49 import java.nio.channels.Channel;
  50 import java.nio.channels.spi.SelectorProvider;
  51 import java.nio.charset.Charset;
  52 import java.util.Iterator;
  53 import java.util.List;
  54 import java.util.Map;
  55 import java.util.Objects;
  56 import java.util.Properties;
  57 import java.util.PropertyPermission;
  58 import java.util.ResourceBundle;
  59 import java.util.function.Supplier;
  60 import java.util.concurrent.ConcurrentHashMap;
  61 import java.util.stream.Stream;
  62 
  63 import jdk.internal.util.StaticProperty;
  64 import jdk.internal.module.ModuleBootstrap;
  65 import jdk.internal.module.ServicesCatalog;
  66 import jdk.internal.reflect.CallerSensitive;
  67 import jdk.internal.reflect.Reflection;
  68 import jdk.internal.HotSpotIntrinsicCandidate;
  69 import jdk.internal.misc.JavaLangAccess;
  70 import jdk.internal.misc.SharedSecrets;
  71 import jdk.internal.misc.VM;
  72 import jdk.internal.logger.LoggerFinderLoader;
  73 import jdk.internal.logger.LazyLoggers;
  74 import jdk.internal.logger.LocalizedLoggerWrapper;
  75 import jdk.internal.vm.annotation.Stable;
  76 import sun.reflect.annotation.AnnotationType;
  77 import sun.nio.ch.Interruptible;
  78 import sun.security.util.SecurityConstants;
  79 
  80 /**
  81  * The {@code System} class contains several useful class fields
  82  * and methods. It cannot be instantiated.
  83  *
  84  * Among the facilities provided by the {@code System} class
  85  * are standard input, standard output, and error output streams;
  86  * access to externally defined properties and environment
  87  * variables; a means of loading files and libraries; and a utility
  88  * method for quickly copying a portion of an array.
  89  *
  90  * @since   1.0

  49 import java.nio.channels.Channel;
  50 import java.nio.channels.spi.SelectorProvider;
  51 import java.nio.charset.Charset;
  52 import java.util.Iterator;
  53 import java.util.List;
  54 import java.util.Map;
  55 import java.util.Objects;
  56 import java.util.Properties;
  57 import java.util.PropertyPermission;
  58 import java.util.ResourceBundle;
  59 import java.util.function.Supplier;
  60 import java.util.concurrent.ConcurrentHashMap;
  61 import java.util.stream.Stream;
  62 
  63 import jdk.internal.util.StaticProperty;
  64 import jdk.internal.module.ModuleBootstrap;
  65 import jdk.internal.module.ServicesCatalog;
  66 import jdk.internal.reflect.CallerSensitive;
  67 import jdk.internal.reflect.Reflection;
  68 import jdk.internal.HotSpotIntrinsicCandidate;
  69 import jdk.internal.access.JavaLangAccess;
  70 import jdk.internal.access.SharedSecrets;
  71 import jdk.internal.misc.VM;
  72 import jdk.internal.logger.LoggerFinderLoader;
  73 import jdk.internal.logger.LazyLoggers;
  74 import jdk.internal.logger.LocalizedLoggerWrapper;
  75 import jdk.internal.vm.annotation.Stable;
  76 import sun.reflect.annotation.AnnotationType;
  77 import sun.nio.ch.Interruptible;
  78 import sun.security.util.SecurityConstants;
  79 
  80 /**
  81  * The {@code System} class contains several useful class fields
  82  * and methods. It cannot be instantiated.
  83  *
  84  * Among the facilities provided by the {@code System} class
  85  * are standard input, standard output, and error output streams;
  86  * access to externally defined properties and environment
  87  * variables; a means of loading files and libraries; and a utility
  88  * method for quickly copying a portion of an array.
  89  *
  90  * @since   1.0