Java虚拟机是如何加载Java类的？  这个问题也就是面试常问到的Java类加载机制。在年初面试百战之后，菜鸟喜鹊也是能把这流程倒背如流啊！但是，也只是字面上的背诵，根本就是像上学时背书考试一样。

tonight ！ 我们把它映射到实战里，看看如何用代码说明这个流程。

ready! go!  ----------------在这之前还是搞点理论吧，不然又要先去百度加载机制流程了。

一、类加载机制(理论部分)

类加载机制有三大过程：加载、链接、初始化。其中链接又细分为验证、准备及解析。

Java语言的类型分为两大类：基本类型和引用类型。Java的基本类型是由Java虚拟机预先定义好的。而引用类型又分为：数组类、类、接口、泛型参数。在JVM中，只存在数组类、类、接口三类，而数组类是直接由Java虚拟机直接生成的，其他两类则有字节流而来。

字节流又是怎么来呢？最常见的还是从字节码文件而来(还可以从网络等而来)。所以，我就以字节码文件分析一下加载机制。

1.加载

加载是指查找字节流，并据此创建类的过程。对于数组类来说，它们是可以由Java虚拟机直接生成。而其他两类，却需要借助类加载器，Java虚拟机才能完成查找字节流的工作。

类加载器与类的关系就像是UI与效果图一样，需要将业务需求翻译成效果图。美丽的UI就是类加载器，效果图就是类。

类加载器有一个模型：双亲委派。

双亲委派模型是每次收到类加载请求时，先将请求委派给父类加载器完成，如果父类加载器无法完成加载，那么子类尝试自己加载

类加载器分为三种，启动类加载器、扩展类加载器、应用类加载器。

其中，

启动类加载器(Application ClassLoader)是负责加载最为基础、最为重要的类，即加载\lib目录下核心库

扩展类加载器的父类加载器是启动类加载器，扩展类加载器负责加载相对次要、但又通用的类，即加载\lib\ext目录下扩展包

应用类加载器的父类加载器是扩展类加载器，应用类加载器负责加载应用程序路径下的类，即用户路径(classpath)上指定的类库

这三者类加载器的关系可以这样描述：

每当类加载器接收到加载请求时，它会先将请求转发给父类加载器，在父类加载器中没有找到需要的类的情况下，该加载器才会尝试去加载。

比如，应用加载器接收到加载请求，会先去找父类加载器(扩展类加载器)里有没有需要的类，但该扩展类加载器顶头还有父类加载器(启动类加载器)，所以还要去启动类加载器中查找是否存在需要的类，如果不存在，那扩展类加载器就会自己加载需要的类，然后把引用传递给应用加载器。

类加载器还有一个功能，就是提供命名空间的作用。

在Java虚拟机中，类的唯一性是由类加载器实例以及类的全名一同确定的。即便是同一串字节流，经过不同的类加载器加载，也会得到两个不同的类。(这里可以读者自己实现一下，用两个扩展类加载器加载同一个类，然后打印一下类信息就可以验证了)

2.链接

链接：将创建成的类合并至Java虚拟机中，使之能够执行的过程。(这里是下面代码要验证一个步骤)

链接分为验证、准备、解析。

验证的目的是为了让被加载的类能够满足Java虚拟机的约束。(关于约束条件，今天暂时不讲。)

准备的目的是为了被加载类的静态字段分配内存。(仅仅是分配内存，并没有在内存中写东西)除此之外，有些Java虚拟机还会用来实现虚方法的动态绑定的方法表。

下一步就是我们链接的重要步骤--解析

对于一个方法的调用，编译器会解析一个符号，这个符号能够无歧义地定位到具体的目标上。这个符号包含目标方法所在类的名字、目标方法的名字、接收的参数类型以及返回值类型的符号引用。

如果符号引用指向一个未被加载的类、字段、方法，那么这个解析将触发加载功能。

3.初始化

初始化：为标记为常量值的字段赋值，以及执行方法的过程。

只有初始化完成之后，类才正式成为可执行的状态。

那初始化这个步骤是什么时候执行呢？

JVM规范枚举了下述多种触发初始化的情况：

理论部分讲解完了。(参考链接：https://time.geekbang.org/column/article/11523)

二、类加载机制(Linux查看字节码)

在这，主要是因为网上都是一大串的理论描述，看得也是半信半疑。还不如拿出代码来，让自己也心服口服了。

talk is cheap,show the code!

1.classloader

输出如下：

结果很惊人，为什么父类加载器的父类加载器(我自己取名为爷爷类加载器。。)，照理论来说，应该打印的是bootstrapClassLoader。 其实是它隐身了。贴一下代码里的一段注释：

* Returns the parent class loader for delegation. Some implementations may

* use null to represent the bootstrap class loader. This method

* will return null in such implementations if this class loader's

* parent is the bootstrap class loader.

