Started working on Folia support

Co-authored-by: darbyjack <admin@glaremasters.me>

.github/label-commenter-config.yml

@@ -36,9 +36,9 @@ labels:
           Your issue unfortunately lacks certain information that we require in order to help you with your issue.
           Please make sure you provide the following information:
           
-          - Currently used Versions of your server and PlaceholderAPI
+          - Currently used Versions of your server (`/version`) and PlaceholderAPI (`/version PlaceholderAPI`)
-          - Currently installed Expansions
+          - Currently installed Expansions (`/papi list`)
-          - Currently installed Plugins
+          - Currently installed Plugins (`/pl`)
           - Any additional information requested by users in this issue.
           
           The easiest way to provide those information is through the `/papi dump` command which posts the required information to https://paste.helpch.at and gives a URL to share.
@@ -52,18 +52,18 @@ labels:
       issue:
         body: |-
           Your issue has beeen marked as invalid.
-          This means that it either doesn't follow any provided template, or isn't related to PlaceholderAPI in any way.
+          This means that it either doesn't follow any provided template, or isn't related to PlaceholderAPI.
           
           Please make sure to use one of the issue templates and provide the requested information.
           Currently available Templates are:
           
-          - [Bug Report](https://github.com/PlaceholderAPI/PlaceholderAPI/issues/new?template=bug_report.md)
+          - [Bug Report](https://github.com/PlaceholderAPI/PlaceholderAPI/issues/new?labels=Type%3A+Issue+%28Unconfirmed%29&template=bug_report.yml)
-          - [Feature Request](https://github.com/PlaceholderAPI/PlaceholderAPI/issues/new?template=feature_request.md)
+          - [Feature Request](https://github.com/PlaceholderAPI/PlaceholderAPI/issues/new?labels=Type%3A+Enhancement&template=feature_request.yml)
           
           If you want changes to be made towards the Wiki, would we encourage you to [Make a Pull request](https://github.com/PlaceholderAPI/PlaceholderAPI/pulls).  
-          You can find more information about this process on the [Wiki's Readme](https://github.com/PlaceholderAPI/PlaceholderAPI/blob/master/wiki/README.md).
+          You can find more information about this process on the [Wiki's Readme](https://github.com/PlaceholderAPI/PlaceholderAPI/blob/wiki/README.md).
           
-          It is recommended to [join our Discord Server](https://helpch.at/discord) as you often receive faster response compared to the issue tracker here.
+          It is recommended to [join our Discord Server](https://helpch.at/discord) as you often receive a faster response compared to the issue tracker here.
           Questions about PlaceholderAPI should be asked in our [Discussions](https://github.com/PlaceholderAPI/PlaceholderAPI/discussions).
         action: close
       pr:
@@ -74,7 +74,7 @@ labels:
           Here is a small summary of what you should know:
           
           - Pull requests for PlaceholderAPI should target the `master` branch.
-          - Pull requests for the Wiki should target the `docs/wiki` branch.
+          - Pull requests for the Wiki should target the `wiki` branch.
           
