--- a/jdk/src/java.base/share/classes/sun/misc/Version.java.template Thu Jun 11 00:51:11 2015 +0200
+++ b/jdk/src/java.base/share/classes/sun/misc/Version.java.template Fri Jun 19 10:58:00 2015 -0700
@@ -55,15 +55,13 @@
private static int jvm_major_version = 0;
private static int jvm_minor_version = 0;
private static int jvm_security_version = 0;
- private static int jvm_update_version = 0;
+ private static int jvm_patch_version = 0;
private static int jvm_build_number = 0;
- private static String jvm_special_version = null;
private static int jdk_major_version = 0;
private static int jdk_minor_version = 0;
private static int jdk_security_version = 0;
- private static int jdk_update_version = 0;
+ private static int jdk_patch_version = 0;
private static int jdk_build_number = 0;
- private static String jdk_special_version = null;
/**
* In case you were wondering this method is called by java -version.
@@ -146,9 +144,7 @@
/**
- * Returns the security version of the running JVM if it's 1.6 or newer
- * or any RE VM build. It will return 0 if it's an internal 1.5 or
- * 1.4.x build.
+ * Returns the security version of the running JVM
* @since 1.6
*/
public static synchronized int jvmSecurityVersion() {
@@ -159,31 +155,18 @@
}
/**
- * Returns the update release version of the running JVM if it's
- * a RE build. It will return 0 if it's an internal build.
- * @since 1.6
+ * Returns the patch release version of the running JVM
+ * @since JDK9
*/
- public static synchronized int jvmUpdateVersion() {
+ public static synchronized int jvmPatchVersion() {
if (!versionsInitialized) {
initVersions();
}
- return jvm_update_version;
+ return jvm_patch_version;
}
- public static synchronized String jvmSpecialVersion() {
- if (!versionsInitialized) {
- initVersions();
- }
- if (jvm_special_version == null) {
- jvm_special_version = getJvmSpecialVersion();
- }
- return jvm_special_version;
- }
- public static native String getJvmSpecialVersion();
-
/**
- * Returns the build number of the running JVM if it's a RE build
- * It will return 0 if it's an internal build.
+ * Returns the build number of the running JVM
* @since 1.6
*/
public static synchronized int jvmBuildNumber() {
@@ -228,31 +211,18 @@
}
/**
- * Returns the update release version of the running JDK if it's
- * a RE build. It will return 0 if it's an internal build.
- * @since 1.6
+ * Returns the patch release version of the running JDK
+ * @since 9
*/
- public static synchronized int jdkUpdateVersion() {
+ public static synchronized int jdkPatchVersion() {
if (!versionsInitialized) {
initVersions();
}
- return jdk_update_version;
+ return jdk_patch_version;
}
- public static synchronized String jdkSpecialVersion() {
- if (!versionsInitialized) {
- initVersions();
- }
- if (jdk_special_version == null) {
- jdk_special_version = getJdkSpecialVersion();
- }
- return jdk_special_version;
- }
- public static native String getJdkSpecialVersion();
-
/**
- * Returns the build number of the running JDK if it's a RE build
- * It will return 0 if it's an internal build.
+ * Returns the build number of the running JDK
* @since 1.6
*/
public static synchronized int jdkBuildNumber() {
@@ -262,64 +232,12 @@
return jdk_build_number;
}
- // true if JVM exports the version info including the capabilities
- private static boolean jvmVersionInfoAvailable;
private static synchronized void initVersions() {
if (versionsInitialized) {
return;
}
- jvmVersionInfoAvailable = getJvmVersionInfo();
- if (!jvmVersionInfoAvailable) {
- // parse java.vm.version for older JVM before the
- // new JVM_GetVersionInfo is added.
- // valid format of the version string is:
- // n.n.n[_uu[c]][-<identifer>]-bxx
- CharSequence cs = System.getProperty("java.vm.version");
- if (cs.length() >= 5 &&
- Character.isDigit(cs.charAt(0)) && cs.charAt(1) == '.' &&
- Character.isDigit(cs.charAt(2)) && cs.charAt(3) == '.' &&
- Character.isDigit(cs.charAt(4))) {
- jvm_major_version = Character.digit(cs.charAt(0), 10);
- jvm_minor_version = Character.digit(cs.charAt(2), 10);
- jvm_security_version = Character.digit(cs.charAt(4), 10);
- cs = cs.subSequence(5, cs.length());
- if (cs.charAt(0) == '_' && cs.length() >= 3 &&
- Character.isDigit(cs.charAt(1)) &&
- Character.isDigit(cs.charAt(2))) {
- int nextChar = 3;
- try {
- String uu = cs.subSequence(1, 3).toString();
- jvm_update_version = Integer.valueOf(uu).intValue();
- if (cs.length() >= 4) {
- char c = cs.charAt(3);
- if (c >= 'a' && c <= 'z') {
- jvm_special_version = Character.toString(c);
- nextChar++;
- }
- }
- } catch (NumberFormatException e) {
- // not conforming to the naming convention
- return;
- }
- cs = cs.subSequence(nextChar, cs.length());
- }
- if (cs.charAt(0) == '-') {
- // skip the first character
- // valid format: <identifier>-bxx or bxx
- // non-product VM will have -debug|-release appended
- cs = cs.subSequence(1, cs.length());
- String[] res = cs.toString().split("-");
- for (String s : res) {
- if (s.charAt(0) == 'b' && s.length() == 3 &&
- Character.isDigit(s.charAt(1)) &&
- Character.isDigit(s.charAt(2))) {
- jvm_build_number =
- Integer.valueOf(s.substring(1, 3)).intValue();
- break;
- }
- }
- }
- }
+ if (!getJvmVersionInfo()) {
+ throw new InternalError("Unable to obtain JVM version info");
}
getJdkVersionInfo();
versionsInitialized = true;
@@ -327,8 +245,6 @@
// Gets the JVM version info if available and sets the jvm_*_version fields
// and its capabilities.
- //
- // Return false if not available which implies an old VM (Tiger or before).
private static native boolean getJvmVersionInfo();
private static native void getJdkVersionInfo();
}