public abstract class java.awt.GraphicsEnvironment
minor version: 0
major version: 59
flags: flags: (0x0421) ACC_PUBLIC, ACC_SUPER, ACC_ABSTRACT
this_class: java.awt.GraphicsEnvironment
super_class: java.lang.Object
{
private static java.awt.GraphicsEnvironment localEnv;
descriptor: Ljava/awt/GraphicsEnvironment;
flags: (0x000a) ACC_PRIVATE, ACC_STATIC
private static java.lang.Boolean headless;
descriptor: Ljava/lang/Boolean;
flags: (0x000a) ACC_PRIVATE, ACC_STATIC
private static java.lang.Boolean defaultHeadless;
descriptor: Ljava/lang/Boolean;
flags: (0x000a) ACC_PRIVATE, ACC_STATIC
protected void <init>();
descriptor: ()V
flags: (0x0004) ACC_PROTECTED
Code:
stack=1, locals=1, args_size=1
start local 0 0: aload 0
invokespecial java.lang.Object.<init>:()V
1: return
end local 0 LocalVariableTable:
Start End Slot Name Signature
0 2 0 this Ljava/awt/GraphicsEnvironment;
public static synchronized java.awt.GraphicsEnvironment getLocalGraphicsEnvironment();
descriptor: ()Ljava/awt/GraphicsEnvironment;
flags: (0x0029) ACC_PUBLIC, ACC_STATIC, ACC_SYNCHRONIZED
Code:
stack=1, locals=0, args_size=0
0: getstatic java.awt.GraphicsEnvironment.localEnv:Ljava/awt/GraphicsEnvironment;
ifnonnull 2
1: invokestatic java.awt.GraphicsEnvironment.createGE:()Ljava/awt/GraphicsEnvironment;
putstatic java.awt.GraphicsEnvironment.localEnv:Ljava/awt/GraphicsEnvironment;
2: StackMap locals:
StackMap stack:
getstatic java.awt.GraphicsEnvironment.localEnv:Ljava/awt/GraphicsEnvironment;
areturn
LocalVariableTable:
Start End Slot Name Signature
private static java.awt.GraphicsEnvironment createGE();
descriptor: ()Ljava/awt/GraphicsEnvironment;
flags: (0x000a) ACC_PRIVATE, ACC_STATIC
Code:
stack=5, locals=4, args_size=0
0: new sun.security.action.GetPropertyAction
dup
ldc "java.awt.graphicsenv"
aconst_null
invokespecial sun.security.action.GetPropertyAction.<init>:(Ljava/lang/String;Ljava/lang/String;)V
invokestatic java.security.AccessController.doPrivileged:(Ljava/security/PrivilegedAction;)Ljava/lang/Object;
checkcast java.lang.String
astore 1
start local 1 1: aload 1
invokestatic java.lang.Class.forName:(Ljava/lang/String;)Ljava/lang/Class;
astore 2
start local 2 2: goto 6
end local 2 StackMap locals: top java.lang.String
StackMap stack: java.lang.ClassNotFoundException
3: pop
4: invokestatic java.lang.ClassLoader.getSystemClassLoader:()Ljava/lang/ClassLoader;
astore 3
start local 3 5: aload 1
iconst_1
aload 3
invokestatic java.lang.Class.forName:(Ljava/lang/String;ZLjava/lang/ClassLoader;)Ljava/lang/Class;
astore 2
end local 3 start local 2 6: StackMap locals: java.lang.Class
StackMap stack:
aload 2
invokevirtual java.lang.Class.newInstance:()Ljava/lang/Object;
checkcast java.awt.GraphicsEnvironment
astore 0
start local 0 7: invokestatic java.awt.GraphicsEnvironment.isHeadless:()Z
ifeq 20
8: new sun.java2d.HeadlessGraphicsEnvironment
dup
aload 0
invokespecial sun.java2d.HeadlessGraphicsEnvironment.<init>:(Ljava/awt/GraphicsEnvironment;)V
astore 0
end local 2 9: goto 20
