public class java.io.FileInputStream extends java.io.InputStream
  minor version: 0
  major version: 59
  flags: flags: (0x0021) ACC_PUBLIC, ACC_SUPER
  this_class: java.io.FileInputStream
  super_class: java.io.InputStream
{
  private final java.io.FileDescriptor fd;
    descriptor: Ljava/io/FileDescriptor;
    flags: (0x0012) ACC_PRIVATE, ACC_FINAL

  private final java.lang.String path;
    descriptor: Ljava/lang/String;
    flags: (0x0012) ACC_PRIVATE, ACC_FINAL

  private java.nio.channels.FileChannel channel;
    descriptor: Ljava/nio/channels/FileChannel;
    flags: (0x0002) ACC_PRIVATE

  private final java.lang.Object closeLock;
    descriptor: Ljava/lang/Object;
    flags: (0x0012) ACC_PRIVATE, ACC_FINAL

  private volatile boolean closed;
    descriptor: Z
    flags: (0x0042) ACC_PRIVATE, ACC_VOLATILE

  static void <clinit>();
    descriptor: ()V
    flags: (0x0008) ACC_STATIC
    Code:
      stack=0, locals=0, args_size=0
         0: .line 388
            invokestatic java.io.FileInputStream.initIDs:()V
         1: .line 389
            return
      LocalVariableTable:
        Start  End  Slot  Name  Signature

  public void <init>(java.lang.String);
    descriptor: (Ljava/lang/String;)V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=4, locals=2, args_size=2
        start local 0 // java.io.FileInputStream this
        start local 1 // java.lang.String name
         0: .line 93
            aload 0 /* this */
            aload 1 /* name */
            ifnull 1
            new java.io.File
            dup
            aload 1 /* name */
            invokespecial java.io.File.<init>:(Ljava/lang/String;)V
            goto 2
      StackMap locals:
      StackMap stack: uninitialized-this
         1: aconst_null
      StackMap locals: uninitialized-this java.lang.String
      StackMap stack: uninitialized-this java.io.File
         2: invokespecial java.io.FileInputStream.<init>:(Ljava/io/File;)V
         3: .line 94
            return
        end local 1 // java.lang.String name
        end local 0 // java.io.FileInputStream this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    4     0  this  Ljava/io/FileInputStream;
            0    4     1  name  Ljava/lang/String;
    Exceptions:
      throws java.io.FileNotFoundException
    MethodParameters:
      Name  Flags
      name  