           Don't hesitate to ask us any questions.
         action: close

build.gradle

@@ -1,131 +0,0 @@
-import org.apache.tools.ant.filters.ReplaceTokens
-
-plugins {
-    id "java"
-    id "maven-publish"
-    id "org.cadixdev.licenser" version "0.6.1"
-    id "com.github.johnrengelman.shadow" version "7.1.0"
-}
-
-group "me.clip"
-version "2.11.2"
-
-description "An awesome placeholder provider!"
-
-repositories {
-    maven({ url = "https://oss.sonatype.org/content/repositories/snapshots/" })
-
-    mavenCentral()
-    mavenLocal()
-
-    maven({ url = "https://repo.codemc.org/repository/maven-public/" })
-    maven({ url = "https://hub.spigotmc.org/nexus/content/repositories/snapshots/" })
-}
-
-dependencies {
-    implementation "org.bstats:bstats-bukkit:3.0.0"
-    implementation "net.kyori:adventure-platform-bukkit:4.0.1"
-
-    compileOnly "org.spigotmc:spigot-api:1.19-R0.1-SNAPSHOT"
-    compileOnly "org.jetbrains:annotations:23.0.0"
-
-    testImplementation "org.openjdk.jmh:jmh-core:1.32"
-    testImplementation "org.openjdk.jmh:jmh-generator-annprocess:1.32"
-
-    testImplementation "org.junit.jupiter:junit-jupiter-engine:5.8.2"
-    testRuntimeOnly "org.junit.jupiter:junit-jupiter-engine:5.8.1"
-}
-
-processResources {
-    filter ReplaceTokens, tokens: [name: rootProject.name, version: project.version.toString(), description: project.description]
-}
-
-java {
-    sourceCompatibility = JavaVersion.VERSION_1_8
-    targetCompatibility = JavaVersion.VERSION_1_8
-
-    withJavadocJar()
-    withSourcesJar()
-}
-
-tasks.withType(JavaCompile) {
-    options.encoding = "UTF-8"
-}
-
-tasks.withType(Javadoc) {
-    failOnError false
-    options.addStringOption('Xdoclint:none', '-quiet')
-    options.addStringOption('encoding', 'UTF-8')
-    options.addStringOption('charSet', 'UTF-8')
-}
-
-shadowJar {
-    archiveClassifier.set("")
-
-    relocate "org.bstats", "me.clip.placeholderapi.metrics"
-    relocate "net.kyori", "me.clip.placeholderapi.libs.kyori"
-}
-
-license {
-    include '**/*.java'
-
-    matching('**/*.java') {
-        header = file('config/headers/main.txt')
-    }
-
-    ext {
-        year = 2021
-    }
-}
-
-test {
-    useJUnitPlatform()
-}
-
-configurations {
-    testImplementation {
-        extendsFrom(compileOnly)
-    }
-}
-
-publishing {
-    repositories {
-        maven {
-            if (version.contains("-DEV")) {
-                url = uri("https://repo.extendedclip.com/content/repositories/dev/")
-            } else {
-                url = uri("https://repo.extendedclip.com/content/repositories/placeholderapi/")
-            }
-
-            credentials {
-                username = System.getenv("JENKINS_USER")
-                password = System.getenv("JENKINS_PASS")
-            }
-        }
-    }
-
-    publications {
-        mavenJava(MavenPublication) {
-            artifactId = "placeholderapi"
-
-            from components.java
-
-            pom.withXml {
-
-                // some are having issues with bstats so we might need to add that to the pom as well
-
-                asNode().appendNode("packaging", "jar")
-                asNode().remove(asNode().get("dependencies"))
-
-                def dependenciesNode = asNode().appendNode("dependencies")
-                // jetbrains annotations
-                def jetbrainsAnnotations = dependenciesNode.appendNode("dependency")
-                jetbrainsAnnotations.appendNode("groupId", "org.jetbrains")
-                jetbrainsAnnotations.appendNode("artifactId", "annotations")
-                jetbrainsAnnotations.appendNode("version", "19.0.0")
-            }
-        }
-    }
-}
-
-publish.dependsOn clean, test, jar

