https://www.graalvm.org/ 
public class com.oracle.svm.hosted.option.HostedOptionCustomizer implements com.oracle.svm.hosted.option.HostedOptionProvider
  minor version: 0
  major version: 59
  flags: flags: (0x0021) ACC_PUBLIC, ACC_SUPER
  this_class: com.oracle.svm.hosted.option.HostedOptionCustomizer
  super_class: java.lang.Object
{
  private org.graalvm.collections.EconomicMap<org.graalvm.compiler.options.OptionKey<?>, java.lang.Object> hostedValues;
    descriptor: Lorg/graalvm/collections/EconomicMap;
    flags: (0x0002) ACC_PRIVATE
    Signature: Lorg/graalvm/collections/EconomicMap<Lorg/graalvm/compiler/options/OptionKey<*>;Ljava/lang/Object;>;

  private org.graalvm.collections.EconomicMap<org.graalvm.compiler.options.OptionKey<?>, java.lang.Object> runtimeValues;
    descriptor: Lorg/graalvm/collections/EconomicMap;
    flags: (0x0002) ACC_PRIVATE
    Signature: Lorg/graalvm/collections/EconomicMap<Lorg/graalvm/compiler/options/OptionKey<*>;Ljava/lang/Object;>;

  public void <init>(com.oracle.svm.hosted.option.HostedOptionProvider);
    descriptor: (Lcom/oracle/svm/hosted/option/HostedOptionProvider;)V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=2, locals=2, args_size=2
        start local 0 // com.oracle.svm.hosted.option.HostedOptionCustomizer this
        start local 1 // com.oracle.svm.hosted.option.HostedOptionProvider original
         0: .line 36
            aload 0 /* this */
            invokespecial java.lang.Object.<init>:()V
         1: .line 37
            aload 0 /* this */
            invokestatic org.graalvm.compiler.options.OptionValues.newOptionMap:()Lorg/graalvm/collections/EconomicMap;
            putfield com.oracle.svm.hosted.option.HostedOptionCustomizer.hostedValues:Lorg/graalvm/collections/EconomicMap;
         2: .line 38
            aload 0 /* this */
            getfield com.oracle.svm.hosted.option.HostedOptionCustomizer.hostedValues:Lorg/graalvm/collections/EconomicMap;
            aload 1 /* original */
            invokeinterface com.oracle.svm.hosted.option.HostedOptionProvider.getHostedValues:()Lorg/graalvm/collections/EconomicMap;
            invokeinterface org.graalvm.collections.EconomicMap.putAll:(Lorg/graalvm/collections/EconomicMap;)V
         3: .line 40
            aload 0 /* this */
            invokestatic org.graalvm.compiler.options.OptionValues.newOptionMap:()Lorg/graalvm/collections/EconomicMap;
            putfield com.oracle.svm.hosted.option.HostedOptionCustomizer.runtimeValues:Lorg/graalvm/collections/EconomicMap;
         4: .line 41
            aload 0 /* this */
            getfield com.oracle.svm.hosted.option.HostedOptionCustomizer.runtimeValues:Lorg/graalvm/collections/EconomicMap;
            aload 1 /* original */
            invokeinterface com.oracle.svm.hosted.option.HostedOptionProvider.getRuntimeValues:()Lorg/graalvm/collections/EconomicMap;
            invokeinterface org.graalvm.collections.EconomicMap.putAll:(Lorg/graalvm/collections/EconomicMap;)V
         5: .line 42
            return
        end local 1 // com.oracle.svm.hosted.option.HostedOptionProvider original
        end local 0 // com.oracle.svm.hosted.option.HostedOptionCustomizer this
      LocalVariableTable:
        Start  End  Slot      Name  Signature
            0    6     0      this  Lcom/oracle/svm/hosted/option/HostedOptionCustomizer;
            0    6     1  original  Lcom/oracle/svm/hosted/option/HostedOptionProvider;
    MethodParameters:
          Name  Flags
      original  

  public org.graalvm.collections.EconomicMap<org.graalvm.compiler.options.OptionKey<?>, java.lang.Object> getHostedValues();
    descriptor: ()Lorg/graalvm/collections/EconomicMap;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // com.oracle.svm.hosted.option.HostedOptionCustomizer this
         0: .line 46
            aload 0 /* this */
            getfield com.oracle.svm.hosted.option.HostedOptionCustomizer.hostedValues:Lorg/graalvm/collections/EconomicMap;
            areturn
        end local 0 // com.oracle.svm.hosted.option.HostedOptionCustomizer this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lcom/oracle/svm/hosted/option/HostedOptionCustomizer;
    Signature: ()Lorg/graalvm/collections/EconomicMap<Lorg/graalvm/compiler/options/OptionKey<*>;Ljava/lang/Object;>;

  public org.graalvm.collections.EconomicMap<org.graalvm.compiler.options.OptionKey<?>, java.lang.Object> getRuntimeValues();
    descriptor: ()Lorg/graalvm/collections/EconomicMap;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // com.oracle.svm.hosted.option.HostedOptionCustomizer this
         0: .line 51
            aload 0 /* this */
            getfield com.oracle.svm.hosted.option.HostedOptionCustomizer.runtimeValues:Lorg/graalvm/collections/EconomicMap;
            areturn
        end local 0 // com.oracle.svm.hosted.option.HostedOptionCustomizer this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lcom/oracle/svm/hosted/option/HostedOptionCustomizer;
    Signature: ()Lorg/graalvm/collections/EconomicMap<Lorg/graalvm/compiler/options/OptionKey<*>;Ljava/lang/Object;>;
}
SourceFile: "HostedOptionCustomizer.java"