src/share/classes/sun/misc/Version.java.template - toolchain/jdk/jdk9_jdk - Git at Google

 /*
  * Copyright (c) 1999, 2007, 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.  Oracle designates this
  * particular file as subject to the "Classpath" exception as provided
  * by Oracle in the LICENSE file that accompanied this code.
  *
  * 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.misc;
 import java.io.PrintStream;

 public class Version {


     private static final String launcher_name =
         "@@launcher_name@@";

     private static final String java_version =
         "@@java_version@@";

     private static final String java_runtime_name =
         "@@java_runtime_name@@";

     private static final String java_runtime_version =
         "@@java_runtime_version@@";

     static {
         init();
     }

     public static void init() {
         System.setProperty("java.version", java_version);
         System.setProperty("java.runtime.version", java_runtime_version);
         System.setProperty("java.runtime.name", java_runtime_name);
     }

     private static boolean versionsInitialized = false;
     private static int jvm_major_version = 0;
     private static int jvm_minor_version = 0;
     private static int jvm_micro_version = 0;
     private static int jvm_update_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_micro_version = 0;
     private static int jdk_update_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.
      * Sad that it prints to stderr; would be nicer if default printed on
      * stdout.
      */
     public static void print() {
         print(System.err);
     }

     /**
      * This is the same as print except that it adds an extra line-feed
      * at the end, typically used by the -showversion in the launcher
      */
     public static void println() {
         print(System.err);
         System.err.println();
     }

     /**
      * Give a stream, it will print version info on it.
      */
     public static void print(PrintStream ps) {
         /* First line: platform version. */
         ps.println(launcher_name + " version \"" + java_version + "\"");

         /* Second line: runtime version (ie, libraries). */
         ps.println(java_runtime_name + " (build " +
                            java_runtime_version + ")");

         /* Third line: JVM information. */
         String java_vm_name    = System.getProperty("java.vm.name");
         String java_vm_version = System.getProperty("java.vm.version");
         String java_vm_info    = System.getProperty("java.vm.info");
         ps.println(java_vm_name + " (build " + java_vm_version + ", " +
                    java_vm_info + ")");
     }


     /**
      * Returns the major 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.
      *
      * @since 1.6
      */
     public static synchronized int jvmMajorVersion() {
         if (!versionsInitialized) {
             initVersions();
         }
         return jvm_major_version;
     }

     /**
      * Returns the minor 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.
      * @since 1.6
      */
     public static synchronized int jvmMinorVersion() {
         if (!versionsInitialized) {
             initVersions();
         }
         return jvm_minor_version;
     }


     /**
      * Returns the micro 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.
      * @since 1.6
      */
     public static synchronized int jvmMicroVersion() {
         if (!versionsInitialized) {
             initVersions();
         }
         return jvm_micro_version;
     }

     /**
      * 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
      */
     public static synchronized int jvmUpdateVersion() {
         if (!versionsInitialized) {
             initVersions();
         }
         return jvm_update_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.
      * @since 1.6
      */
     public static synchronized int jvmBuildNumber() {
         if (!versionsInitialized) {
             initVersions();
         }
         return jvm_build_number;
     }

     /**
      * Returns the major version of the running JDK.
      *
      * @since 1.6
      */
     public static synchronized int jdkMajorVersion() {
         if (!versionsInitialized) {
             initVersions();
         }
         return jdk_major_version;
     }

     /**
      * Returns the minor version of the running JDK.
      * @since 1.6
      */
     public static synchronized int jdkMinorVersion() {
         if (!versionsInitialized) {
             initVersions();
         }
         return jdk_minor_version;
     }

     /**
      * Returns the micro version of the running JDK.
      * @since 1.6
      */
     public static synchronized int jdkMicroVersion() {
         if (!versionsInitialized) {
             initVersions();
         }
         return jdk_micro_version;
     }

     /**
      * 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
      */
     public static synchronized int jdkUpdateVersion() {
         if (!versionsInitialized) {
             initVersions();
         }
         return jdk_update_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.
      * @since 1.6
      */
     public static synchronized int jdkBuildNumber() {
         if (!versionsInitialized) {
             initVersions();
         }
         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_micro_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;
                         }
                     }
                 }
             }
         }
         getJdkVersionInfo();
         versionsInitialized = true;
     }

     // 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();

