https://www.graalvm.org/ 
class com.oracle.svm.core.posix.PosixNativeLibrarySupport$PosixNativeLibrary implements com.oracle.svm.core.jdk.PlatformNativeLibrarySupport$NativeLibrary
  minor version: 0
  major version: 59
  flags: flags: (0x0020) ACC_SUPER
  this_class: com.oracle.svm.core.posix.PosixNativeLibrarySupport$PosixNativeLibrary
  super_class: java.lang.Object
{
  private final java.lang.String canonicalIdentifier;
    descriptor: Ljava/lang/String;
    flags: (0x0012) ACC_PRIVATE, ACC_FINAL

  private final boolean builtin;
    descriptor: Z
    flags: (0x0012) ACC_PRIVATE, ACC_FINAL

  private org.graalvm.word.PointerBase dlhandle;
    descriptor: Lorg/graalvm/word/PointerBase;
    flags: (0x0002) ACC_PRIVATE

  private boolean loaded;
    descriptor: Z
    flags: (0x0002) ACC_PRIVATE

  final com.oracle.svm.core.posix.PosixNativeLibrarySupport this$0;
    descriptor: Lcom/oracle/svm/core/posix/PosixNativeLibrarySupport;
    flags: (0x1010) ACC_FINAL, ACC_SYNTHETIC

  static final boolean $assertionsDisabled;
    descriptor: Z
    flags: (0x1018) ACC_STATIC, ACC_FINAL, ACC_SYNTHETIC

  static void <clinit>();
    descriptor: ()V
    flags: (0x0008) ACC_STATIC
    Code:
      stack=1, locals=0, args_size=0
         0: .line 149
            ldc Lcom/oracle/svm/core/posix/PosixNativeLibrarySupport;
            invokevirtual java.lang.Class.desiredAssertionStatus:()Z
            ifne 1
            iconst_1
            goto 2
      StackMap locals:
      StackMap stack:
         1: iconst_0
      StackMap locals:
      StackMap stack: int
         2: putstatic com.oracle.svm.core.posix.PosixNativeLibrarySupport$PosixNativeLibrary.$assertionsDisabled:Z
            return
      LocalVariableTable:
        Start  End  Slot  Name  Signature

  void <init>(com.oracle.svm.core.posix.PosixNativeLibrarySupport, java.lang.String, boolean);
    descriptor: (Lcom/oracle/svm/core/posix/PosixNativeLibrarySupport;Ljava/lang/String;Z)V
    flags: (0x0000) 
    Code:
      stack=2, locals=4, args_size=4
        start local 0 // com.oracle.svm.core.posix.PosixNativeLibrarySupport$PosixNativeLibrary this
        start local 2 // java.lang.String canonicalIdentifier
        start local 3 // boolean builtin
         0: .line 156
            aload 0 /* this */
            aload 1
            putfield com.oracle.svm.core.posix.PosixNativeLibrarySupport$PosixNativeLibrary.this$0:Lcom/oracle/svm/core/posix/PosixNativeLibrarySupport;
            aload 0 /* this */
            invokespecial java.lang.Object.<init>:()V
         1: .line 153
            aload 0 /* this */
            invokestatic org.graalvm.word.WordFactory.nullPointer:()Lorg/graalvm/word/PointerBase;
            putfield com.oracle.svm.core.posix.PosixNativeLibrarySupport$PosixNativeLibrary.dlhandle:Lorg/graalvm/word/PointerBase;
         2: .line 154
            aload 0 /* this */
            iconst_0
            putfield com.oracle.svm.core.posix.PosixNativeLibrarySupport$PosixNativeLibrary.loaded:Z
         3: .line 157
            aload 0 /* this */
            aload 2 /* canonicalIdentifier */
            putfield com.oracle.svm.core.posix.PosixNativeLibrarySupport$PosixNativeLibrary.canonicalIdentifier:Ljava/lang/String;
         4: .line 158
            aload 0 /* this */
            iload 3 /* builtin */
            putfield com.oracle.svm.core.posix.PosixNativeLibrarySupport$PosixNativeLibrary.builtin:Z
         5: .line 159
            return
        end local 3 // boolean builtin
        end local 2 // java.lang.String canonicalIdentifier
        end local 0 // com.oracle.svm.core.posix.PosixNativeLibrarySupport$PosixNativeLibrary this
      LocalVariableTable:
        Start  End  Slot                 Name  Signature
            0    6     0                 this  Lcom/oracle/svm/core/posix/PosixNativeLibrarySupport$PosixNativeLibrary;
            0    6     2  canonicalIdentifier  Ljava/lang/String;
            0    6     3              builtin  Z
    MethodParameters:
                     Name  Flags
      this$0               final
      canonicalIdentifier  
      builtin              