翻译黄色的句子就是：如果父类加载器是启动类加载器，则将返回null

但还是没解决怎么找bootstrapClassLoader啊。

它实际上不是 java.lang.ClassLoader的子类，而是由JVM自身实现的，我们可以通过这个方法得到实现的类路径。

URL[] urls=sun.misc.Launcher.getBootstrapClassPath().getURLs();

2.链接

3.初始化

1.编译的单例类：Singleton.java

public classSingleton{privateSingleton(){}private static classLazyHolder{static final Singleton INSTANCE = newSingleton();static{

System.out.println("LazyHolder.");

}

}public static Object getInstance(booleanflag){if(flag) return new LazyHolder[2];returnLazyHolder.INSTANCE;

}public static voidmain(String... args){

System.out.println("---");

getInstance(true);

System.out.println("---");

getInstance(false);

}

}

2.编译并运行

[root@localhost tmp3]# javac Singleton.java

[root@localhost tmp3]# java Singleton---

---LazyHolder.

3.查看字节码文件(用的新指令：java -verbose:class Singleton)

结合2,3的输出，我想，我该讲点啥。

在两段“-----”中，如果没有打印加载信息，我们就以为是连续输出了。但是并没有。根据加载信息来看，中间还会加载Singleton$LazyHolder这个内部类，而这一步，对应的就是getInstance(true)；。说明了啥？说明了前面理论部分的链接的最后一句话：

如果符号引用指向一个未被加载的类、字段、方法，那么这个解析将触发加载功能。

这里注意的是，仅仅调用了加载功能而已，这里只完成了创建类而已，并没有让它继续进行链接和初始化功能。所以在这里，也就不会出现打印“LazyHolder.”的字样。

当使用到了getInstance(true)的时候，由于需要使用到“LazyHolder.INSTANCE;”这个静态常量，而它又与new 构造器方法相连通，此时就满足了理论中初始化的解释：

2.当遇到用以新建目标类实例的new指令时，初始化new指令的目标类

3.当遇到访问静态字段的指令时，初始化该静态字段所在的类

在这，大家应该也有疑问：getInstance(false)的时候也有new啊。但是，false时候的new，只是new数组，数组里装的只是加载时候生成的类引用。

大家还可以看下面class字节码就知道，注释那里就标记着很清楚是类引用而已。

Singleton.class

public static java.lang.Object getInstance(boolean);

descriptor: (Z)Ljava/lang/Object;

flags: ACC_PUBLIC, ACC_STATIC

Code:

stack=1, locals=1, args_size=1

0: iload_01: ifeq 9

4: iconst_25: anewarray #3 //class Singleton$LazyHolder

8: areturn9: getstatic #4 //Field Singleton$LazyHolder.INSTANCE:LSingleton;

12: areturn

LineNumberTable:

line11: 0line12: 9StackMapTable: number_of_entries= 1frame_type= 9 /*same*/

public static voidmain(java.lang.String...);

descriptor: ([Ljava/lang/String;)V

flags: ACC_PUBLIC, ACC_STATIC, ACC_VARARGS

Code:

stack=2, locals=1, args_size=1

0: getstatic #5 //Field java/lang/System.out:Ljava/io/PrintStream;

3: ldc #6 //String ---

5: invokevirtual #7 //Method java/io/PrintStream.println:(Ljava/lang/String;)V

8: iconst_19: invokestatic #8 //Method getInstance:(Z)Ljava/lang/Object;

12: pop13: getstatic #5 //Field java/lang/System.out:Ljava/io/PrintStream;

16: ldc #6 //String ---

18: invokevirtual #7 //Method java/io/PrintStream.println:(Ljava/lang/String;)V

21: iconst_022: invokestatic #8 //Method getInstance:(Z)Ljava/lang/Object;

25: pop26: returnLineNumberTable:

line15: 0line16: 8line17: 13line18: 21line19: 26Singleton(Singleton$1);

descriptor: (LSingleton$1;)V

flags: ACC_SYNTHETIC

Code:

stack=1, locals=2, args_size=2

0: aload_01: invokespecial #1 //Method "":()V

4: returnLineNumberTable:

