https://freemarker.apache.org/: FreeMarker is a "template engine"; a generic tool to generate text output based on templates. (Apache Software Foundation) 
public abstract class freemarker.ext.jsp.TaglibFactory$MetaInfTldSource
  minor version: 0
  major version: 59
  flags: flags: (0x0421) ACC_PUBLIC, ACC_SUPER, ACC_ABSTRACT
  this_class: freemarker.ext.jsp.TaglibFactory$MetaInfTldSource
  super_class: java.lang.Object
{
  private void <init>();
    descriptor: ()V
    flags: (0x0002) ACC_PRIVATE
    Code:
      stack=3, locals=1, args_size=1
        start local 0 // freemarker.ext.jsp.TaglibFactory$MetaInfTldSource this
         0: .line 57
            new java.lang.Error
            dup
            ldc "Unresolved compilation problems: \n\tThe import javax.servlet cannot be resolved\n\tThe import javax.servlet cannot be resolved\n\tThe import javax.servlet cannot be resolved\n\tServletContext cannot be resolved to a type\n\tServletContext cannot be resolved to a type\n\tServletContext cannot be resolved to a type\n\tServletContext cannot be resolved to a type\n\tServletContext cannot be resolved to a type\n\tServletContext cannot be resolved to a type\n\tServletContext cannot be resolved to a type\n\tServletContext cannot be resolved to a type\n\tServletContext cannot be resolved to a type\n\tHttpServletRequest cannot be resolved to a type\n\tThe method getRequest() from the type HttpRequestHashModel refers to the missing type HttpServletRequest\n\tServletContext cannot be resolved to a type\n\tServletContext cannot be resolved to a type\n\tServletContext cannot be resolved to a type\n\tServletContext cannot be resolved to a type\n\tServletContext cannot be resolved to a type\n\tServletContext cannot be resolved to a type\n\tServletContext cannot be resolved to a type\n\tServletContext cannot be resolved to a type\n\tTag cannot be resolved to a type\n"
            invokespecial java.lang.Error.<init>:(Ljava/lang/String;)V
            athrow
        end local 0 // freemarker.ext.jsp.TaglibFactory$MetaInfTldSource this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lfreemarker/ext/jsp/TaglibFactory$MetaInfTldSource;
}
SourceFile: "TaglibFactory.java"
NestHost: freemarker.ext.jsp.TaglibFactory
InnerClasses:
  public abstract MetaInfTldSource = freemarker.ext.jsp.TaglibFactory$MetaInfTldSource of freemarker.ext.jsp.TaglibFactory