https://github.com/google/guava/guava: Guava is a suite of core and expanded libraries that include utility classes, google's collections, io classes, and much much more. 
abstract class com.google.common.base.CommonPattern
  minor version: 0
  major version: 59
  flags: flags: (0x0420) ACC_SUPER, ACC_ABSTRACT
  this_class: com.google.common.base.CommonPattern
  super_class: java.lang.Object
{
  void <init>();
    descriptor: ()V
    flags: (0x0000) 
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // com.google.common.base.CommonPattern this
         0: .line 25
            aload 0 /* this */
            invokespecial java.lang.Object.<init>:()V
            return
        end local 0 // com.google.common.base.CommonPattern this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lcom/google/common/base/CommonPattern;

  abstract com.google.common.base.CommonMatcher matcher(java.lang.CharSequence);
    descriptor: (Ljava/lang/CharSequence;)Lcom/google/common/base/CommonMatcher;
    flags: (0x0400) ACC_ABSTRACT
    MethodParameters:
      Name  Flags
      t     

  abstract java.lang.String pattern();
    descriptor: ()Ljava/lang/String;
    flags: (0x0400) ACC_ABSTRACT

  abstract int flags();
    descriptor: ()I
    flags: (0x0400) ACC_ABSTRACT

  public abstract java.lang.String toString();
    descriptor: ()Ljava/lang/String;
    flags: (0x0401) ACC_PUBLIC, ACC_ABSTRACT

  public abstract int hashCode();
    descriptor: ()I
    flags: (0x0401) ACC_PUBLIC, ACC_ABSTRACT

  public abstract boolean equals(java.lang.Object);
    descriptor: (Ljava/lang/Object;)Z
    flags: (0x0401) ACC_PUBLIC, ACC_ABSTRACT
    MethodParameters:
      Name  Flags
      o     
}
SourceFile: "CommonPattern.java"
    RuntimeInvisibleAnnotations: 
      com.google.common.annotations.GwtCompatible()