line1: 0}

可以看到，在getInstance中，那么#3 和#4 对应的是啥

现在，

看了例子之后，大家应该也对类加载机制有了一点点了解了吧。

附：java -verbose:class Singleton 显示的全部信息

1 [root@localhost tmp3]# java -verbose:classSingleton2 [Opened /usr/local/jdk1.8.0_111/jre/lib/rt.jar]3 [Loaded java.lang.Object from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]4 [Loaded java.io.Serializable from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]5 [Loaded java.lang.Comparable from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]6 [Loaded java.lang.CharSequence from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]7 [Loaded java.lang.String from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]8 [Loaded java.lang.reflect.AnnotatedElement from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]9 [Loaded java.lang.reflect.GenericDeclaration from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]10 [Loaded java.lang.reflect.Type from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]11 [Loaded java.lang.Class from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]12 [Loaded java.lang.Cloneable from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]13 [Loaded java.lang.ClassLoader from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]14 [Loaded java.lang.System from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]15 [Loaded java.lang.Throwable from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]16 [Loaded java.lang.Error from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]17 [Loaded java.lang.ThreadDeath from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]18 [Loaded java.lang.Exception from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]19 [Loaded java.lang.RuntimeException from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]20 [Loaded java.lang.SecurityManager from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]21 [Loaded java.security.ProtectionDomain from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]22 [Loaded java.security.AccessControlContext from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]23 [Loaded java.security.SecureClassLoader from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]24 [Loaded java.lang.ReflectiveOperationException from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]25 [Loaded java.lang.ClassNotFoundException from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]26 [Loaded java.lang.LinkageError from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]27 [Loaded java.lang.NoClassDefFoundError from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]28 [Loaded java.lang.ClassCastException from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]29 [Loaded java.lang.ArrayStoreException from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]30 [Loaded java.lang.VirtualMachineError from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]31 [Loaded java.lang.OutOfMemoryError from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]32 [Loaded java.lang.StackOverflowError from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]33 [Loaded java.lang.IllegalMonitorStateException from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]34 [Loaded java.lang.ref.Reference from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]35 [Loaded java.lang.ref.SoftReference from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]36 [Loaded java.lang.ref.WeakReference from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]37 [Loaded java.lang.ref.FinalReference from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]38 [Loaded java.lang.ref.PhantomReference from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]39 [Loaded sun.misc.Cleaner from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]40 [Loaded java.lang.ref.Finalizer from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]41 [Loaded java.lang.Runnable from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]42 [Loaded java.lang.Thread from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]43 [Loaded java.lang.Thread$UncaughtExceptionHandler from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]44 [Loaded java.lang.ThreadGroup from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]45 [Loaded java.util.Map from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]46 [Loaded java.util.Dictionary from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]47 [Loaded java.util.Hashtable from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]48 [Loaded java.util.Properties from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]49 [Loaded java.lang.reflect.AccessibleObject from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]50 [Loaded java.lang.reflect.Member from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]51 [Loaded java.lang.reflect.Field from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]52 [Loaded java.lang.reflect.Parameter from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]53 [Loaded java.lang.reflect.Executable from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]54 [Loaded java.lang.reflect.Method from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]55 [Loaded java.lang.reflect.Constructor from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]56 [Loaded sun.reflect.MagicAccessorImpl from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]57 [Loaded sun.reflect.MethodAccessor from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]58 [Loaded sun.reflect.MethodAccessorImpl from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]59 [Loaded sun.reflect.ConstructorAccessor from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]60 [Loaded sun.reflect.ConstructorAccessorImpl from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]61 [Loaded sun.reflect.DelegatingClassLoader from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]62 [Loaded sun.reflect.ConstantPool from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]63 [Loaded sun.reflect.FieldAccessor from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]64 [Loaded sun.reflect.FieldAccessorImpl from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]65 [Loaded sun.reflect.UnsafeFieldAccessorImpl from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]66 [Loaded sun.reflect.UnsafeStaticFieldAccessorImpl from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]67 [Loaded java.lang.annotation.Annotation from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]68 [Loaded sun.reflect.CallerSensitive from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]69 [Loaded java.lang.invoke.MethodHandle from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]70 [Loaded java.lang.invoke.DirectMethodHandle from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]71 [Loaded java.lang.invoke.MemberName from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]72 [Loaded java.lang.invoke.MethodHandleNatives from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]73 [Loaded java.lang.invoke.LambdaForm from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]74 [Loaded java.lang.invoke.MethodType from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]75 [Loaded java.lang.BootstrapMethodError from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]76 [Loaded java.lang.invoke.CallSite from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]77 [Loaded java.lang.invoke.ConstantCallSite from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]78 [Loaded java.lang.invoke.MutableCallSite from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]79 [Loaded java.lang.invoke.VolatileCallSite from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]80 [Loaded java.lang.Appendable