end local 0 StackMap locals: top java.lang.String
StackMap stack: java.lang.ClassNotFoundException
10: pop
11: new java.lang.Error
dup
new java.lang.StringBuilder
dup
ldc "Could not find class: "
invokespecial java.lang.StringBuilder.<init>:(Ljava/lang/String;)V
aload 1
invokevirtual java.lang.StringBuilder.append:(Ljava/lang/String;)Ljava/lang/StringBuilder;
invokevirtual java.lang.StringBuilder.toString:()Ljava/lang/String;
invokespecial java.lang.Error.<init>:(Ljava/lang/String;)V
athrow
12: StackMap locals:
StackMap stack: java.lang.InstantiationException
pop
13: new java.lang.Error
dup
new java.lang.StringBuilder
dup
ldc "Could not instantiate Graphics Environment: "
invokespecial java.lang.StringBuilder.<init>:(Ljava/lang/String;)V
14: aload 1
invokevirtual java.lang.StringBuilder.append:(Ljava/lang/String;)Ljava/lang/StringBuilder;
invokevirtual java.lang.StringBuilder.toString:()Ljava/lang/String;
15: invokespecial java.lang.Error.<init>:(Ljava/lang/String;)V
athrow
16: StackMap locals:
StackMap stack: java.lang.IllegalAccessException
pop
17: new java.lang.Error
dup
new java.lang.StringBuilder
dup
ldc "Could not access Graphics Environment: "
invokespecial java.lang.StringBuilder.<init>:(Ljava/lang/String;)V
18: aload 1
invokevirtual java.lang.StringBuilder.append:(Ljava/lang/String;)Ljava/lang/StringBuilder;
invokevirtual java.lang.StringBuilder.toString:()Ljava/lang/String;
19: invokespecial java.lang.Error.<init>:(Ljava/lang/String;)V
athrow
start local 0 20: StackMap locals: java.awt.GraphicsEnvironment java.lang.String
StackMap stack:
aload 0
areturn
end local 1 end local 0 LocalVariableTable:
Start End Slot Name Signature
7 10 0 ge Ljava/awt/GraphicsEnvironment;
20 21 0 ge Ljava/awt/GraphicsEnvironment;
1 21 1 nm Ljava/lang/String;
2 3 2 geCls Ljava/lang/Class<Ljava/awt/GraphicsEnvironment;>;
6 9 2 geCls Ljava/lang/Class<Ljava/awt/GraphicsEnvironment;>;
5 6 3 cl Ljava/lang/ClassLoader;
Exception table:
from to target type
1 2 3 Class java.lang.ClassNotFoundException
1 9 10 Class java.lang.ClassNotFoundException
1 9 12 Class java.lang.InstantiationException
1 9 16 Class java.lang.IllegalAccessException
public static boolean isHeadless();
descriptor: ()Z
flags: (0x0009) ACC_PUBLIC, ACC_STATIC
Code:
stack=1, locals=0, args_size=0
0: invokestatic java.awt.GraphicsEnvironment.getHeadlessProperty:()Z
ireturn
LocalVariableTable:
Start End Slot Name Signature
static java.lang.String getHeadlessMessage();
descriptor: ()Ljava/lang/String;
flags: (0x0008) ACC_STATIC
Code:
stack=2, locals=0, args_size=0
0: getstatic java.awt.GraphicsEnvironment.headless:Ljava/lang/Boolean;
ifnonnull 2
1: invokestatic java.awt.GraphicsEnvironment.getHeadlessProperty:()Z
pop
2: StackMap locals:
StackMap stack:
getstatic java.awt.GraphicsEnvironment.defaultHeadless:Ljava/lang/Boolean;
getstatic java.lang.Boolean.TRUE:Ljava/lang/Boolean;
if_acmpeq 3
aconst_null
goto 4
3: StackMap locals:
StackMap stack:
ldc "\nNo X11 DISPLAY variable was set, but this program performed an operation which requires it."