  public java.lang.String getCanonicalIdentifier();
    descriptor: ()Ljava/lang/String;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // com.oracle.svm.core.posix.PosixNativeLibrarySupport$PosixNativeLibrary this
         0: .line 163
            aload 0 /* this */
            getfield com.oracle.svm.core.posix.PosixNativeLibrarySupport$PosixNativeLibrary.canonicalIdentifier:Ljava/lang/String;
            areturn
        end local 0 // com.oracle.svm.core.posix.PosixNativeLibrarySupport$PosixNativeLibrary this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lcom/oracle/svm/core/posix/PosixNativeLibrarySupport$PosixNativeLibrary;

  public boolean isBuiltin();
    descriptor: ()Z
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // com.oracle.svm.core.posix.PosixNativeLibrarySupport$PosixNativeLibrary this
         0: .line 168
            aload 0 /* this */
            getfield com.oracle.svm.core.posix.PosixNativeLibrarySupport$PosixNativeLibrary.builtin:Z
            ireturn
        end local 0 // com.oracle.svm.core.posix.PosixNativeLibrarySupport$PosixNativeLibrary this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lcom/oracle/svm/core/posix/PosixNativeLibrarySupport$PosixNativeLibrary;

  public boolean load();
    descriptor: ()Z
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=2, locals=1, args_size=1
        start local 0 // com.oracle.svm.core.posix.PosixNativeLibrarySupport$PosixNativeLibrary this
         0: .line 173
            getstatic com.oracle.svm.core.posix.PosixNativeLibrarySupport$PosixNativeLibrary.$assertionsDisabled:Z
            ifne 1
            aload 0 /* this */
            getfield com.oracle.svm.core.posix.PosixNativeLibrarySupport$PosixNativeLibrary.loaded:Z
            ifeq 1
            new java.lang.AssertionError
            dup
            invokespecial java.lang.AssertionError.<init>:()V
            athrow
         1: .line 174
      StackMap locals:
      StackMap stack:
            aload 0 /* this */
            aload 0 /* this */
            invokevirtual com.oracle.svm.core.posix.PosixNativeLibrarySupport$PosixNativeLibrary.doLoad:()Z
            putfield com.oracle.svm.core.posix.PosixNativeLibrarySupport$PosixNativeLibrary.loaded:Z
         2: .line 175
            aload 0 /* this */
            getfield com.oracle.svm.core.posix.PosixNativeLibrarySupport$PosixNativeLibrary.loaded:Z
            ireturn
        end local 0 // com.oracle.svm.core.posix.PosixNativeLibrarySupport$PosixNativeLibrary this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    3     0  this  Lcom/oracle/svm/core/posix/PosixNativeLibrarySupport$PosixNativeLibrary;

  private boolean doLoad();
    descriptor: ()Z
    flags: (0x0002) ACC_PRIVATE
    Code:
      stack=3, locals=1, args_size=1
        start local 0 // com.oracle.svm.core.posix.PosixNativeLibrarySupport$PosixNativeLibrary this
         0: .line 181
            ldc Lorg/graalvm/nativeimage/Platform$LINUX;
            invokestatic org.graalvm.nativeimage.Platform.includedIn:(Ljava/lang/Class;)Z
            ifne 2
         1: .line 182
            ldc Lorg/graalvm/nativeimage/Platform$DARWIN;
            invokestatic org.graalvm.nativeimage.Platform.includedIn:(Ljava/lang/Class;)Z
            ifeq 3
         2: .line 183
      StackMap locals:
      StackMap stack:
            invokestatic com.oracle.svm.core.jdk.Jvm.initialize:()V
         3: .line 186
      StackMap locals:
      StackMap stack:
            aload 0 /* this */
            getfield com.oracle.svm.core.posix.PosixNativeLibrarySupport$PosixNativeLibrary.builtin:Z
            ifeq 5
         4: .line 187
            iconst_1
            ireturn
         5: .line 189
      StackMap locals:
      StackMap stack:
            getstatic com.oracle.svm.core.posix.PosixNativeLibrarySupport$PosixNativeLibrary.$assertionsDisabled:Z
            ifne 6
            aload 0 /* this */
            getfield com.oracle.svm.core.posix.PosixNativeLibrarySupport$PosixNativeLibrary.dlhandle:Lorg/graalvm/word/PointerBase;
            invokeinterface org.graalvm.word.PointerBase.isNull:()Z
            ifne 6
            new java.lang.AssertionError
            dup
            invokespecial java.lang.AssertionError.<init>:()V
            athrow
         6: .line 190
      StackMap locals:
      StackMap stack:
            aload 0 /* this */
            aload 0 /* this */
            getfield com.oracle.svm.core.posix.PosixNativeLibrarySupport$PosixNativeLibrary.canonicalIdentifier:Ljava/lang/String;
            invokestatic com.oracle.svm.core.posix.headers.Dlfcn.RTLD_LAZY:()I
            invokestatic com.oracle.svm.core.posix.PosixUtils.dlopen:(Ljava/lang/String;I)Lorg/graalvm/word/PointerBase;
            putfield com.oracle.svm.core.posix.PosixNativeLibrarySupport$PosixNativeLibrary.dlhandle:Lorg/graalvm/word/PointerBase;
         7: .line 191
            aload 0 /* this */
            getfield com.oracle.svm.core.posix.PosixNativeLibrarySupport$PosixNativeLibrary.dlhandle:Lorg/graalvm/word/PointerBase;
            invokeinterface org.graalvm.word.PointerBase.isNonNull:()Z
            ireturn
        end local 0 // com.oracle.svm.core.posix.PosixNativeLibrarySupport$PosixNativeLibrary this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    8     0  this  Lcom/oracle/svm/core/posix/PosixNativeLibrarySupport$PosixNativeLibrary;