  public void <init>(java.io.File);
    descriptor: (Ljava/io/File;)V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=3, locals=4, args_size=2
        start local 0 // java.io.FileInputStream this
        start local 1 // java.io.File file
         0: .line 123
            aload 0 /* this */
            invokespecial java.io.InputStream.<init>:()V
         1: .line 60
            aload 0 /* this */
            aconst_null
            putfield java.io.FileInputStream.channel:Ljava/nio/channels/FileChannel;
         2: .line 62
            aload 0 /* this */
            new java.lang.Object
            dup
            invokespecial java.lang.Object.<init>:()V
            putfield java.io.FileInputStream.closeLock:Ljava/lang/Object;
         3: .line 63
            aload 0 /* this */
            iconst_0
            putfield java.io.FileInputStream.closed:Z
         4: .line 124
            aload 1 /* file */
            ifnull 5
            aload 1 /* file */
            invokevirtual java.io.File.getPath:()Ljava/lang/String;
            goto 6
      StackMap locals: java.io.FileInputStream java.io.File
      StackMap stack:
         5: aconst_null
      StackMap locals:
      StackMap stack: java.lang.String
         6: astore 2 /* name */
        start local 2 // java.lang.String name
         7: .line 125
            invokestatic java.lang.System.getSecurityManager:()Ljava/lang/SecurityManager;
            astore 3 /* security */
        start local 3 // java.lang.SecurityManager security
         8: .line 126
            aload 3 /* security */
            ifnull 10
         9: .line 127
            aload 3 /* security */
            aload 2 /* name */
            invokevirtual java.lang.SecurityManager.checkRead:(Ljava/lang/String;)V
        10: .line 129
      StackMap locals: java.lang.String java.lang.SecurityManager
      StackMap stack:
            aload 2 /* name */
            ifnonnull 12
        11: .line 130
            new java.lang.NullPointerException
            dup
            invokespecial java.lang.NullPointerException.<init>:()V
            athrow
        12: .line 132
      StackMap locals:
      StackMap stack:
            aload 1 /* file */
            invokevirtual java.io.File.isInvalid:()Z
            ifeq 14
        13: .line 133
            new java.io.FileNotFoundException
            dup
            ldc "Invalid file path"
            invokespecial java.io.FileNotFoundException.<init>:(Ljava/lang/String;)V
            athrow
        14: .line 135
      StackMap locals:
      StackMap stack:
            aload 0 /* this */
            new java.io.FileDescriptor
            dup
            invokespecial java.io.FileDescriptor.<init>:()V
            putfield java.io.FileInputStream.fd:Ljava/io/FileDescriptor;
        15: .line 136
            aload 0 /* this */
            getfield java.io.FileInputStream.fd:Ljava/io/FileDescriptor;
            aload 0 /* this */
            invokevirtual java.io.FileDescriptor.attach:(Ljava/io/Closeable;)V
        16: .line 137
            aload 0 /* this */
            aload 2 /* name */
            putfield java.io.FileInputStream.path:Ljava/lang/String;
        17: .line 138
            aload 0 /* this */
            aload 2 /* name */
            invokevirtual java.io.FileInputStream.open:(Ljava/lang/String;)V
        18: .line 139
            return
        end local 3 // java.lang.SecurityManager security
        end local 2 // java.lang.String name
        end local 1 // java.io.File file
        end local 0 // java.io.FileInputStream this
      LocalVariableTable:
        Start  End  Slot      Name  Signature
            0   19     0      this  Ljava/io/FileInputStream;
            0   19     1      file  Ljava/io/File;
            7   19     2      name  Ljava/lang/String;
            8   19     3  security  Ljava/lang/SecurityManager;
    Exceptions:
      throws java.io.FileNotFoundException
    MethodParameters:
      Name  Flags
      file  

  public void <init>(java.io.FileDescriptor);
    descriptor: (Ljava/io/FileDescriptor;)V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=3, locals=3, args_size=2
        start local 0 // java.io.FileInputStream this
        start local 1 // java.io.FileDescriptor fdObj
         0: .line 165
            aload 0 /* this */
            invokespecial java.io.InputStream.<init>:()V
         1: .line 60
            aload 0 /* this */
            aconst_null
            putfield java.io.FileInputStream.channel:Ljava/nio/channels/FileChannel;
         2: .line 62
            aload 0 /* this */
            new java.lang.Object
            dup
            invokespecial java.lang.Object.<init>:()V
            putfield java.io.FileInputStream.closeLock:Ljava/lang/Object;
         3: .line 63
            aload 0 /* this */
            iconst_0
            putfield java.io.FileInputStream.closed:Z
         4: .line 166
            invokestatic java.lang.System.getSecurityManager:()Ljava/lang/SecurityManager;
            astore 2 /* security */
        start local 2 // java.lang.SecurityManager security
         5: .line 167
            aload 1 /* fdObj */
            ifnonnull 7
         6: .line 168
            new java.lang.NullPointerException
            dup
            invokespecial java.lang.NullPointerException.<init>:()V
            athrow
         7: .line 170
      StackMap locals: java.io.FileInputStream java.io.FileDescriptor java.lang.SecurityManager
      StackMap stack:
            aload 2 /* security */
            ifnull 9
         8: .line 171
            aload 2 /* security */
            aload 1 /* fdObj */
            invokevirtual java.lang.SecurityManager.checkRead:(Ljava/io/FileDescriptor;)V
         9: .line 173
      StackMap locals:
      StackMap stack:
            aload 0 /* this */
            aload 1 /* fdObj */
            putfield java.io.FileInputStream.fd:Ljava/io/FileDescriptor;
        10: .line 174
            aload 0 /* this */
            aconst_null
            putfield java.io.FileInputStream.path:Ljava/lang/String;
        11: .line 180
            aload 0 /* this */
            getfield java.io.FileInputStream.fd:Ljava/io/FileDescriptor;
            aload 0 /* this */
            invokevirtual java.io.FileDescriptor.attach:(Ljava/io/Closeable;)V
        12: .line 181
            return
        end local 2 // java.lang.SecurityManager security
        end local 1 // java.io.FileDescriptor fdObj
        end local 0 // java.io.FileInputStream this
      LocalVariableTable:
        Start  End  Slot      Name  Signature
            0   13     0      this  Ljava/io/FileInputStream;
            0   13     1     fdObj  Ljava/io/FileDescriptor;
            5   13     2  security  Ljava/lang/SecurityManager;
    MethodParameters:
       Name  Flags
      fdObj  