build.gradle.kts

@@ -0,0 +1,128 @@
+import com.github.jengelman.gradle.plugins.shadow.tasks.ShadowJar
+
+plugins {
+    `java-library`
+    `maven-publish`
+    id("com.github.hierynomus.license") version "0.16.1"
+    id("com.github.johnrengelman.shadow") version "8.1.0"
+}
+
+group = "me.clip"
+version = "2.11.4-DEV-${System.getProperty("BUILD_NUMBER")}"
+
+description = "An awesome placeholder provider!"
+
+repositories {
+    maven("https://oss.sonatype.org/content/repositories/snapshots/")
+
+    mavenCentral()
+    mavenLocal()
+
+    maven("https://repo.codemc.org/repository/maven-public/")
+    maven("https://hub.spigotmc.org/nexus/content/repositories/snapshots/")
+}
+
+dependencies {
+    implementation("org.bstats:bstats-bukkit:3.0.1")
+    implementation("net.kyori:adventure-platform-bukkit:4.3.0")
+
+    compileOnlyApi("dev.folia:folia-api:1.19.4-R0.1-SNAPSHOT") // this is temp
+    compileOnlyApi("org.jetbrains:annotations:23.0.0")
+
+    testImplementation("org.openjdk.jmh:jmh-core:1.32")
+    testImplementation("org.openjdk.jmh:jmh-generator-annprocess:1.32")
+
+    testImplementation("org.junit.jupiter:junit-jupiter-engine:5.8.2")
+    testRuntimeOnly("org.junit.jupiter:junit-jupiter-engine:5.8.1")
+}
+
+
+java {
+    sourceCompatibility = JavaVersion.VERSION_17 // this is temp
+    targetCompatibility = JavaVersion.VERSION_17 // this is temp
+
+    withJavadocJar()
+    withSourcesJar()
+}
+
+license {
+    header = rootProject.file("config/headers/main.txt")
+
+    include("**/*.java")
+    mapping("java", "JAVADOC_STYLE")
+
+    encoding = "UTF-8"
+
+    ext {
+        set("year", 2021)
+    }
+}
+
+val javaComponent: SoftwareComponent = components["java"]
+
+tasks {
+    processResources {
+        eachFile { expand("version" to project.version) }
+    }
+
+    build {
+        dependsOn(named("shadowJar"))
+    }
+
+    withType<JavaCompile> {
+        options.encoding = "UTF-8"
+    }
+
+    withType<Javadoc> {
+        isFailOnError = false
+
+        with(options as StandardJavadocDocletOptions) {
+            addStringOption("Xdoclint:none", "-quiet")
+            addStringOption("encoding", "UTF-8")
+            addStringOption("charSet", "UTF-8")
+        }
+    }
+
+    withType<ShadowJar> {
+        archiveClassifier.set("")
+
+        relocate("org.bstats", "me.clip.placeholderapi.metrics")
+        relocate("net.kyori", "me.clip.placeholderapi.libs.kyori")
+    }
+
+    test {
+        useJUnitPlatform()
+    }
+
+    publishing {
+        publications {
+            create<MavenPublication>("maven") {
+                artifactId = "placeholderapi"
+                from(javaComponent)
+            }
+        }
+
+        repositories {
+            maven {
+                if ("-DEV" in version.toString()) {
+                    url = uri("https://repo.extendedclip.com/content/repositories/dev/")
+                } else {
+                    url = uri("https://repo.extendedclip.com/content/repositories/placeholderapi/")
+                }
+
+                credentials {
+                    username = System.getenv("JENKINS_USER")
+                    password = System.getenv("JENKINS_PASS")
+                }
+            }
+        }
+    }
+
+    publish.get().setDependsOn(listOf(build.get()))
+}
+
+configurations {
+    testImplementation {
+        extendsFrom(compileOnly.get())
+    }
+}

gradle/wrapper/gradle-wrapper.properties

@@ -1,5 +1,5 @@
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-7.4.2-bin.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-8.0.2-bin.zip
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists

settings.gradle

@@ -1 +0,0 @@
-rootProject.name = 'PlaceholderAPI'

settings.gradle.kts

@@ -0,0 +1 @@
+rootProject.name = "PlaceholderAPI"

src/main/java/me/clip/placeholderapi/PlaceholderAPIPlugin.java

@@ -162,7 +162,7 @@ public final class PlaceholderAPIPlugin extends JavaPlugin {
 
     HandlerList.unregisterAll(this);
 
-    Bukkit.getScheduler().cancelTasks(this);
+    Bukkit.getAsyncScheduler().cancelTasks(this); // this is hopefully temp
 
     adventure.close();
     adventure = null;

src/main/java/me/clip/placeholderapi/commands/impl/cloud/CommandECloud.java

@@ -22,11 +22,6 @@ package me.clip.placeholderapi.commands.impl.cloud;
 
 import com.google.common.collect.ImmutableList;
 import com.google.common.collect.ImmutableMap;
-import java.util.Collection;
-import java.util.List;
-import java.util.Locale;
-import java.util.Map;
-import java.util.stream.Stream;
 import me.clip.placeholderapi.PlaceholderAPIPlugin;
 import me.clip.placeholderapi.commands.PlaceholderCommand;
 import me.clip.placeholderapi.util.Msg;
@@ -34,12 +29,17 @@ import org.bukkit.command.CommandSender;
 import org.jetbrains.annotations.NotNull;
 import org.jetbrains.annotations.Unmodifiable;
 
