7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 */
23
24
25 package org.graalvm.compiler.serviceprovider;
26
27 /**
28 * Interface to query which JDK version Graal is running on.
29 */
30 public final class JavaVersionUtil {
31
32 private static int getJavaSpecificationVersion() {
33 String value = System.getProperty("java.specification.version");
34 if (value.startsWith("1.")) {
35 value = value.substring(2);
36 }
37 return Integer.parseInt(value);
38 }
39
40 /**
41 * The integer value corresponding to the value of the {@code java.specification.version} system
42 * property after any leading {@code "1."} has been stripped.
43 */
44 public static final int JAVA_SPECIFICATION_VERSION = getJavaSpecificationVersion();
45
46 /**
47 * Determines if the Java runtime is version 8 or earlier.
48 */
49 public static final boolean Java8OrEarlier = JAVA_SPECIFICATION_VERSION <= 8;
50
51 /**
52 * Determines if the Java runtime is version 11 or earlier.
53 */
|
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 */
23
24
25 package org.graalvm.compiler.serviceprovider;
26
27 import jdk.vm.ci.services.Services;
28
29 /**
30 * Interface to query which JDK version Graal is running on.
31 */
32 public final class JavaVersionUtil {
33
34 private static int getJavaSpecificationVersion() {
35 String value = Services.getSavedProperties().get("java.specification.version");
36 if (value.startsWith("1.")) {
37 value = value.substring(2);
38 }
39 return Integer.parseInt(value);
40 }
41
42 /**
43 * The integer value corresponding to the value of the {@code java.specification.version} system
44 * property after any leading {@code "1."} has been stripped.
45 */
46 public static final int JAVA_SPECIFICATION_VERSION = getJavaSpecificationVersion();
47
48 /**
49 * Determines if the Java runtime is version 8 or earlier.
50 */
51 public static final boolean Java8OrEarlier = JAVA_SPECIFICATION_VERSION <= 8;
52
53 /**
54 * Determines if the Java runtime is version 11 or earlier.
55 */
|