expected generic signature for gen1: " +
expected + ", received: " + genSig);
}
}
{
// Verify genericSignature() for a field
List genFields = gen1Class.fields();
Field field1 = (Field)genFields.get(0);
// there is only one field
expected = "Ttt;";
genSig = field1.genericSignature();
System.out.println("field1 name = " + field1);
System.out.println(" type = " + gen1Class.signature());
System.out.println(" sig = " + field1.signature());
System.out.println(" gen sig = " + genSig);
if (!useOld && !expected.equals(genSig)) {
failure("FAILED: Expected generic signature for field1: " +
expected + ", received: " + genSig);
}
}
{
// Verify genericSignature() for a method
List genMethods = gen1Class.methodsByName("method1");
// There is only uno
Method method1 = (Method)genMethods.get(0);
expected = "(Ttt;)Ttt;";
genSig = method1.genericSignature();
System.out.println("method1 name = " + method1);
System.out.println(" type = " + gen1Class.signature());
System.out.println(" sig = " + method1.signature());
System.out.println(" gen sig = " + genSig);
System.out.println(" bridge = " + method1.isBridge());
if (!useOld && !expected.equals(genSig)) {
failure("FAILED: Expected generic signature for method1: " +
expected + ", received: " + genSig);
}
// Verify this is not a bridge method
if (method1.isBridge()) {
failure("FAILED: Expected gen1.method1 to not be a bridge"
+ " method but it is");
}
// Verify genericSignature for a local var
List localVars = method1.variables();
String[] expectedGenSigs = { "Ttt", "Gen1" };
for ( int ii = 0 ; ii < localVars.size(); ii++) {
expected = expectedGenSigs[ii];
LocalVariable pp = (LocalVariable)localVars.get(ii);
genSig = pp.genericSignature();
System.out.println(" local var " + ii + " = " + pp.name());
System.out.println(" sig = " + pp.signature());
System.out.println(" gen sig = " + genSig);
//jjh Uncomment when generics for local vars are available from
//jjh javac and hotspot. See:
//jjh 4914602 LVT entries for classfile version > 49 must be converted
//jjh if (!useOld && !expected.equals(genSig)) {
//jjh failure("FAILED: Expected generic signature for local var: " +
//jjh expected + ", received: " + genSig);
//jjh }
}
}
{
// Verify genericSignature() for a method2
List genMethods = gen1Class.methodsByName("method2");
// There is only uno
Method method2 = (Method)genMethods.get(0);
expected = "null";
genSig = method2.genericSignature();
genSig = (genSig == null) ? "null" : genSig;
System.out.println("method2 name = " + method2);
System.out.println(" type = " + gen1Class.signature());
System.out.println(" sig = " + method2.signature());
System.out.println(" gen sig = " + genSig);
System.out.println(" bridge = " + method2.isBridge());
if (!useOld && !expected.equals(genSig)) {
failure("FAILED: Expected generic signature for method2: " +
expected + ", received: " + genSig);
}
// Verify this is not a bridge method
if (method2.isBridge()) {
failure("FAILED: Expected gen1.method2 to not be a bridge"
+ " method but it is");
}
// Verify genericSignature for a local var
List localVars = method2.variables();
expected = "null";
for ( int ii = 0 ; ii < localVars.size(); ii++) {
LocalVariable pp = (LocalVariable)localVars.get(ii);
genSig = pp.genericSignature();
genSig = (genSig == null) ? "null" : genSig;
System.out.println(" local var " + ii + " = " + pp.name());
System.out.println(" sig = " + pp.signature());
System.out.println(" gen sig = " + genSig);
if (!useOld && !expected.equals(genSig)) {
failure("FAILED: Expected generic signature for local var: " +
expected + ", received: " + genSig);
}
}
}
{
Field sub1Field = targetClass.fieldByName("sub1Field");
ReferenceType sub1Class = (ReferenceType)(sub1Field.type());
List<Method> sub1Methods = sub1Class.methodsByName("method1");
for (Method mm: sub1Methods) {
System.out.println("method is: " + mm);
}
/*
* There should be two methods - the first is the
* method1 defined in Sub1, and the 2nd is a javac generated
* bridge method.
*/
Method method1 = (Method)sub1Methods.get(1);
System.out.println("\nmethod1 name = " + method1);
System.out.println(" sig = " + method1.signature());
System.out.println(" bridge = " + method1.isBridge());
if (!useOld && !method1.isBridge()) {
failure("FAILED: Expected Sub1.method1 to be a bridge method"
+ " but it isn't");
}
}
{
// Verify genericSignature for a non generic class
genSig = targetClass.genericSignature();
if (genSig != null) {
failure("FAILED: Expected generic signature = null for "
+ targetClass.name() + ", received: " + genSig);
}
}
{
// Verify genericSignature for a non generic field
Field objField = targetClass.fieldByName("objField");
genSig = objField.genericSignature();
if (genSig != null) {
failure("FAILED: Expected generic signature = null for "
+ objField.name() + ", received: " + genSig);
}
}
{
// Verify genericSignature for a non generic method
List methods = targetClass.methodsByName("main");
Method main = (Method)methods.get(0);
genSig = main.genericSignature();
if (genSig != null) {
failure("FAILED: Expected generic signature = null for "
+ main.name() + ", received: " + genSig);
}
}
if (0 == 1) {
mainThread = bpe.thread();
EventRequestManager erm = vm().eventRequestManager();
StepRequest request = erm.createStepRequest(mainThread,
StepRequest.STEP_LINE,
StepRequest.STEP_INTO);
request.enable();
}
/*
* resume the target listening for events
*/
listenUntilVMDisconnect();
/*
* deal with results of test
* if anything has called failure("foo") testFailed will be true
*/
if (!testFailed) {
println("GenericsTest: passed");
} else {
throw new Exception("GenericsTest: failed");
}
}
}
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