+import java.util.Collection;
+import java.util.List;
+import java.util.Locale;
+import java.util.Map;
+import java.util.stream.Stream;
+
 public final class CommandECloud extends PlaceholderCommand {
 
   @Unmodifiable
   private static final List<PlaceholderCommand> COMMANDS = ImmutableList
       .of(new CommandECloudClear(),
-          new CommandECloudToggle(),
           new CommandECloudStatus(),
           new CommandECloudUpdate(),
           new CommandECloudRefresh(),
@@ -79,8 +79,6 @@ public final class CommandECloud extends PlaceholderCommand {
       Msg.msg(sender,
           "&b&lPlaceholderAPI &8- &7eCloud Help Menu &8- ",
           " ",
-          "&b/papi &fenable/disable/toggle",
-          "  &7&oEnable or disable the eCloud",
           "&b/papi &fecloud status",
           "  &7&oView status of the eCloud",
           "&b/papi &fecloud list <all/{author}/installed> {page}",
@@ -115,10 +113,8 @@ public final class CommandECloud extends PlaceholderCommand {
       return;
     }
 
-    if (!(target instanceof CommandECloudToggle) && !plugin.getPlaceholderAPIConfig()
+    if (!plugin.getPlaceholderAPIConfig().isCloudEnabled()) {
-        .isCloudEnabled()) {
+      Msg.msg(sender, "&cThe eCloud Manager is not enabled! To enable it, set 'cloud_enabled' to true and reload the plugin.");
-      Msg.msg(sender,
-          "&cThe eCloud Manager is not enabled!");
       return;
     }
 

src/main/java/me/clip/placeholderapi/commands/impl/cloud/CommandECloudToggle.java

@@ -1,74 +0,0 @@
-/*
- * This file is part of PlaceholderAPI
- *
- * PlaceholderAPI
- * Copyright (c) 2015 - 2021 PlaceholderAPI Team
- *
- * PlaceholderAPI free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * PlaceholderAPI is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
- */
-
-package me.clip.placeholderapi.commands.impl.cloud;
-
-import java.util.List;
-import java.util.Locale;
-
-import me.clip.placeholderapi.PlaceholderAPIPlugin;
-import me.clip.placeholderapi.commands.PlaceholderCommand;
-import me.clip.placeholderapi.util.Msg;
-import org.bukkit.command.CommandSender;
-import org.jetbrains.annotations.NotNull;
-import org.jetbrains.annotations.Unmodifiable;
-
-public final class CommandECloudToggle extends PlaceholderCommand {
-
-  public CommandECloudToggle() {
-    super("toggle", "enable", "disable");
-  }
-
-  @Override
-  public void evaluate(@NotNull final PlaceholderAPIPlugin plugin,
-      @NotNull final CommandSender sender, @NotNull final String alias,
-      @NotNull @Unmodifiable final List<String> params) {
-    final boolean desiredState;
-    final boolean currentState = plugin.getPlaceholderAPIConfig().isCloudEnabled();
-
-    switch (alias.toLowerCase(Locale.ROOT)) {
-      case "enable":
-        desiredState = true;
-        break;
-      case "disable":
-        desiredState = false;
-        break;
-      default:
-        desiredState = !currentState;
-        break;
-    }
-
-    if (desiredState == currentState) {
-      Msg.msg(sender, "&7The eCloud Manager is already " + (desiredState ? "enabled" : "disabled"));
-      return;
-    }
-
-    plugin.getPlaceholderAPIConfig().setCloudEnabled(desiredState);
-
-    if (desiredState) {
-      plugin.getCloudExpansionManager().load();
-    } else {
-      plugin.getCloudExpansionManager().kill();
-    }
-
-    Msg.msg(sender, "&aThe eCloud Manager has been " + (desiredState ? "enabled" : "disabled"));
-  }
-
-}

