This commit is contained in:
J. Duke 2017-07-05 21:47:36 +02:00
commit 5d74069a5a
6 changed files with 118 additions and 6 deletions

@ -363,3 +363,4 @@ e882bcdbdac436523f3d5681611d3118a3804ea7 jdk-9+117
047f95de8f918d8ff5e8cd2636a2abb5c3c8adb8 jdk-9+118
3463a3f14f0f0e8a68f29ac6405454f2fa2f598a jdk-9+119
647e0142a5a52749db572b5e6638d561def6479e jdk-9+120
cae471d3b87783e0a3deea658e1e1c84b2485b6c jdk-9+121

@ -3,7 +3,7 @@ The GNU General Public License (GPL)
Version 2, June 1991
Copyright (C) 1989, 1991 Free Software Foundation, Inc.
59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
Everyone is permitted to copy and distribute verbatim copies of this license
document, but changing it is not allowed.
@ -287,8 +287,8 @@ pointer to where the full notice is found.
more details.
You should have received a copy of the GNU General Public License along
with this program; if not, write to the Free Software Foundation, Inc., 59
Temple Place, Suite 330, Boston, MA 02111-1307 USA
with this program; if not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
Also add information on how to contact you by electronic and paper mail.

@ -318,7 +318,8 @@ var getJibProfilesProfiles = function (input, common) {
},
"linux-x86-open": {
default_make_targets: "profiles"
default_make_targets: "profiles",
configure_args: "--with-jvm-variants=client,server"
}
};
var openOnlyProfiles = concatObjects(openOnlyProfiles, openOnlyProfilesExtra);

@ -57,7 +57,6 @@ BOOT_MODULES += \
java.rmi \
java.security.jgss \
java.security.sasl \
java.sql \
java.xml \
java.xml.crypto \
jdk.httpserver \
@ -72,7 +71,6 @@ BOOT_MODULES += \
# to be deprivileged
BOOT_MODULES += \
java.sql.rowset \
java.smartcardio \
jdk.naming.rmi \
#
@ -106,6 +104,8 @@ PLATFORM_MODULES += \
PLATFORM_MODULES += \
java.compiler \
java.scripting \
java.sql \
java.sql.rowset \
jdk.accessibility \
jdk.charsets \
jdk.crypto.ec \

@ -377,6 +377,12 @@ public class WhiteBox {
public native long incMetaspaceCapacityUntilGC(long increment);
public native long metaspaceCapacityUntilGC();
// Don't use these methods directly
// Use sun.hotspot.gc.GC class instead.
public native int currentGC();
public native int allSupportedGC();
public native boolean gcSelectedByErgo();
// Force Young GC
public native void youngGC();

@ -0,0 +1,104 @@
/*
* Copyright (c) 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.
*
*/
package sun.hotspot.gc;
import java.util.ArrayList;
import java.util.List;
import sun.hotspot.WhiteBox;
/**
* API to obtain information about selected and supported Garbage Collectors
* retrieved from the VM with the WhiteBox API.
*/
public enum GC {
Serial(1),
Parallel(2),
ConcMarkSweep(4),
G1(8);
private static final GC CURRENT_GC;
private static final int ALL_GC_CODES;
private static final boolean IS_BY_ERGO;
static {
WhiteBox WB = WhiteBox.getWhiteBox();
ALL_GC_CODES = WB.allSupportedGC();
IS_BY_ERGO = WB.gcSelectedByErgo();
int currentCode = WB.currentGC();
GC tmp = null;
for (GC gc: GC.values()) {
if (gc.code == currentCode) {
tmp = gc;
break;
}
}
if (tmp == null) {
throw new Error("Unknown current GC code " + currentCode);
}
CURRENT_GC = tmp;
}
private final int code;
private GC(int code) {
this.code = code;
}
/**
* @return true if the collector is supported by the VM, false otherwise.
*/
public boolean isSupported() {
return (ALL_GC_CODES & code) != 0;
}
/**
* @return the current collector used by VM.
*/
public static GC current() {
return CURRENT_GC;
}
/**
* @return true if GC was selected by ergonomic, false if specified
* explicitly by the command line flag.
*/
public static boolean currentSetByErgo() {
return IS_BY_ERGO;
}
/**
* @return List of collectors supported by the VM.
*/
public static List<GC> allSupported() {
List<GC> list = new ArrayList<>();
for (GC gc: GC.values()) {
if (gc.isSupported()) {
list.add(gc);
}
}
return list;
}
}