  private native void open0(java.lang.String);
    descriptor: (Ljava/lang/String;)V
    flags: (0x0102) ACC_PRIVATE, ACC_NATIVE
    Exceptions:
      throws java.io.FileNotFoundException
    MethodParameters:
      Name  Flags
      name  

  private void open(java.lang.String);
    descriptor: (Ljava/lang/String;)V
    flags: (0x0002) ACC_PRIVATE
    Code:
      stack=2, locals=2, args_size=2
        start local 0 // java.io.FileInputStream this
        start local 1 // java.lang.String name
         0: .line 195
            aload 0 /* this */
            aload 1 /* name */
            invokevirtual java.io.FileInputStream.open0:(Ljava/lang/String;)V
         1: .line 196
            return
        end local 1 // java.lang.String name
        end local 0 // java.io.FileInputStream this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    2     0  this  Ljava/io/FileInputStream;
            0    2     1  name  Ljava/lang/String;
    Exceptions:
      throws java.io.FileNotFoundException
    MethodParameters:
      Name  Flags
      name  

  public int read();
    descriptor: ()I
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // java.io.FileInputStream this
         0: .line 207
            aload 0 /* this */
            invokevirtual java.io.FileInputStream.read0:()I
            ireturn
        end local 0 // java.io.FileInputStream this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Ljava/io/FileInputStream;
    Exceptions:
      throws java.io.IOException

  private native int read0();
    descriptor: ()I
    flags: (0x0102) ACC_PRIVATE, ACC_NATIVE
    Exceptions:
      throws java.io.IOException

  private native int readBytes(byte[], int, int);
    descriptor: ([BII)I
    flags: (0x0102) ACC_PRIVATE, ACC_NATIVE
    Exceptions:
      throws java.io.IOException
    MethodParameters:
      Name  Flags
      b     
      off   
      len   

  public int read(byte[]);
    descriptor: ([B)I
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=4, locals=2, args_size=2
        start local 0 // java.io.FileInputStream this
        start local 1 // byte[] b
         0: .line 233
            aload 0 /* this */
            aload 1 /* b */
            iconst_0
            aload 1 /* b */
            arraylength
            invokevirtual java.io.FileInputStream.readBytes:([BII)I
            ireturn
        end local 1 // byte[] b
        end local 0 // java.io.FileInputStream this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Ljava/io/FileInputStream;
            0    1     1     b  [B
    Exceptions:
      throws java.io.IOException
    MethodParameters:
      Name  Flags
      b     

