Basic edits, though seems to work in 1.15

build.gradle

@@ -40,7 +40,7 @@ repositories {
 
 // includeLibs just says to include the library in the final jar
 dependencies {
-    compile "org.bukkit:bukkit:1.14.1-R0.1-SNAPSHOT"
+    compile "org.bukkit:bukkit:1.15.1-R0.1-SNAPSHOT"
     compile "io.netty:netty-all:4.0.4.Final"
 }
 
@@ -57,7 +57,7 @@ task copyPlugin {
                     include "*.jar"
                 }
             }
-            catch(UnableToDeleteFileException e) {
+            catch(RuntimeException e) {
                 println e.getLocalizedMessage()
             }
             from file("$buildDir/libs/Advanced-Portals-${version}.jar")
@@ -71,7 +71,7 @@ task copyPlugin {
 task runJar() {
     doLast {
         if(System.env.MC_SERVER_LOC == null || System.env.MC_SERVER_JAR == null) {
-            throw new GradleException('You must set the server location and jar to use')
+            throw new GradleException('You must set the server location and jar to use MC_SERVER_LOC and MC_SERVER_JAR')
         }
         javaexec {
             main "-jar"
@@ -80,4 +80,4 @@ task runJar() {
             workingDir "${System.env.MC_SERVER_LOC}"
         }
     }
-}
+}

out/production/resources/config.yml

@@ -0,0 +1,90 @@
+# Advanced Portals Config
+
+# To set this file back to its default state just delete it and reload the server or restart it!
+
+
+
+# Set to true if you want the normal axes to work normally but the ones gived with /portals selector or wand will still work though
+# It can be usefull if people with permission want to use an iron axe on a survival server
+UseOnlyServerMadeAxe: false
+
+# Preferably an item and not a block but it shouldnt matter
+AxeItemId: IRON_AXE
+
+# Will be implemented so you can give yourself the portal block and build manually with it so its easier to make portals with the portal block.
+CanBuildPortalBlock: true
+
+# Defines if portals protect themselves
+PortalProtection: true
+
+# How many blocks around the portals will be protected from griefing or destruction
+PortalProtectionRadius: 5
+
+# What the default trigger block is for portals if nothing is defined.
+DefaultPortalTriggerBlock: PORTAL
+
+# This stops all water flowing inside a portal area(can be disabled if something like world edit is handelling the water flow or you dont want it active)
+#    you want to 
+StopWaterFlow: true
+
+# This must be a placeable block or it will not work and may even crash
+ShowSelectionBlockID: RED_STAINED_GLASS
+
+# WarpEffect
+# 0 = disabled(no particles)
+# 1 = Eye of ender explode effect(loads of portal particles)
+# adding more soon and may create some custom ones
+WarpParticles: 1
+
+# WarpSound generally suggested to keep the same as warpeffect but can usually be used for just the sound and no particle effects
+# 0 = disabled(no sound)
+# 1 = Enderman Warp Sound
+# adding more soon
+WarpSound: 1
+
+# In case you want to show the bungee attempting warp message
+ShowBungeeWarpMessage: false
+
+# This changes how long the show seletion lasts in seconds
+
+ShowSelectionShowDuration: 10
+
+# Where to display the message 0 = disabled(replaces PortalWarpMessages), 1 = in chat and 2 = action bar(1.8 and above only, anything lower will print the message that would
+#  generally on the action bar in the chat without a prefix or extra chat formatting)
+WarpMessageDisplay: 2
+
+# Use plugin name in the warp messages
+UseWarpPrefix: true
+
+# If this is true a custom prefix can be used, (not fully coded yet!!)
+
+UseCustomPrefix: false
+
+CustomPrefix: '&a[&eAdvancedPortals&a]'
+
+CustomPrefixFail: '&c[&7AdvancedPortals&c]'
+
+BlockSpectatorMode: false
+
+PortalCooldown: 5 # How long after trying to enter a portal until the player can try to enter another. 0 or lower to deactivate.
+ThrowbackAmount: 0.7 # How fast to throw them back, 0 or lower to disable throwback
+
+# Experimental, works but not all the time (Entities don't seem to be provided in the event sometimes or something is wrong)
+# We have no plans to further this but if anyone has any tips feel free to contact us here https://discord.gg/25QZVVn
+DisableGatewayBeam: false
+
+# Letters are flags. Include them to activate. n always disables everything, remove if you want it to work.
+# Lettering may not make too much sense but meh its useful. Examples are "ocpk" or "cop" (doesnt matter order)
+#
+# Remember enabling this means potentially admins could leave a portal lying around which could let them reop themselves.
+# If you think this may be an issue use a permission plugin and specifically give the users you trust permissions.
+#
+# n Disabled none, best just put this to really make sure the fact none are here is specified. It disables any others too
+# o Admin Heighten Enabled      Permission advancedportals.createportal.commandlevel.op
+# p Perm Heighten Enabled    Permission advancedportals.createportal.commandlevel.perms
+# c Console Heighten Enabled    Permission advancedportals.createportal.commandlevel.console
+# h Ops can create admin commands without special perms
+# e Ops can create all perm commands without special perms
+# k Ops can create console commands without special perms
+#
+CommandLevels: opchek

