mirror of
https://github.com/GravitLauncher/Launcher
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96 lines
2.7 KiB
Java
96 lines
2.7 KiB
Java
package ru.gravit.launcher.relauncher;
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public final class JavaVersionInfo {
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/**
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* The major version number of class files for JDK 1.1.
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*/
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public static final int JAVA_1 = 45;
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/**
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* The major version number of class files for JDK 10.
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*/
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public static final int JAVA_10 = 54;
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/**
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* The major version number of class files for JDK 11.
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*/
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public static final int JAVA_11 = 55;
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/**
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* The major version number of class files for JDK 1.2.
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*/
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public static final int JAVA_2 = 46;
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/**
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* The major version number of class files for JDK 1.3.
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*/
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public static final int JAVA_3 = 47;
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/**
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* The major version number of class files for JDK 1.4.
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*/
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public static final int JAVA_4 = 48;
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/**
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* The major version number of class files for JDK 1.5.
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*/
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public static final int JAVA_5 = 49;
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/**
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* The major version number of class files for JDK 1.6.
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*/
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public static final int JAVA_6 = 50;
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/**
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* The major version number of class files for JDK 1.7.
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*/
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public static final int JAVA_7 = 51;
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/**
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* The major version number of class files for JDK 1.8.
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*/
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public static final int JAVA_8 = 52;
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/**
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* The major version number of class files for JDK 1.9.
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*/
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public static final int JAVA_9 = 53;
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/**
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* The major version number of class files created from scratch. The default
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* value is 47 (JDK 1.3). It is 49 (JDK 1.5) if the JVM supports
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* <code>java.lang.StringBuilder</code>. It is 50 (JDK 1.6) if the JVM supports
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* <code>java.util.zip.DeflaterInputStream</code>. It is 51 (JDK 1.7) if the JVM
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* supports <code>java.lang.invoke.CallSite</code>. It is 52 (JDK 1.8) if the
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* JVM supports <code>java.util.function.Function</code>. It is 53 (JDK 1.9) if
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* the JVM supports <code>java.lang.reflect.Module</code>. It is 54 (JDK 10) if
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* the JVM supports <code>java.util.List.copyOf(Collection)</code>. It is 55
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* (JDK 11) if the JVM supports <code>java.util.Optional.isEmpty()</code>.
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*/
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public static final int MAJOR_VERSION;
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static {
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int ver = JAVA_3;
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try {
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Class.forName("java.lang.StringBuilder");
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ver = JAVA_5;
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Class.forName("java.util.zip.DeflaterInputStream");
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ver = JAVA_6;
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Class.forName("java.lang.invoke.CallSite", false, ClassLoader.getSystemClassLoader());
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ver = JAVA_7;
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Class.forName("java.util.function.Function");
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ver = JAVA_8;
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Class.forName("java.lang.Module");
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ver = JAVA_9;
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Class.forName("java.util.List").getMethod("copyOf", Class.forName("java.util.Collection"));
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ver = JAVA_10;
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Class.forName("java.util.Optional").getMethod("isEmpty");
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ver = JAVA_11;
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} catch (final Throwable t) {
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}
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MAJOR_VERSION = ver;
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}
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public static final int getVersion() {
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return MAJOR_VERSION;
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}
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}
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