  public int read(byte[], int, int);
    descriptor: ([BII)I
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=4, locals=4, args_size=4
        start local 0 // java.io.FileInputStream this
        start local 1 // byte[] b
        start local 2 // int off
        start local 3 // int len
         0: .line 255
            aload 0 /* this */
            aload 1 /* b */
            iload 2 /* off */
            iload 3 /* len */
            invokevirtual java.io.FileInputStream.readBytes:([BII)I
            ireturn
        end local 3 // int len
        end local 2 // int off
        end local 1 // byte[] b
        end local 0 // java.io.FileInputStream this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Ljava/io/FileInputStream;
            0    1     1     b  [B
            0    1     2   off  I
            0    1     3   len  I
    Exceptions:
      throws java.io.IOException
    MethodParameters:
      Name  Flags
      b     
      off   
      len   

  public long skip(long);
    descriptor: (J)J
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=3, locals=3, args_size=2
        start local 0 // java.io.FileInputStream this
        start local 1 // long n
         0: .line 283
            aload 0 /* this */
            lload 1 /* n */
            invokevirtual java.io.FileInputStream.skip0:(J)J
            lreturn
        end local 1 // long n
        end local 0 // java.io.FileInputStream this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Ljava/io/FileInputStream;
            0    1     1     n  J
    Exceptions:
      throws java.io.IOException
    MethodParameters:
      Name  Flags
      n     

  private native long skip0(long);
    descriptor: (J)J
    flags: (0x0102) ACC_PRIVATE, ACC_NATIVE
    Exceptions:
      throws java.io.IOException
    MethodParameters:
      Name  Flags
      n     

  public int available();
    descriptor: ()I
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // java.io.FileInputStream this
         0: .line 306
            aload 0 /* this */
            invokevirtual java.io.FileInputStream.available0:()I
            ireturn
        end local 0 // java.io.FileInputStream this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Ljava/io/FileInputStream;
    Exceptions:
      throws java.io.IOException

  private native int available0();
    descriptor: ()I
    flags: (0x0102) ACC_PRIVATE, ACC_NATIVE
    Exceptions:
      throws java.io.IOException

  public void close();
    descriptor: ()V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=4, locals=2, args_size=1
        start local 0 // java.io.FileInputStream this
         0: .line 324
            aload 0 /* this */
            getfield java.io.FileInputStream.closeLock:Ljava/lang/Object;
            dup
            astore 1
            monitorenter
         1: .line 325
            aload 0 /* this */
            getfield java.io.FileInputStream.closed:Z
            ifeq 4
         2: .line 326
            aload 1
            monitorexit
         3: return
         4: .line 328
      StackMap locals: java.lang.Object
      StackMap stack:
            aload 0 /* this */
            iconst_1
            putfield java.io.FileInputStream.closed:Z
         5: .line 324
            aload 1
            monitorexit
         6: goto 9
      StackMap locals:
      StackMap stack: java.lang.Throwable
         7: aload 1
            monitorexit
         8: athrow
         9: .line 330
      StackMap locals:
      StackMap stack:
            aload 0 /* this */
            getfield java.io.FileInputStream.channel:Ljava/nio/channels/FileChannel;
            ifnull 11
        10: .line 331
            aload 0 /* this */
            getfield java.io.FileInputStream.channel:Ljava/nio/channels/FileChannel;
            invokevirtual java.nio.channels.FileChannel.close:()V
        11: .line 334
      StackMap locals:
      StackMap stack:
            aload 0 /* this */
            getfield java.io.FileInputStream.fd:Ljava/io/FileDescriptor;
            new java.io.FileInputStream$1
            dup
            aload 0 /* this */
            invokespecial java.io.FileInputStream$1.<init>:(Ljava/io/FileInputStream;)V
            invokevirtual java.io.FileDescriptor.closeAll:(Ljava/io/Closeable;)V
        12: .line 339
            return
        end local 0 // java.io.FileInputStream this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0   13     0  this  Ljava/io/FileInputStream;
      Exception table:
        from    to  target  type
           1     3       7  any
           4     6       7  any
           7     8       7  any
    Exceptions:
      throws java.io.IOException

