code: @Deprecated
    public TraceMethod entry(String methodSignature) {
      synchronized (this.syncObject) {
        out().printIndentln("ENTRY--" + methodSignature + "--" + Thread.currentThread().getName() + "[" + Thread.currentThread().getId() + "]");
      }
  
      TraceMethod traceMethod = null;
      try {
        traceMethod = new TraceMethod(methodSignature);
        if (!this.threadMap.push(traceMethod))
          traceMethod = null;
      }
      catch (AbstractThreadMap.RuntimeException ex) {
        logMessage(LogLevel.SEVERE, "Stacksize is exceeded. Tracing is off.", this.getClass(), "entry()");
      }
  
      return traceMethod;
    }
docs: Indicates an entering of a method.
  
  @deprecated use {@link #entry(String returnType, Class clazz, String methodSignature)} or
  {@link #entry(String returnType, Object object, String methodSignature)}
  
  @param methodSignature the signature of the method as string representation
  @return the TraceMethod which has been put onto the stack - a mere data object for internal use primarily. May be null.