4: StackMap locals:
StackMap stack: java.lang.String
areturn
LocalVariableTable:
Start End Slot Name Signature
private static boolean getHeadlessProperty();
descriptor: ()Z
flags: (0x000a) ACC_PRIVATE, ACC_STATIC
Code:
stack=1, locals=0, args_size=0
0: getstatic java.awt.GraphicsEnvironment.headless:Ljava/lang/Boolean;
ifnonnull 2
1: invokedynamic run()Ljava/security/PrivilegedAction;
Bootstrap: invokestatic java.lang.invoke.LambdaMetafactory.metafactory:(Ljava/lang/invoke/MethodHandles$Lookup;Ljava/lang/String;Ljava/lang/invoke/MethodType;Ljava/lang/invoke/MethodType;Ljava/lang/invoke/MethodHandle;Ljava/lang/invoke/MethodType;)Ljava/lang/invoke/CallSite;
Method arguments:
()Ljava/lang/Object;
java/awt/GraphicsEnvironment.lambda$0()Ljava/lang/Void; (6)
()Ljava/lang/Void;
invokestatic java.security.AccessController.doPrivileged:(Ljava/security/PrivilegedAction;)Ljava/lang/Object;
pop
2: StackMap locals:
StackMap stack:
getstatic java.awt.GraphicsEnvironment.headless:Ljava/lang/Boolean;
invokevirtual java.lang.Boolean.booleanValue:()Z
ireturn
LocalVariableTable:
Start End Slot Name Signature
static void checkHeadless();
descriptor: ()V
flags: (0x0008) ACC_STATIC
Code:
stack=2, locals=0, args_size=0
0: invokestatic java.awt.GraphicsEnvironment.isHeadless:()Z
ifeq 2
1: new java.awt.HeadlessException
dup
invokespecial java.awt.HeadlessException.<init>:()V
athrow
2: StackMap locals:
StackMap stack:
return
LocalVariableTable:
Start End Slot Name Signature
Exceptions:
throws java.awt.HeadlessException
public boolean isHeadlessInstance();
descriptor: ()Z
flags: (0x0001) ACC_PUBLIC
Code:
stack=1, locals=1, args_size=1
start local 0 0: invokestatic java.awt.GraphicsEnvironment.getHeadlessProperty:()Z
ireturn
end local 0 LocalVariableTable:
Start End Slot Name Signature
0 1 0 this Ljava/awt/GraphicsEnvironment;
public abstract java.awt.GraphicsDevice[] getScreenDevices();
descriptor: ()[Ljava/awt/GraphicsDevice;
flags: (0x0401) ACC_PUBLIC, ACC_ABSTRACT
Exceptions:
throws java.awt.HeadlessException
public abstract java.awt.GraphicsDevice getDefaultScreenDevice();
descriptor: ()Ljava/awt/GraphicsDevice;
flags: (0x0401) ACC_PUBLIC, ACC_ABSTRACT
Exceptions:
throws java.awt.HeadlessException
public abstract java.awt.Graphics2D createGraphics(java.awt.image.BufferedImage);
descriptor: (Ljava/awt/image/BufferedImage;)Ljava/awt/Graphics2D;
flags: (0x0401) ACC_PUBLIC, ACC_ABSTRACT
MethodParameters:
Name Flags
img
public abstract java.awt.Font[] getAllFonts();
descriptor: ()[Ljava/awt/Font;
flags: (0x0401) ACC_PUBLIC, ACC_ABSTRACT
public abstract java.lang.String[] getAvailableFontFamilyNames();
descriptor: ()[Ljava/lang/String;
flags: (0x0401) ACC_PUBLIC, ACC_ABSTRACT
public abstract java.lang.String[] getAvailableFontFamilyNames(java.util.Locale);
descriptor: (Ljava/util/Locale;)[Ljava/lang/String;
flags: (0x0401) ACC_PUBLIC, ACC_ABSTRACT
MethodParameters:
Name Flags
l
public boolean registerFont(java.awt.Font);
descriptor: (Ljava/awt/Font;)Z
flags: (0x0001) ACC_PUBLIC
Code:
stack=3, locals=3, args_size=2
start local 0 start local 1 0: aload 1
ifnonnull 2
1: new java.lang.NullPointerException
dup
ldc "font cannot be null."