from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]81 [Loaded java.lang.AbstractStringBuilder from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]82 [Loaded java.lang.StringBuffer from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]83 [Loaded java.lang.StringBuilder from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]84 [Loaded sun.misc.Unsafe from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]85 [Loaded java.lang.AutoCloseable from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]86 [Loaded java.io.Closeable from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]87 [Loaded java.io.InputStream from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]88 [Loaded java.io.ByteArrayInputStream from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]89 [Loaded java.io.File from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]90 [Loaded java.net.URLClassLoader from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]91 [Loaded java.net.URL from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]92 [Loaded java.util.jar.Manifest from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]93 [Loaded sun.misc.Launcher from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]94 [Loaded sun.misc.Launcher$AppClassLoader from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]95 [Loaded sun.misc.Launcher$ExtClassLoader from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]96 [Loaded java.security.CodeSource from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]97 [Loaded java.lang.StackTraceElement from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]98 [Loaded java.nio.Buffer from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]99 [Loaded java.lang.Boolean from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]100 [Loaded java.lang.Character from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]101 [Loaded java.lang.Number from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]102 [Loaded java.lang.Float from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]103 [Loaded java.lang.Double from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]104 [Loaded java.lang.Byte from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]105 [Loaded java.lang.Short from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]106 [Loaded java.lang.Integer from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]107 [Loaded java.lang.Long from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]108 [Loaded java.lang.NullPointerException from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]109 [Loaded java.lang.ArithmeticException from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]110 [Loaded java.io.ObjectStreamField from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]111 [Loaded java.util.Comparator from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]112 [Loaded java.lang.String$CaseInsensitiveComparator from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]113 [Loaded java.security.Guard from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]114 [Loaded java.security.Permission from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]115 [Loaded java.security.BasicPermission from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]116 [Loaded java.lang.RuntimePermission from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]117 [Loaded java.security.AccessController from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]118 [Loaded java.lang.reflect.ReflectPermission from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]119 [Loaded java.security.PrivilegedAction from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]120 [Loaded sun.reflect.ReflectionFactory$GetReflectionFactoryAction from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]121 [Loaded java.security.cert.Certificate from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]122 [Loaded java.lang.Iterable from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]123 [Loaded java.util.Collection from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]124 [Loaded java.util.List from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]125 [Loaded java.util.RandomAccess from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]126 [Loaded java.util.AbstractCollection from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]127 [Loaded java.util.AbstractList from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]128 [Loaded java.util.Vector from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]129 [Loaded java.util.Stack from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]130 [Loaded sun.reflect.ReflectionFactory from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]131 [Loaded java.lang.ref.Reference$Lock from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]132 [Loaded java.lang.ref.Reference$ReferenceHandler from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]133 [Loaded java.lang.InterruptedException from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]134 [Loaded java.util.ArrayList from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]135 [Loaded java.util.Collections from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]136 [Loaded java.util.Set from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]137 [Loaded java.util.AbstractSet from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]138 [Loaded java.util.Collections$EmptySet from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]139 [Loaded java.util.Collections$EmptyList from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]140 [Loaded java.util.AbstractMap from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]141 [Loaded java.util.Collections$EmptyMap from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]142 [Loaded java.util.Collections$UnmodifiableCollection from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]143 [Loaded java.util.Collections$UnmodifiableList from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]144 [Loaded java.util.Collections$UnmodifiableRandomAccessList from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]145 [Loaded java.lang.ref.ReferenceQueue from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]146 [Loaded java.lang.ref.ReferenceQueue$Null from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]147 [Loaded java.lang.ref.ReferenceQueue$Lock from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]148 [Loaded sun.misc.JavaLangRefAccess from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]149 [Loaded java.lang.ref.Reference$1 from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]150 [Loaded sun.misc.SharedSecrets from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]151 [Loaded java.lang.IncompatibleClassChangeError from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]152 [Loaded java.lang.NoSuchMethodError from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]153 [Loaded sun.reflect.Reflection from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]154 [Loaded java.util.HashMap from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]155 [Loaded java.util.Map$Entry from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]156 [Loaded java.util.HashMap$Node from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]157 [Loaded sun.misc.VM from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]158 [Loaded java.util.Hashtable$Entry from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]159 [Loaded java.lang.Math from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]160 [Loaded java.lang.ref.Finalizer$FinalizerThread from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]161 [Loaded java.nio.charset.Charset from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]162 [Loaded java.nio.charset.spi.CharsetProvider from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]163 [Loaded sun.nio.cs.FastCharsetProvider from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]164 [Loaded sun.nio.cs.StandardCharsets from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]165 [Loaded sun.util.PreHashedMap from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]166 [Loaded sun.nio.cs.StandardCharsets$Aliases from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]167 [Loaded sun.nio.cs.StandardCharsets$Classes from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]168 [Loaded sun.nio.cs.StandardCharsets$Cache from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]169 [Loaded java.lang.ThreadLocal from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]170 [Loaded java.util.concurrent.atomic.AtomicInteger from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]171 [Loaded java.lang.Class$3 from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]172 [Loaded java.lang.Class$ReflectionData from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]173 [Loaded java.lang.Class$Atomic from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]174 [Loaded sun.reflect.generics.repository.AbstractRepository from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]175 [Loaded sun.reflect.generics.repository.GenericDeclRepository from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]176 [Loaded sun.reflect.generics.repository.ClassRepository from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]177 [Loaded java.lang.Class$AnnotationData from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]178 [Loaded sun.reflect.annotation.AnnotationType from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]179 [Loaded java.util.WeakHashMap from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]180 [Loaded java.lang.ClassValue$ClassValueMap from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]181 [Loaded java.lang.reflect.Modifier from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]182 [Loaded sun.reflect.LangReflectAccess from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]183 [Loaded java.lang.reflect.ReflectAccess from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]184 [Loaded java.util.Arrays from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]185 [Loaded sun.nio.cs.HistoricallyNamedCharset from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]186 [Loaded sun.nio.cs.Unicode from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]187 [Loaded sun.nio.cs.UTF_8 from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]188 [Loaded java.lang.Class$1 from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]189 [Loaded sun.reflect.ReflectionFactory$1 from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]190 [Loaded sun.reflect.NativeConstructorAccessorImpl from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]191 [Loaded sun.reflect.DelegatingConstructorAccessorImpl from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]192 [Loaded java.lang.StringCoding from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]193 [Loaded java.lang.ThreadLocal$ThreadLocalMap from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]194 [Loaded java.lang.ThreadLocal$ThreadLocalMap$Entry from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]195 [Loaded java.lang.StringCoding$StringDecoder from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]196 [Loaded sun.nio.cs.ArrayDecoder from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]197 [Loaded java.nio.charset.CharsetDecoder from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]198 [Loaded sun.nio.cs.UTF_8$Decoder from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]199 [Loaded java.nio.charset.CodingErrorAction from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]200 [Loaded java.util.Hashtable$EntrySet from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]201 [Loaded java.util.Collections$SynchronizedCollection from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]202 [Loaded java.util.Collections$SynchronizedSet from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]203 [Loaded java.util.Objects from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]204 [Loaded java.util.Enumeration from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]205 [Loaded java.util.Iterator from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]206 [Loaded java.util.Hashtable$Enumerator from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]207 [Loaded java.lang.Runtime from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]208 [Loaded sun.misc.Version from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]209 [Loaded java.io.FileInputStream from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]210 [Loaded java.io.FileDescriptor from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]211 [Loaded sun.misc.JavaIOFileDescriptorAccess from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]212 [Loaded java.io.FileDescriptor$1 from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]213 [Loaded java.io.Flushable from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]214 [Loaded java.io.OutputStream from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]215 [Loaded java.io.FileOutputStream from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]216 [Loaded java.io.FilterInputStream from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]217 [Loaded java.io.BufferedInputStream from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]218 [Loaded java.util.concurrent.atomic.AtomicReferenceFieldUpdater from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]219 [Loaded java.util.concurrent.atomic.AtomicReferenceFieldUpdater$AtomicReferenceFieldUpdaterImpl from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]220 [Loaded java.security.PrivilegedExceptionAction from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]221 [Loaded java.util.concurrent.atomic.AtomicReferenceFieldUpdater$AtomicReferenceFieldUpdaterImpl$1 from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]222 [Loaded sun.reflect.misc.ReflectUtil from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]223 [Loaded java.io.FilterOutputStream from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]224 [Loaded java.io.PrintStream from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]225 [Loaded java.io.BufferedOutputStream from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]226 [Loaded java.io.Writer from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]227 [Loaded java.io.OutputStreamWriter from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]228 [Loaded sun.nio.cs.StreamEncoder from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]229 [Loaded sun.security.action.GetPropertyAction from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]230 [Loaded sun.nio.cs.ArrayEncoder from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]231 [Loaded java.nio.charset.CharsetEncoder from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]232 [Loaded sun.nio.cs.UTF_8$Encoder from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]233 [Loaded java.nio.ByteBuffer from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]234 [Loaded java.nio.HeapByteBuffer from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]235 [Loaded java.nio.Bits from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]236 [Loaded java.nio.ByteOrder from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]237 [Loaded java.util.concurrent.atomic.AtomicLong from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]238 [Loaded sun.misc.JavaNioAccess from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]239 [Loaded java.nio.Bits$1 from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]240 [Loaded java.io.BufferedWriter from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]241 [Loaded java.io.DefaultFileSystem from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]242 [Loaded java.io.FileSystem from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]243 [Loaded java.io.UnixFileSystem from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]244 [Loaded java.io.ExpiringCache from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]245 [Loaded java.util.LinkedHashMap from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]246 [Loaded java.io.ExpiringCache$1 from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]247 [Loaded java.lang.Enum from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]248 [Loaded java.io.File$PathStatus from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]249 [Loaded java.nio.file.Watchable from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]250 [Loaded java.nio.file.Path from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]251 [Loaded java.lang.StringCoding$StringEncoder from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]252 [Loaded java.lang.ClassLoader$3 from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]253 [Loaded java.io.ExpiringCache$Entry from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]254 [Loaded java.util.LinkedHashMap$Entry from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]255 [Loaded java.lang.ClassLoader$NativeLibrary from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]256 [Loaded java.lang.Terminator from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]257 [Loaded sun.misc.SignalHandler from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]258 [Loaded java.lang.Terminator$1 from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]259 [Loaded sun.misc.Signal from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]260 [Loaded sun.misc.NativeSignalHandler from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]261 [Loaded java.lang.Integer$IntegerCache from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]262 [Loaded sun.misc.OSEnvironment from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]263 [Loaded sun.misc.JavaLangAccess from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]264 [Loaded java.lang.System$2 from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]265 [Loaded java.lang.IllegalArgumentException from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]266 [Loaded java.lang.Compiler from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]267 [Loaded java.lang.Compiler$1 from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]268 [Loaded java.net.URLStreamHandlerFactory from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]269 [Loaded sun.misc.Launcher$Factory from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]270 [Loaded sun.security.util.Debug from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]271 [Loaded java.lang.ClassLoader$ParallelLoaders from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]272 [Loaded java.util.WeakHashMap$Entry from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]273 [Loaded java.util.Collections$SetFromMap from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]274 [Loaded java.util.WeakHashMap$KeySet from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]275 [Loaded sun.misc.JavaNetAccess from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]276 [Loaded java.net.URLClassLoader$7 from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]277 [Loaded java.util.StringTokenizer from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]278 [Loaded sun.misc.Launcher$ExtClassLoader$1 from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]279 [Loaded sun.misc.MetaIndex from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]280 [Loaded java.lang.Readable from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]281 [Loaded java.io.Reader from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]282 [Loaded java.io.BufferedReader from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]283 [Loaded java.io.InputStreamReader from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]284 [Loaded java.io.FileReader from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]285 [Loaded sun.nio.cs.StreamDecoder from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]286 [Loaded java.nio.CharBuffer from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]287 [Loaded java.nio.HeapCharBuffer from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]288 [Loaded java.nio.charset.CoderResult from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]289 [Loaded java.nio.charset.CoderResult$Cache from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]290 [Loaded java.nio.charset.CoderResult$1 from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]291 [Loaded java.nio.charset.CoderResult$2 from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]292 [Loaded java.lang.reflect.Array from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]293 [Loaded java.util.HashMap$TreeNode from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]294 [Loaded java.io.FileInputStream$1 from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]295 [Loaded sun.net.www.ParseUtil from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]296 [Loaded java.util.BitSet from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]297 [Loaded java.util.Locale from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]298 [Loaded sun.util.locale.LocaleObjectCache from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]299 [Loaded java.util.Locale$Cache from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]300 [Loaded java.util.concurrent.ConcurrentMap from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]301 [Loaded java.util.concurrent.ConcurrentHashMap from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]302 [Loaded java.util.concurrent.locks.Lock from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]303 [Loaded java.util.concurrent.locks.ReentrantLock from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]304 [Loaded java.util.concurrent.ConcurrentHashMap$Segment from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]305 [Loaded java.util.concurrent.ConcurrentHashMap$Node from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]306 [Loaded java.util.concurrent.ConcurrentHashMap$CounterCell from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]307 [Loaded java.util.concurrent.ConcurrentHashMap$CollectionView from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]308 [Loaded java.util.concurrent.ConcurrentHashMap$KeySetView from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]309 [Loaded java.util.concurrent.ConcurrentHashMap$ValuesView from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]310 [Loaded java.util.concurrent.ConcurrentHashMap$EntrySetView from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]311 [Loaded sun.util.locale.BaseLocale from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]312 [Loaded sun.util.locale.BaseLocale$Cache from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]313 [Loaded sun.util.locale.BaseLocale$Key from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]314 [Loaded sun.util.locale.LocaleObjectCache$CacheEntry from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]315 [Loaded java.util.Locale$LocaleKey from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]316 [Loaded sun.util.locale.LocaleUtils from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]317 [Loaded java.lang.CharacterData from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]318 [Loaded java.lang.CharacterDataLatin1 from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]319 [Loaded java.net.Parts from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]320 [Loaded java.net.URLStreamHandler from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]321 [Loaded sun.net.www.protocol.file.Handler from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]322 [Loaded sun.misc.JavaSecurityAccess from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]323 [Loaded java.security.ProtectionDomain$JavaSecurityAccessImpl from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]324 [Loaded sun.misc.JavaSecurityProtectionDomainAccess from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]325 [Loaded java.security.ProtectionDomain$2 from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]326 [Loaded java.security.ProtectionDomain$Key from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]327 [Loaded java.security.Principal from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]328 [Loaded java.util.HashSet from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]329 [Loaded sun.misc.URLClassPath from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]330 [Loaded sun.net.www.protocol.jar.Handler from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]331 [Loaded sun.misc.Launcher$AppClassLoader$1 from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]332 [Loaded java.lang.SystemClassLoaderAction from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]333 [Loaded java.lang.invoke.MethodHandleImpl from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]334 [Loaded java.lang.invoke.MethodHandleImpl$1 from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]335 [Loaded java.util.function.Function from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]336 [Loaded java.lang.invoke.MethodHandleImpl$2 from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]337 [Loaded java.lang.invoke.MethodHandleImpl$3 from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]338 [Loaded java.lang.ClassValue from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]339 [Loaded java.lang.invoke.MethodHandleImpl$4 from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]340 [Loaded java.lang.ClassValue$Entry from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]341 [Loaded java.lang.ClassValue$Identity from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]342 [Loaded java.lang.ClassValue$Version from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]343 [Loaded java.lang.invoke.MemberName$Factory from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]344 [Loaded java.lang.invoke.MethodHandleStatics from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]345 [Loaded java.lang.invoke.MethodHandleStatics$1 from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]346 [Loaded sun.misc.PostVMInitHook from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]347 [Loaded sun.usagetracker.UsageTrackerClient from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]348 [Loaded java.util.concurrent.atomic.AtomicBoolean from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]349 [Loaded sun.usagetracker.UsageTrackerClient$1 from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]350 [Loaded sun.usagetracker.UsageTrackerClient$4 from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]351 [Loaded sun.usagetracker.UsageTrackerClient$3 from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]352 [Loaded java.io.FileOutputStream$1 from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]353 [Loaded sun.launcher.LauncherHelper from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]354 [Loaded java.net.URLClassLoader$1 from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]355 [Loaded sun.net.util.URLUtil from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]356 [Loaded sun.misc.URLClassPath$3 from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]357 [Loaded sun.misc.URLClassPath$Loader from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]358 [Loaded sun.misc.URLClassPath$JarLoader from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]359 [Loaded java.util.zip.ZipConstants from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]360 [Loaded java.util.zip.ZipFile from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]361 [Loaded sun.misc.JavaUtilZipFileAccess from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]362 [Loaded java.util.zip.ZipFile$1 from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]363 [Loaded sun.misc.URLClassPath$FileLoader from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]364 [Loaded sun.misc.Resource from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]365 [Loaded sun.misc.URLClassPath$FileLoader$1 from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]366 [Loaded sun.nio.ByteBuffered from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]367 [Loaded sun.misc.PerfCounter from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]368 [Loaded sun.misc.Perf$GetPerfAction from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]369 [Loaded sun.misc.Perf from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]370 [Loaded sun.misc.PerfCounter$CoreCounters from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]371 [Loaded sun.nio.ch.DirectBuffer from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]372 [Loaded java.nio.MappedByteBuffer from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]373 [Loaded java.nio.DirectByteBuffer from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]374 [Loaded java.nio.LongBuffer from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]375 [Loaded java.nio.DirectLongBufferU from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]376 [Loaded java.security.PermissionCollection from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]377 [Loaded java.security.Permissions from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]378 [Loaded java.net.URLConnection from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]379 [Loaded sun.net.www.URLConnection from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]380 [Loaded sun.net.www.protocol.file.FileURLConnection from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]381 [Loaded sun.net.www.MessageHeader from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]382 [Loaded java.io.FilePermission from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]383 [Loaded java.io.FilePermission$1 from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]384 [Loaded java.io.FilePermissionCollection from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]385 [Loaded java.security.AllPermission from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]386 [Loaded java.security.UnresolvedPermission from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]387 [Loaded java.security.BasicPermissionCollection from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]388 [Loaded Singleton from file:/usr/local/asmtools-7.0-build/binaries/lib/tmp3/]389 [Loaded sun.launcher.LauncherHelper$FXHelper from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]390 [Loaded java.lang.Class$MethodArray from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]391 [Loaded java.lang.Void from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]392 ---

