diff --git a/src/main/scala/com/github/shadowsocks/acl/Acl.scala b/src/main/scala/com/github/shadowsocks/acl/Acl.scala
index 6868f449..d943ba65 100644
--- a/src/main/scala/com/github/shadowsocks/acl/Acl.scala
+++ b/src/main/scala/com/github/shadowsocks/acl/Acl.scala
@@ -80,7 +80,7 @@ class Acl {
       }
       case _ =>
     }
-    this.subnets ++= (if (bypass) bypassSubnets else proxySubnets)
+    this.subnets ++= (if (bypass) proxySubnets else bypassSubnets)
     this
   }
   final def fromId(id: String): Acl = fromSource(Source.fromFile(Acl.getPath(id)))
@@ -90,8 +90,8 @@ class Acl {
     result.append(if (bypass) "[bypass_all]\n" else "[proxy_all]\n")
     var bypassList = bypassHostnames.toStream
     var proxyList = proxyHostnames.toStream
-    if (bypass) bypassList = subnets.toStream.map(_.toString) #::: bypassList
-    else proxyList = subnets.toStream.map(_.toString) #::: proxyList
+    if (bypass) proxyList = subnets.toStream.map(_.toString) #::: bypassList
+    else bypassList = subnets.toStream.map(_.toString) #::: proxyList
     if (bypassList.nonEmpty) {
       result.append("[bypass_list]\n")
       result.append(bypassList.mkString("\n"))
diff --git a/src/main/scala/com/github/shadowsocks/acl/CustomRulesFragment.scala b/src/main/scala/com/github/shadowsocks/acl/CustomRulesFragment.scala
index b66ba4af..4ab8e10e 100644
--- a/src/main/scala/com/github/shadowsocks/acl/CustomRulesFragment.scala
+++ b/src/main/scala/com/github/shadowsocks/acl/CustomRulesFragment.scala
@@ -95,8 +95,13 @@ class CustomRulesFragment extends ToolbarFragment with Toolbar.OnMenuItemClickLi
         }): DialogInterface.OnClickListener)
         .setPositiveButton(android.R.string.ok, ((_, _) =>
           adapter.addFromTemplate(templateSelector.getSelectedItemPosition, editText.getText) match {
-            case -1 => adapter.remove(item)
-            case index => list.post(() => list.scrollToPosition(index))
+            case -1 =>
+            case index =>
+              val item = this.item
+              list.post(() => {
+                list.scrollToPosition(index)
+                adapter.remove(item)
+              })
           })
           : DialogInterface.OnClickListener)
         .create().show()
@@ -203,13 +208,15 @@ class CustomRulesFragment extends ToolbarFragment with Toolbar.OnMenuItemClickLi
 
     def getSectionTitle(i: Int): String = {
       val j = i - acl.subnets.size
-      (if (j < 0) acl.subnets(i).address.toString.charAt(0).toString else {
+      try (if (j < 0) acl.subnets(i).address.getHostAddress.substring(0, 1) else {
         val hostname = acl.proxyHostnames(i)
         PATTERN_DOMAIN.findFirstMatchIn(hostname) match {
           case Some(m) => m.matched.replaceAll("\\\\.", ".")  // don't convert IDN yet
           case None => hostname
         }
-      }).substring(0, 1)
+      }).substring(0, 1) catch {
+        case _: IndexOutOfBoundsException => " "
+      }
     }
   }
 
diff --git a/src/main/scala/com/github/shadowsocks/acl/Subnet.scala b/src/main/scala/com/github/shadowsocks/acl/Subnet.scala
index 41e7aed3..b41465c0 100644
--- a/src/main/scala/com/github/shadowsocks/acl/Subnet.scala
+++ b/src/main/scala/com/github/shadowsocks/acl/Subnet.scala
@@ -18,7 +18,7 @@ class Subnet(val address: InetAddress, val prefixSize: Int) extends Comparable[S
   override def toString: String = if (address match {
     case _: Inet4Address => prefixSize == 32
     case _: Inet6Address => prefixSize == 128
-  }) address.toString else address.toString + '/' + prefixSize
+  }) address.getHostAddress else address.getHostAddress + '/' + prefixSize
 
   override def compareTo(that: Subnet): Int = {
     val addrThis = address.getAddress
diff --git a/src/main/scala/scala/collection/mutable/SortedList.scala b/src/main/scala/scala/collection/mutable/SortedList.scala
index a55eefe3..9fa9d144 100644
--- a/src/main/scala/scala/collection/mutable/SortedList.scala
+++ b/src/main/scala/scala/collection/mutable/SortedList.scala
@@ -39,7 +39,10 @@ class SortedList[A] private(treeRef: ObjectRef[RB.Tree[A, Null]], from: Option[A
   }
 
   // AbstractSeq
-  def apply(i: Int): A = RB.nth(treeRef.elem, i).key // Should i out of range result in NullReferenceException?
+  def apply(i: Int): A = try RB.nth(treeRef.elem, i).key catch {
+    // out of bounds will result in accessing null nodes
+    case e: NullPointerException => throw new IndexOutOfBoundsException().initCause(e)
+  }
   def length: Int = size
 
   // Buffer