  public boolean isLoaded();
    descriptor: ()Z
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // com.oracle.svm.core.posix.PosixNativeLibrarySupport$PosixNativeLibrary this
         0: .line 196
            aload 0 /* this */
            getfield com.oracle.svm.core.posix.PosixNativeLibrarySupport$PosixNativeLibrary.loaded:Z
            ireturn
        end local 0 // com.oracle.svm.core.posix.PosixNativeLibrarySupport$PosixNativeLibrary this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lcom/oracle/svm/core/posix/PosixNativeLibrarySupport$PosixNativeLibrary;

  public org.graalvm.word.PointerBase findSymbol(java.lang.String);
    descriptor: (Ljava/lang/String;)Lorg/graalvm/word/PointerBase;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=2, locals=2, args_size=2
        start local 0 // com.oracle.svm.core.posix.PosixNativeLibrarySupport$PosixNativeLibrary this
        start local 1 // java.lang.String name
         0: .line 201
            aload 0 /* this */
            getfield com.oracle.svm.core.posix.PosixNativeLibrarySupport$PosixNativeLibrary.builtin:Z
            ifeq 2
         1: .line 202
            aload 0 /* this */
            getfield com.oracle.svm.core.posix.PosixNativeLibrarySupport$PosixNativeLibrary.this$0:Lcom/oracle/svm/core/posix/PosixNativeLibrarySupport;
            aload 1 /* name */
            invokevirtual com.oracle.svm.core.posix.PosixNativeLibrarySupport.findBuiltinSymbol:(Ljava/lang/String;)Lorg/graalvm/word/PointerBase;
            areturn
         2: .line 204
      StackMap locals:
      StackMap stack:
            getstatic com.oracle.svm.core.posix.PosixNativeLibrarySupport$PosixNativeLibrary.$assertionsDisabled:Z
            ifne 3
            aload 0 /* this */
            getfield com.oracle.svm.core.posix.PosixNativeLibrarySupport$PosixNativeLibrary.dlhandle:Lorg/graalvm/word/PointerBase;
            invokeinterface org.graalvm.word.PointerBase.isNonNull:()Z
            ifne 3
            new java.lang.AssertionError
            dup
            invokespecial java.lang.AssertionError.<init>:()V
            athrow
         3: .line 205
      StackMap locals:
      StackMap stack:
            aload 0 /* this */
            getfield com.oracle.svm.core.posix.PosixNativeLibrarySupport$PosixNativeLibrary.dlhandle:Lorg/graalvm/word/PointerBase;
            aload 1 /* name */
            invokestatic com.oracle.svm.core.posix.PosixUtils.dlsym:(Lorg/graalvm/word/PointerBase;Ljava/lang/String;)Lorg/graalvm/word/PointerBase;
            areturn
        end local 1 // java.lang.String name
        end local 0 // com.oracle.svm.core.posix.PosixNativeLibrarySupport$PosixNativeLibrary this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    4     0  this  Lcom/oracle/svm/core/posix/PosixNativeLibrarySupport$PosixNativeLibrary;
            0    4     1  name  Ljava/lang/String;
    MethodParameters:
      Name  Flags
      name  
}
SourceFile: "PosixNativeLibraryFeature.java"
NestHost: com.oracle.svm.core.posix.PosixNativeLibrarySupport
InnerClasses:
  public abstract NativeLibrary = com.oracle.svm.core.jdk.PlatformNativeLibrarySupport$NativeLibrary of com.oracle.svm.core.jdk.PlatformNativeLibrarySupport
  PosixNativeLibrary = com.oracle.svm.core.posix.PosixNativeLibrarySupport$PosixNativeLibrary of com.oracle.svm.core.posix.PosixNativeLibrarySupport
  public abstract DARWIN = org.graalvm.nativeimage.Platform$DARWIN of org.graalvm.nativeimage.Platform
  public abstract LINUX = org.graalvm.nativeimage.Platform$LINUX of org.graalvm.nativeimage.Platform