http://www.eclipse.org/platform: Eclipse Preferences Mechanism (Eclipse Foundation) 
public abstract class org.eclipse.core.runtime.preferences.AbstractPreferenceInitializer
  minor version: 0
  major version: 59
  flags: flags: (0x0421) ACC_PUBLIC, ACC_SUPER, ACC_ABSTRACT
  this_class: org.eclipse.core.runtime.preferences.AbstractPreferenceInitializer
  super_class: java.lang.Object
{
  public void <init>();
    descriptor: ()V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // org.eclipse.core.runtime.preferences.AbstractPreferenceInitializer this
         0: .line 31
            aload 0 /* this */
            invokespecial java.lang.Object.<init>:()V
         1: .line 32
            return
        end local 0 // org.eclipse.core.runtime.preferences.AbstractPreferenceInitializer this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    2     0  this  Lorg/eclipse/core/runtime/preferences/AbstractPreferenceInitializer;

  public abstract void initializeDefaultPreferences();
    descriptor: ()V
    flags: (0x0401) ACC_PUBLIC, ACC_ABSTRACT
}
SourceFile: "AbstractPreferenceInitializer.java"