invokespecial java.lang.NullPointerException.<init>:(Ljava/lang/String;)V
athrow
2: StackMap locals:
StackMap stack:
invokestatic sun.font.FontManagerFactory.getInstance:()Lsun/font/FontManager;
astore 2
start local 2 3: aload 2
aload 1
invokeinterface sun.font.FontManager.registerFont:(Ljava/awt/Font;)Z
ireturn
end local 2 end local 1 end local 0 LocalVariableTable:
Start End Slot Name Signature
0 4 0 this Ljava/awt/GraphicsEnvironment;
0 4 1 font Ljava/awt/Font;
3 4 2 fm Lsun/font/FontManager;
MethodParameters:
Name Flags
font
public void preferLocaleFonts();
descriptor: ()V
flags: (0x0001) ACC_PUBLIC
Code:
stack=1, locals=2, args_size=1
start local 0 0: invokestatic sun.font.FontManagerFactory.getInstance:()Lsun/font/FontManager;
astore 1
start local 1 1: aload 1
invokeinterface sun.font.FontManager.preferLocaleFonts:()V
2: return
end local 1 end local 0 LocalVariableTable:
Start End Slot Name Signature
0 3 0 this Ljava/awt/GraphicsEnvironment;
1 3 1 fm Lsun/font/FontManager;
public void preferProportionalFonts();
descriptor: ()V
flags: (0x0001) ACC_PUBLIC
Code:
stack=1, locals=2, args_size=1
start local 0 0: invokestatic sun.font.FontManagerFactory.getInstance:()Lsun/font/FontManager;
astore 1
start local 1 1: aload 1
invokeinterface sun.font.FontManager.preferProportionalFonts:()V
2: return
end local 1 end local 0 LocalVariableTable:
Start End Slot Name Signature
0 3 0 this Ljava/awt/GraphicsEnvironment;
1 3 1 fm Lsun/font/FontManager;
public java.awt.Point getCenterPoint();
descriptor: ()Ljava/awt/Point;
flags: (0x0001) ACC_PUBLIC
Code:
stack=5, locals=2, args_size=1
start local 0 0: aload 0
invokevirtual java.awt.GraphicsEnvironment.getDefaultScreenDevice:()Ljava/awt/GraphicsDevice;
invokestatic sun.java2d.SunGraphicsEnvironment.getUsableBounds:(Ljava/awt/GraphicsDevice;)Ljava/awt/Rectangle;
1: astore 1
start local 1 2: new java.awt.Point
dup
aload 1
getfield java.awt.Rectangle.width:I
iconst_2
idiv
aload 1
getfield java.awt.Rectangle.x:I
iadd
3: aload 1
getfield java.awt.Rectangle.height:I
iconst_2
idiv
aload 1
getfield java.awt.Rectangle.y:I
iadd
4: invokespecial java.awt.Point.<init>:(II)V
areturn
end local 1 end local 0 LocalVariableTable:
Start End Slot Name Signature
0 5 0 this Ljava/awt/GraphicsEnvironment;
2 5 1 usableBounds Ljava/awt/Rectangle;
Exceptions:
throws java.awt.HeadlessException
public java.awt.Rectangle getMaximumWindowBounds();
descriptor: ()Ljava/awt/Rectangle;
flags: (0x0001) ACC_PUBLIC
Code:
stack=1, locals=1, args_size=1
start local 0 0: aload 0
invokevirtual java.awt.GraphicsEnvironment.getDefaultScreenDevice:()Ljava/awt/GraphicsDevice;
invokestatic sun.java2d.SunGraphicsEnvironment.getUsableBounds:(Ljava/awt/GraphicsDevice;)Ljava/awt/Rectangle;
areturn
end local 0 LocalVariableTable:
Start End Slot Name Signature
0 1 0 this Ljava/awt/GraphicsEnvironment;
Exceptions:
throws java.awt.HeadlessException
private static java.lang.Void lambda$0();
descriptor: ()Ljava/lang/Void;
flags: (0x100a) ACC_PRIVATE, ACC_STATIC, ACC_SYNTHETIC
Code:
stack=2, locals=3, args_size=0