  public final java.io.FileDescriptor getFD();
    descriptor: ()Ljava/io/FileDescriptor;
    flags: (0x0011) ACC_PUBLIC, ACC_FINAL
    Code:
      stack=2, locals=1, args_size=1
        start local 0 // java.io.FileInputStream this
         0: .line 352
            aload 0 /* this */
            getfield java.io.FileInputStream.fd:Ljava/io/FileDescriptor;
            ifnull 2
         1: .line 353
            aload 0 /* this */
            getfield java.io.FileInputStream.fd:Ljava/io/FileDescriptor;
            areturn
         2: .line 355
      StackMap locals:
      StackMap stack:
            new java.io.IOException
            dup
            invokespecial java.io.IOException.<init>:()V
            athrow
        end local 0 // java.io.FileInputStream this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    3     0  this  Ljava/io/FileInputStream;
    Exceptions:
      throws java.io.IOException

  public java.nio.channels.FileChannel getChannel();
    descriptor: ()Ljava/nio/channels/FileChannel;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=6, locals=2, args_size=1
        start local 0 // java.io.FileInputStream this
         0: .line 375
            aload 0 /* this */
            dup
            astore 1
            monitorenter
         1: .line 376
            aload 0 /* this */
            getfield java.io.FileInputStream.channel:Ljava/nio/channels/FileChannel;
            ifnonnull 3
         2: .line 377
            aload 0 /* this */
            aload 0 /* this */
            getfield java.io.FileInputStream.fd:Ljava/io/FileDescriptor;
            aload 0 /* this */
            getfield java.io.FileInputStream.path:Ljava/lang/String;
            iconst_1
            iconst_0
            aload 0 /* this */
            invokestatic sun.nio.ch.FileChannelImpl.open:(Ljava/io/FileDescriptor;Ljava/lang/String;ZZLjava/lang/Object;)Ljava/nio/channels/FileChannel;
            putfield java.io.FileInputStream.channel:Ljava/nio/channels/FileChannel;
         3: .line 379
      StackMap locals: java.io.FileInputStream
      StackMap stack:
            aload 0 /* this */
            getfield java.io.FileInputStream.channel:Ljava/nio/channels/FileChannel;
            aload 1
            monitorexit
         4: areturn
         5: .line 375
      StackMap locals:
      StackMap stack: java.lang.Throwable
            aload 1
            monitorexit
         6: athrow
        end local 0 // java.io.FileInputStream this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    7     0  this  Ljava/io/FileInputStream;
      Exception table:
        from    to  target  type
           1     4       5  any
           5     6       5  any

  private static native void initIDs();
    descriptor: ()V
    flags: (0x010a) ACC_PRIVATE, ACC_STATIC, ACC_NATIVE

  private native void close0();
    descriptor: ()V
    flags: (0x0102) ACC_PRIVATE, ACC_NATIVE
    Exceptions:
      throws java.io.IOException

  protected void finalize();
    descriptor: ()V
    flags: (0x0004) ACC_PROTECTED
    Code:
      stack=2, locals=1, args_size=1
        start local 0 // java.io.FileInputStream this
         0: .line 399
            aload 0 /* this */
            getfield java.io.FileInputStream.fd:Ljava/io/FileDescriptor;
            ifnull 2
            aload 0 /* this */
            getfield java.io.FileInputStream.fd:Ljava/io/FileDescriptor;
            getstatic java.io.FileDescriptor.in:Ljava/io/FileDescriptor;
            if_acmpeq 2
         1: .line 405
            aload 0 /* this */
            invokevirtual java.io.FileInputStream.close:()V
         2: .line 407
      StackMap locals:
      StackMap stack:
            return
        end local 0 // java.io.FileInputStream this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    3     0  this  Ljava/io/FileInputStream;
    Exceptions:
      throws java.io.IOException
}
SourceFile: "FileInputStream.java"
NestMembers:
  java.io.FileInputStream$1
InnerClasses:
  java.io.FileInputStream$1