 }

 // Help Emacs a little because this file doesn't end in .java.
 //
 // Local Variables: ***
 // mode: java ***
 // End: ***
	/*
	* Copyright (c) 1999, 2007, 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. Oracle designates this
	* particular file as subject to the "Classpath" exception as provided
	* by Oracle in the LICENSE file that accompanied this code.
	*
	* 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.misc;
	import java.io.PrintStream;

	public class Version {


	private static final String launcher_name =
	"@@launcher_name@@";

	private static final String java_version =
	"@@java_version@@";

	private static final String java_runtime_name =
	"@@java_runtime_name@@";

	private static final String java_runtime_version =
	"@@java_runtime_version@@";

	static {
	init();
	}

	public static void init() {
	System.setProperty("java.version", java_version);
	System.setProperty("java.runtime.version", java_runtime_version);
	System.setProperty("java.runtime.name", java_runtime_name);
	}

	private static boolean versionsInitialized = false;
	private static int jvm_major_version = 0;
	private static int jvm_minor_version = 0;
	private static int jvm_micro_version = 0;
	private static int jvm_update_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_micro_version = 0;
	private static int jdk_update_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.
	* Sad that it prints to stderr; would be nicer if default printed on
	* stdout.
	*/
	public static void print() {
	print(System.err);
	}

	/**
	* This is the same as print except that it adds an extra line-feed
	* at the end, typically used by the -showversion in the launcher
	*/
	public static void println() {
	print(System.err);
	System.err.println();
	}

	/**
	* Give a stream, it will print version info on it.
	*/
	public static void print(PrintStream ps) {
	/* First line: platform version. */
	ps.println(launcher_name + " version \"" + java_version + "\"");

	/* Second line: runtime version (ie, libraries). */
	ps.println(java_runtime_name + " (build " +
	java_runtime_version + ")");

	/* Third line: JVM information. */
	String java_vm_name = System.getProperty("java.vm.name");
	String java_vm_version = System.getProperty("java.vm.version");
	String java_vm_info = System.getProperty("java.vm.info");
	ps.println(java_vm_name + " (build " + java_vm_version + ", " +
	java_vm_info + ")");
	}


	/**
	* Returns the major 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.
	*
	* @since 1.6
	*/
	public static synchronized int jvmMajorVersion() {
	if (!versionsInitialized) {
	initVersions();
	}
	return jvm_major_version;
	}

	/**
	* Returns the minor 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.
	* @since 1.6
	*/
	public static synchronized int jvmMinorVersion() {
	if (!versionsInitialized) {
	initVersions();
	}
	return jvm_minor_version;
	}


	/**
	* Returns the micro 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.
	* @since 1.6
	*/
	public static synchronized int jvmMicroVersion() {
	if (!versionsInitialized) {
	initVersions();
	}
	return jvm_micro_version;
	}

	/**
	* 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
	*/
	public static synchronized int jvmUpdateVersion() {
	if (!versionsInitialized) {
	initVersions();
	}
	return jvm_update_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.
	* @since 1.6
	*/
	public static synchronized int jvmBuildNumber() {
	if (!versionsInitialized) {
	initVersions();
	}
	return jvm_build_number;
	}

	/**
	* Returns the major version of the running JDK.
	*
	* @since 1.6
	*/
	public static synchronized int jdkMajorVersion() {
	if (!versionsInitialized) {
	initVersions();
	}
	return jdk_major_version;
	}

	/**
	* Returns the minor version of the running JDK.
	* @since 1.6
	*/
	public static synchronized int jdkMinorVersion() {
	if (!versionsInitialized) {
	initVersions();
	}
	return jdk_minor_version;
	}

	/**
	* Returns the micro version of the running JDK.
	* @since 1.6
	*/
	public static synchronized int jdkMicroVersion() {
	if (!versionsInitialized) {
	initVersions();
	}
	return jdk_micro_version;
	}

	/**
	* 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
	*/
	public static synchronized int jdkUpdateVersion() {
	if (!versionsInitialized) {
	initVersions();
	}
	return jdk_update_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.
	* @since 1.6
	*/
	public static synchronized int jdkBuildNumber() {
	if (!versionsInitialized) {
	initVersions();
	}
	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_micro_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;
	}
	}
	}
	}
	}
	getJdkVersionInfo();
	versionsInitialized = true;
	}

	// 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();

	}

	// Help Emacs a little because this file doesn't end in .java.
	//
	// Local Variables: ***
	// mode: java ***
	// End: ***