0: ldc "java.awt.headless"
invokestatic java.lang.System.getProperty:(Ljava/lang/String;)Ljava/lang/String;
astore 0
start local 0 1: aload 0
ifnonnull 25
2: ldc "javaplugin.version"
invokestatic java.lang.System.getProperty:(Ljava/lang/String;)Ljava/lang/String;
ifnull 5
3: getstatic java.lang.Boolean.FALSE:Ljava/lang/Boolean;
dup
putstatic java.awt.GraphicsEnvironment.defaultHeadless:Ljava/lang/Boolean;
putstatic java.awt.GraphicsEnvironment.headless:Ljava/lang/Boolean;
4: goto 26
5: StackMap locals: java.lang.String
StackMap stack:
ldc "os.name"
invokestatic java.lang.System.getProperty:(Ljava/lang/String;)Ljava/lang/String;
astore 1
start local 1 6: aload 1
ldc "OS X"
invokevirtual java.lang.String.contains:(Ljava/lang/CharSequence;)Z
ifeq 12
ldc "sun.awt.HToolkit"
7: ldc "awt.toolkit"
invokestatic java.lang.System.getProperty:(Ljava/lang/String;)Ljava/lang/String;
8: invokevirtual java.lang.String.equals:(Ljava/lang/Object;)Z
9: ifeq 12
10: getstatic java.lang.Boolean.TRUE:Ljava/lang/Boolean;
dup
putstatic java.awt.GraphicsEnvironment.defaultHeadless:Ljava/lang/Boolean;
putstatic java.awt.GraphicsEnvironment.headless:Ljava/lang/Boolean;
11: goto 26
12: StackMap locals: java.lang.String
StackMap stack:
ldc "DISPLAY"
invokestatic java.lang.System.getenv:(Ljava/lang/String;)Ljava/lang/String;
astore 2
start local 2 13: ldc "Linux"
aload 1
invokevirtual java.lang.String.equals:(Ljava/lang/Object;)Z
ifne 19
14: ldc "SunOS"
aload 1
invokevirtual java.lang.String.equals:(Ljava/lang/Object;)Z
ifne 19
15: ldc "FreeBSD"
aload 1
invokevirtual java.lang.String.equals:(Ljava/lang/Object;)Z
ifne 19
16: ldc "NetBSD"
aload 1
invokevirtual java.lang.String.equals:(Ljava/lang/Object;)Z
ifne 19
17: ldc "OpenBSD"
aload 1
invokevirtual java.lang.String.equals:(Ljava/lang/Object;)Z
ifne 19
18: ldc "AIX"
aload 1
invokevirtual java.lang.String.equals:(Ljava/lang/Object;)Z
ifeq 21
19: StackMap locals: java.lang.String
StackMap stack:
aload 2
ifnull 20
aload 2
invokevirtual java.lang.String.trim:()Ljava/lang/String;
invokevirtual java.lang.String.isEmpty:()Z
ifeq 21
StackMap locals:
StackMap stack:
20: iconst_1
goto 22
StackMap locals:
StackMap stack:
21: iconst_0
StackMap locals:
StackMap stack: int
22: invokestatic java.lang.Boolean.valueOf:(Z)Ljava/lang/Boolean;
23: dup
putstatic java.awt.GraphicsEnvironment.defaultHeadless:Ljava/lang/Boolean;
putstatic java.awt.GraphicsEnvironment.headless:Ljava/lang/Boolean;
end local 2 end local 1 24: goto 26
25: StackMap locals:
StackMap stack:
aload 0
invokestatic java.lang.Boolean.valueOf:(Ljava/lang/String;)Ljava/lang/Boolean;
putstatic java.awt.GraphicsEnvironment.headless:Ljava/lang/Boolean;
26: StackMap locals:
StackMap stack:
aconst_null
areturn
end local 0 LocalVariableTable:
Start End Slot Name Signature
1 27 0 nm Ljava/lang/String;
6 24 1 osName Ljava/lang/String;
13 24 2 display Ljava/lang/String;
}
SourceFile: "GraphicsEnvironment.java"
InnerClasses:
public final Lookup = java.lang.invoke.MethodHandles$Lookup of java.lang.invoke.MethodHandles