out/production/resources/destinations.yml

@@ -0,0 +1,7 @@
+
+#  ExampleDestination:
+#    world: it will be the world name
+#    pos:
+#      X:
+#      Y:
+#      Z:

out/production/resources/plugin.yml

@@ -0,0 +1,55 @@
+main: com.sekwah.advancedportals.AdvancedPortalsPlugin
+name: AdvancedPortals
+version: 0.2.1
+author: sekwah41
+description: An advanced portals plugin for bukkit.
+api-version: 1.13
+commands:
+    advancedportals:
+        description: The main command for the advanced portals
+        aliases: [portals, aportals, portal, ap]
+        usage: /<command>
+    destination:
+        description: Can be used to access portal destinations.
+        aliases: [desti]
+        usage: /<command>
+permissions:
+   advancedportals.*:
+     description: Gives access to all commands
+     default: op
+     children:
+       advancedportals.createportal: true
+       advancedportals.portal: true
+       advancedportals.build: true
+       advancedportals.desti: true
+   advancedportals.createportal:
+     description: Allows you to create portals
+     default: op
+   advancedportals.createportal.commandlevel.*:
+     description: Gives access to all level raisers
+     default: false
+     children:
+       advancedportals.createportal.commandlevel.op: true
+       advancedportals.createportal.commandlevel.perms: true
+       advancedportals.createportal.commandlevel.console: true
+   advancedportals.createportal.commandlevel.op:
+        description: Allows you to increase the users level temporaily to op
+        default: false
+   advancedportals.createportal.commandlevel.perms:
+        description: Allows you to increase the users level temporaily to have all perms
+        default: false
+   advancedportals.createportal.commandlevel.console:
+        description: Executes command in the console
+        default: false
+   advancedportals.portal:
+     description: Allows use of portal commands
+     default: op
+   advancedportals.build:
+     description: Allows you to build in the portal regions
+     default: op
+   advancedportals.desti:
+     description: Gives access to all desti commands
+     default: op
+   advancedportals.warp.*:
+     description: Access to all warps (not really used tbh)
+     default: op

out/production/resources/portals.yml

@@ -0,0 +1,19 @@
+
+#  ExamplePortal:
+#    world: it will be the world name
+#    triggerblock: LAVA # will only be used if the hastriggerblock is true and can be id or text
+#    pos1: # dont mess with the data here, if you do it may stop the portal from working.
+#      X:
+#      Y:
+#      Z:
+#    pos2:
+#      X:
+#      Y:
+#      Z:
+#    destination:
+#      issetpoint: true # if this was false point name would not be used and the coordinates would be saved here, it just adds more customisation.
+#      pointname: examplepoint # if issetpoint is false this wont be here and tppos will be.
+#      tppos:
+#        X:
+#        Y:
+#        Z:

src/main/java/com/sekwah/advancedportals/portals/Portal.java

@@ -388,7 +388,7 @@ public class Portal {
             int diff = (int) ((System.currentTimeMillis() - cooldown.get(player.getName())) / 1000);
             if (diff < cooldelay) {
                 int time = (cooldelay - diff);
-                player.sendMessage(ChatColor.RED + "Please wait " + ChatColor.YELLOW + time + ChatColor.RED + (time == 1 ? "second" : "seconds") + " until attempting to enter this portal again.");
+                player.sendMessage(ChatColor.RED + "Please wait " + ChatColor.YELLOW + time + ChatColor.RED + (time == 1 ? " second" : " seconds") + " until attempting to enter this portal again.");
                 failSound(player, portal);
                 throwPlayerBack(player);
                 return false;