docs: public JavaCompiler createCompiler(final String pHint) {
          
          final String className;
          if (pHint.indexOf('.') < 0) {
              className = "org.drools.compiler.commons.jci.compilers." + ClassUtils.toJavaCasing(pHint) + "JavaCompiler";
          } else {
              className = pHint;
          }
          
          Class clazz = (Class) classCache.get(className);
          
          if (clazz == null) {
              try {
                  clazz = Class.forName(className);
                  classCache.put(className, clazz);
              } catch (ClassNotFoundException e) {
                  clazz = null;
              }
          }
  
          if (clazz == null) {
              return null;
          }
          
          try {
              return (JavaCompiler) clazz.newInstance();
          } catch (Throwable t) {
              return null;
          }
      }