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/*
* Copyright (c) 2007, 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.
*
* 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
*
* @summary converted from VM Testbase nsk/jdwp/ObjectReference/ReferringObjects/referringObjects001.
* VM Testbase keywords: [quick, jpda, jdwp, feature_jdk6_jpda, vm6, monitoring]
* VM Testbase readme:
* DESCRIPTION
* This test performs checking for
* command set: ObjectReference
* command: ReferringObjects
* Test checks that debuggee accept the command packet and
* replies with correct reply packet.
* Test consists of two compoments:
* debugger: referringObjects001
* debuggee: referringObjects001a
* Debuggee during startup initializes static field 'testInstance' with java.lang.Object instance
* and creates objects refer to this instance via references with types which should be supported
* by command ObjectReference.ReferringObjects:
* - strong reference
* - soft reference
* - weak reference
* - phantom reference
* Debugger uses nsk.share support classes to launch debuggee
* and obtain Transport object, that represents JDWP transport channel.
* Also communication channel (IOPipe) is established between
* debugger and debuggee to exchange with execution commands.
* For maxReferrers in [1, 0, Interger.MAX_VALUE]
* do
* Debugger obtains objectID for instance assigned to the debuggee's static field 'testInstance'.
* Then, debugger creates command packet for ReferringObjects command with the
* found objectID and maxReferrers as an arguments, writes packet to the transport
* channel, and waits for a reply packet.
* When reply packet is received, debugger parses the packet structure
* and extracts number of referring objects and referring objects ids.
* Debugger checks that received number of referring objects is correct:
* - if maxReferrers=1 only 1 referring object should be returned
* - if maxReferrers=0 or maxReferrers=Integer.MAX_VALUE all referring objects should be returned
* done
* Also, test performs checks for cases when incorrect data is sent in command.
* Following cases are tested:
* - create command with maxReferrers=-1, expect ILLEGAL_ARGUMENT error
* - create command with objectID = -1, expect INVALID_OBJECT error
* Finally, debugger sends debuggee signal to quit, waits for it exits
* and exits too with the proper exit code.
*
* @requires !vm.graal.enabled
* @library /vmTestbase /test/hotspot/jtreg/vmTestbase
* /test/lib
* @run driver jdk.test.lib.FileInstaller . .
* @build nsk.jdwp.ObjectReference.ReferringObjects.referringObjects001.referringObjects001
* @run main/othervm/native PropertyResolvingWrapper
* nsk.jdwp.ObjectReference.ReferringObjects.referringObjects001.referringObjects001
* -arch=${os.family}-${os.simpleArch}
* -verbose
* -waittime=5
* -debugee.vmkind=java
* -transport.address=dynamic
* -debugee.vmkeys="-Xmx256M ${test.vm.opts} ${test.java.opts}"
*/
package nsk.jdwp.ObjectReference.ReferringObjects.referringObjects001;
import java.io.*;
import nsk.share.Consts;
import nsk.share.jdwp.*;
import nsk.share.jpda.AbstractDebuggeeTest;
public class referringObjects001 extends TestDebuggerType1 {
protected String getDebugeeClassName() {
return nsk.jdwp.ObjectReference.ReferringObjects.referringObjects001.referringObjects001a.class.getName();
}
public static void main(String argv[]) {
System.exit(run(argv, System.out) + Consts.JCK_STATUS_BASE);
}
public static int run(String argv[], PrintStream out) {
return new referringObjects001().runIt(argv, out);
}
private void testCommand(long objectID, int maxReferrers, int expectedReferrersCount, boolean expectError, int errorCode) {
try {
int JDWP_COMMAND_ID = JDWP.Command.ObjectReference.ReferringObjects;
log.display("Create command: " + JDWP.commandNames.get(JDWP_COMMAND_ID));
log.display("objectID = " + objectID);
log.display("maxReferrers = " + maxReferrers);
CommandPacket command = new CommandPacket(JDWP_COMMAND_ID);
command.addObjectID(objectID);
command.addInt(maxReferrers);
log.display("Sending command packet:\n" + command);
transport.write(command);
ReplyPacket reply;
reply = getReply(command, expectError, errorCode);
if (expectError)
return;
int referringObjects = reply.getInt();
log.display("referringObjects = " + referringObjects);
// check that correct 'referringObjects' value was received
if (referringObjects != expectedReferrersCount) {
log.complain("Unexpected value 'referringObjects': " + referringObjects + " expected is " + expectedReferrersCount);
setSuccess(false);
}
for (int i = 0; i < referringObjects; i++) {
JDWP.Value value = reply.getValue();
log.display("tagged-ObjectID = " + value);
}
if (!reply.isParsed()) {
setSuccess(false);
log.complain("Extra trailing bytes found in reply packet at: " + reply.currentPosition());
}
} catch (Exception e) {
setSuccess(false);
log.complain("Caught exception while testing JDWP command: " + e);
e.printStackTrace(log.getOutStream());
}
}
public void doTest() {
/*
* Provoke GC here to be sure that GC won't start during test execution
*/
forceGC();
pipe.println(referringObjects001a.COMMAND_CREATE_TEST_INSTANCES);
if (!isDebuggeeReady())
return;
int referrersCount = referringObjects001a.expectedCount;
long objectID = queryObjectID(debuggee.getReferenceTypeID(createTypeSignature(getDebugeeClassName())), "testInstance", JDWP.Tag.OBJECT);
// create command with maxReferrers=1, only 1 referrer should be returned
testCommand(objectID, 1, 1, false, 0);
// create command with maxReferrers=0, all referrers should be returned
testCommand(objectID, 0, referrersCount, false, 0);
// create command with maxReferrers=Integer.MAX_VALUE, all referrers should be returned
testCommand(objectID, Integer.MAX_VALUE, referrersCount, false, 0);
// create command with maxReferrers=-1, expect ILLEGAL_ARGUMENT error
testCommand(objectID, -1, referrersCount, true, JDWP.Error.ILLEGAL_ARGUMENT);
// create command with objectID = -1, expect INVALID_OBJECT error
testCommand(-1, Integer.MAX_VALUE, referrersCount, true, JDWP.Error.INVALID_OBJECT);
resetStatusIfGC();
}
}
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