393 [Loaded Singleton$LazyHolder from file:/usr/local/asmtools-7.0-build/binaries/lib/tmp3/]394 ---

395 LazyHolder.

396 [Loaded java.lang.Shutdown from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]397 [Loaded java.lang.Shutdown$Lock from /usr/local/jdk1.8.0_111/jre/lib/rt.jar]

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javap -verbose Singleton显示的全部信息

1 [root@localhost tmp3]# javap -verbose Singleton2 Classfile /usr/local/asmtools-7.0-build/binaries/lib/tmp3/Singleton.class

3 Last modified Aug 13, 2019; size 770bytes4 MD5 checksum 993ff066c953984c811ff7998d1a8e105 Compiled from "Singleton.java"

6 public classSingleton7 minor version: 0

8 major version: 52

9 flags: ACC_PUBLIC, ACC_SUPER10 Constant pool:11 #1 = Methodref #9.#26 //Singleton."":()V

12 #2 = Methodref #10.#26 //java/lang/Object."":()V

13 #3 = Class #27 //Singleton$LazyHolder

14 #4 = Fieldref #3.#28 //Singleton$LazyHolder.INSTANCE:LSingleton;

15 #5 = Fieldref #29.#30 //java/lang/System.out:Ljava/io/PrintStream;

16 #6 = String #31 //---

17 #7 = Methodref #32.#33 //java/io/PrintStream.println:(Ljava/lang/String;)V

18 #8 = Methodref #9.#34 //Singleton.getInstance:(Z)Ljava/lang/Object;

19 #9 = Class #35 //Singleton

20 #10 = Class #36 //java/lang/Object

21 #11 = Class #37 //Singleton$1

22 #12 =Utf8 InnerClasses23 #13 =Utf8 LazyHolder24 #14 = Utf8

25 #15 =Utf8 ()V26 #16 =Utf8 Code27 #17 =Utf8 LineNumberTable28 #18 =Utf8 getInstance29 #19 = Utf8 (Z)Ljava/lang/Object;30 #20 =Utf8 StackMapTable31 #21 =Utf8 main32 #22 = Utf8 ([Ljava/lang/String;)V33 #23 = Utf8 (LSingleton$1;)V34 #24 =Utf8 SourceFile35 #25 =Utf8 Singleton.java36 #26 = NameAndType #14:#15 //"":()V

37 #27 =Utf8 Singleton$LazyHolder38 #28 = NameAndType #38:#39 //INSTANCE:LSingleton;

39 #29 = Class #40 //java/lang/System

40 #30 = NameAndType #41:#42 //out:Ljava/io/PrintStream;

41 #31 = Utf8 ---

42 #32 = Class #43 //java/io/PrintStream

43 #33 = NameAndType #44:#45 //println:(Ljava/lang/String;)V

44 #34 = NameAndType #18:#19 //getInstance:(Z)Ljava/lang/Object;

45 #35 =Utf8 Singleton46 #36 = Utf8 java/lang/Object47 #37 = Utf8 Singleton$1

48 #38 =Utf8 INSTANCE49 #39 =Utf8 LSingleton;50 #40 = Utf8 java/lang/System51 #41 =Utf8 out52 #42 = Utf8 Ljava/io/PrintStream;53 #43 = Utf8 java/io/PrintStream54 #44 =Utf8 println55 #45 = Utf8 (Ljava/lang/String;)V56 {57 public static java.lang.Object getInstance(boolean);58 descriptor: (Z)Ljava/lang/Object;59 flags: ACC_PUBLIC, ACC_STATIC60 Code:61 stack=1, locals=1, args_size=1

62 0: iload_063 1: ifeq 9

64 4: iconst_265 5: anewarray #3 //class Singleton$LazyHolder

66 8: areturn67 9: getstatic #4 //Field Singleton$LazyHolder.INSTANCE:LSingleton;

68 12: areturn69 LineNumberTable:70 line 11: 0

71 line 12: 9

72 StackMapTable: number_of_entries = 1

73 frame_type = 9 /*same*/

74

75 public static voidmain(java.lang.String...);76 descriptor: ([Ljava/lang/String;)V77 flags: ACC_PUBLIC, ACC_STATIC, ACC_VARARGS78 Code:79 stack=2, locals=1, args_size=1

80 0: getstatic #5 //Field java/lang/System.out:Ljava/io/PrintStream;

81 3: ldc #6 //String ---

82 5: invokevirtual #7 //Method java/io/PrintStream.println:(Ljava/lang/String;)V

83 8: iconst_184 9: invokestatic #8 //Method getInstance:(Z)Ljava/lang/Object;

85 12: pop86 13: getstatic #5 //Field java/lang/System.out:Ljava/io/PrintStream;

87 16: ldc #6 //String ---

88 18: invokevirtual #7 //Method java/io/PrintStream.println:(Ljava/lang/String;)V

89 21: iconst_090 22: invokestatic #8 //Method getInstance:(Z)Ljava/lang/Object;

91 25: pop92 26: return

93 LineNumberTable:94 line 15: 0

95 line 16: 8

96 line 17: 13

97 line 18: 21

98 line 19: 26

99

100 Singleton(Singleton$1);101 descriptor: (LSingleton$1;)V102 flags: ACC_SYNTHETIC103 Code:104 stack=1, locals=2, args_size=2

105 0: aload_0106 1: invokespecial #1 //Method "":()V

107 4: return

108 LineNumberTable:109 line 1: 0

110 }111 SourceFile: "Singleton.java"

112 InnerClasses:113 static #11; //class Singleton$1

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