--- a/jdk/src/share/classes/com/sun/management/VMOption.java Mon Jan 20 19:11:57 2014 +0400
+++ b/jdk/src/share/classes/com/sun/management/VMOption.java Mon Jan 20 20:51:54 2014 +0400
@@ -97,6 +97,11 @@
*/
ERGONOMIC,
/**
+ * The VM option was set using the attach framework.
+ * @since 1.9
+ */
+ ATTACH_ON_DEMAND,
+ /**
* The VM option was set via some other mechanism.
*/
OTHER
--- a/jdk/src/share/javavm/export/jmm.h Mon Jan 20 19:11:57 2014 +0400
+++ b/jdk/src/share/javavm/export/jmm.h Mon Jan 20 20:51:54 2014 +0400
@@ -153,6 +153,7 @@
JMM_VMGLOBAL_ORIGIN_ENVIRON_VAR = 4, /* Set via environment variables */
JMM_VMGLOBAL_ORIGIN_CONFIG_FILE = 5, /* Set via config file (such as .hotspotrc) */
JMM_VMGLOBAL_ORIGIN_ERGONOMIC = 6, /* Set via ergonomic */
+ JMM_VMGLOBAL_ORIGIN_ATTACH_ON_DEMAND = 7, /* Set via attach */
JMM_VMGLOBAL_ORIGIN_OTHER = 99 /* Set via some other mechanism */
} jmmVMGlobalOrigin;
--- a/jdk/src/share/native/sun/management/Flag.c Mon Jan 20 19:11:57 2014 +0400
+++ b/jdk/src/share/native/sun/management/Flag.c Mon Jan 20 20:51:54 2014 +0400
@@ -36,6 +36,7 @@
static jobject envvar_origin = NULL;
static jobject config_file_origin = NULL;
static jobject ergo_origin = NULL;
+static jobject attach_origin = NULL;
static jobject other_origin = NULL;
JNIEXPORT jint JNICALL
@@ -74,6 +75,7 @@
envvar_origin = find_origin_constant(env, "ENVIRON_VAR");
config_file_origin = find_origin_constant(env, "CONFIG_FILE");
ergo_origin = find_origin_constant(env, "ERGONOMIC");
+ attach_origin = find_origin_constant(env, "ATTACH_ON_DEMAND");
other_origin = find_origin_constant(env, "OTHER");
}
@@ -154,6 +156,9 @@
case JMM_VMGLOBAL_ORIGIN_ERGONOMIC:
origin = ergo_origin;
break;
+ case JMM_VMGLOBAL_ORIGIN_ATTACH_ON_DEMAND:
+ origin = attach_origin;
+ break;
case JMM_VMGLOBAL_ORIGIN_OTHER:
origin = other_origin;
break;
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/jdk/test/com/sun/management/HotSpotDiagnosticMXBean/CheckOrigin.java Mon Jan 20 20:51:54 2014 +0400
@@ -0,0 +1,134 @@
+/*
+ * Copyright (c) 2013, 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 8028994
+ * @author Staffan Larsen
+ * @library /lib/testlibrary
+ * @run main CheckOrigin
+ */
+
+import com.sun.management.HotSpotDiagnosticMXBean;
+import com.sun.management.VMOption;
+import com.sun.management.VMOption.Origin;
+import com.sun.tools.attach.VirtualMachine;
+import java.io.File;
+import java.io.FileWriter;
+import java.io.InputStream;
+import java.io.PrintWriter;
+import java.lang.management.ManagementFactory;
+import java.util.Map;
+import jdk.testlibrary.ProcessTools;
+import sun.tools.attach.HotSpotVirtualMachine;
+
+public class CheckOrigin {
+
+ private static HotSpotDiagnosticMXBean mbean;
+
+ public static void main(String... args) throws Exception {
+ if (args.length == 0) {
+ // start a process that has options set in a number of different ways
+
+ File flagsFile = File.createTempFile("CheckOriginFlags", null);
+ try (PrintWriter pw =
+ new PrintWriter(new FileWriter(flagsFile))) {
+ pw.println("+PrintSafepointStatistics");
+ }
+
+ ProcessBuilder pb = ProcessTools.
+ createJavaProcessBuilder(
+ "-XX:+PrintGCDetails",
+ "-XX:Flags=" + flagsFile.getAbsolutePath(),
+ "-cp", System.getProperty("test.class.path") + File.pathSeparator + getToolsJarPath(),
+ "CheckOrigin",
+ "-runtests");
+
+ Map<String, String> env = pb.environment();
+ env.put("_JAVA_OPTIONS", "-XX:+PrintOopAddress");
+
+ pb.redirectOutput(ProcessBuilder.Redirect.INHERIT);
+ pb.redirectError(ProcessBuilder.Redirect.INHERIT);
+ Process p = pb.start();
+ int exit = p.waitFor();
+ System.out.println("sub process exit == " + exit);
+ if (exit != 0) {
+ throw new Exception("Unexpected exit code from subprocess == " + exit);
+ }
+ } else {
+ mbean =
+ ManagementFactory.getPlatformMXBean(HotSpotDiagnosticMXBean.class);
+
+ // set a few more options
+ mbean.setVMOption("HeapDumpOnOutOfMemoryError", "true");
+ setOptionUsingAttach("HeapDumpPath", "/a/sample/path");
+
+ // check the origin field for all the options we set
+ checkOrigin("ManagementServer", Origin.DEFAULT);
+ checkOrigin("PrintGCDetails", Origin.VM_CREATION);
+ checkOrigin("PrintOopAddress", Origin.ENVIRON_VAR);
+ checkOrigin("PrintSafepointStatistics", Origin.CONFIG_FILE);
+ checkOrigin("HeapDumpOnOutOfMemoryError", Origin.MANAGEMENT);
+ checkOrigin("NewSize", Origin.ERGONOMIC);
+ checkOrigin("HeapDumpPath", Origin.ATTACH_ON_DEMAND);
+ }
+ }
+
+ private static void checkOrigin(String option, Origin origin) throws Exception
+ {
+ Origin o = mbean.getVMOption(option).getOrigin();
+ if (!o.equals(origin)) {
+ throw new Exception("Option '" + option + "' should have origin '" + origin + "' but had '" + o + "'");
+ }
+ System.out.println("Option '" + option + "' verified origin = '" + origin + "'");
+ }
+
+ // use attach to set a manageable vm option
+ private static void setOptionUsingAttach(String option, String value) throws Exception {
+ HotSpotVirtualMachine vm = (HotSpotVirtualMachine) VirtualMachine.attach(ProcessTools.getProcessId()+"");
+ InputStream in = vm.setFlag(option, value);
+ System.out.println("Result from setting '" + option + "' to '" + value + "' using attach:");
+ drain(vm, in);
+ System.out.println("-- end -- ");
+ }
+
+ // Read the stream from the target VM until EOF, print to output, then detach
+ private static void drain(VirtualMachine vm, InputStream in) throws Exception {
+ byte b[] = new byte[256];
+ int n;
+ do {
+ n = in.read(b);
+ if (n > 0) {
+ String s = new String(b, 0, n, "UTF-8");
+ System.out.print(s);
+ }
+ } while (n > 0);
+ in.close();
+ vm.detach();
+ }
+
+ private static String getToolsJarPath() {
+ return System.getProperty("java.home") +
+ "/../lib/tools.jar".replace("/", File.separator);
+ }
+}