java - Log4j 最大字符串长度或 Java 字符串连接错误？

Question

在 Solaris 10 上运行时，当我使用 Apache Log4j 记录器命中 LOG.debug 语句时遇到问题。以下代码块演示了基本场景:

public class MyClass {
   private static final Logger LOG = Logger.getLogger(MyClass.class.getName());
   private LinkedHashMap<String, String> myMap = 
         new LinkedHashMap<String, String>();

   public static void main(String[] args) {

      // A really long String, but certainly not exceeding 2^31 - 1 characters 
      //long
      String reallyLongString = "A really, really, really...long String";
      String key = "keyToReallyLongString";

      // When this line is executed, Solaris instantly and completely logs me off 
      // of the system
      LOG.debug("Adding to myMap[" + key + "]: " + reallyLongString);
   }
}

有什么想法吗？

Answer 1

如果您有任何类型的进程限制，您可能会遇到它们。通过进行字符串连接，您将至少使用 (reallyLongString.length() + key.length()) * 2 字节。如果这足以让你突破极限……