src/main/java/me/clip/placeholderapi/commands/impl/local/CommandParse.java

@@ -30,7 +30,6 @@ import me.clip.placeholderapi.PlaceholderAPIPlugin;
 import me.clip.placeholderapi.commands.PlaceholderCommand;
 import me.clip.placeholderapi.expansion.PlaceholderExpansion;
 import me.clip.placeholderapi.util.Msg;
-import net.md_5.bungee.api.chat.TextComponent;
 import org.bukkit.Bukkit;
 import org.bukkit.OfflinePlayer;
 import org.bukkit.command.CommandSender;
@@ -123,13 +122,9 @@ public final class CommandParse extends PlaceholderCommand {
     }
 
     if (broadcast) {
-      Msg.broadcast(message);
+      Bukkit.broadcastMessage(message);
     } else {
-      if (!(sender instanceof Player)) {
+      sender.sendMessage(message);
-        Msg.msg(sender, message);
-      } else {
-        ((Player) sender).spigot().sendMessage(TextComponent.fromLegacyText(message));
-      }
     }
   }
 
@@ -156,7 +151,8 @@ public final class CommandParse extends PlaceholderCommand {
     final String message = PlaceholderAPI
         .setRelationalPlaceholders(((Player) targetOne), ((Player) targetTwo),
             String.join(" ", params.subList(2, params.size())));
-    Msg.msg(sender, message);
+    
+    sender.sendMessage(message);
   }
 
 

src/main/java/me/clip/placeholderapi/expansion/NMSVersion.java

@@ -44,7 +44,9 @@ public enum NMSVersion {
   SPIGOT_1_16_R3("v1_16_R3"),
   SPIGOT_1_17_R1("v1_17_R1"),
   SPIGOT_1_18_R1("v1_18_R1"),
-  SPIGOT_1_19("v1_19_R1");
+  SPIGOT_1_19_R1("v1_19_R1"),
+  SPIGOT_1_19_R2("v1_19_R2"),
+  SPIGOT_1_19_R3("v1_19_R3");
 
   private final String version;
 

src/main/java/me/clip/placeholderapi/expansion/manager/CloudExpansionManager.java

@@ -53,6 +53,7 @@ import java.util.stream.Collectors;
 import me.clip.placeholderapi.PlaceholderAPIPlugin;
 import me.clip.placeholderapi.expansion.PlaceholderExpansion;
 import me.clip.placeholderapi.expansion.cloud.CloudExpansion;
+import me.clip.placeholderapi.util.Msg;
 import org.jetbrains.annotations.NotNull;
 import org.jetbrains.annotations.Unmodifiable;
 
@@ -202,13 +203,7 @@ public final class CloudExpansionManager {
             plugin.getLogger().log(Level.WARNING, "Failed to download expansion information", e);
           }
 
-          // loop thru what's left on the main thread
+          //todo: Figure out why this was being scheduled back on the main thread
-          plugin
-              .getServer()
-              .getScheduler()
-              .runTask(
-                  plugin,
-                  () -> {
           try {
             for (Map.Entry<String, CloudExpansion> entry : values.entrySet()) {
               String name = entry.getKey();
@@ -236,7 +231,6 @@ public final class CloudExpansionManager {
                     .log(Level.WARNING, "Failed to download expansion information", e);
           }
         });
-        });
   }
 
   public boolean isDownloading(@NotNull final CloudExpansion expansion) {
@@ -268,8 +262,7 @@ public final class CloudExpansionManager {
       await.remove(toIndexName(expansion));
 
       if (exception != null) {
-        plugin.getLogger().log(Level.SEVERE,
+        Msg.severe("Failed to download %s:%s", exception, expansion.getName(), expansion.getVersion());
-            "failed to download " + expansion.getName() + ":" + version.getVersion(), exception);
       }
     }, ASYNC_EXECUTOR);
 

src/main/java/me/clip/placeholderapi/expansion/manager/LocalExpansionManager.java

@@ -217,6 +217,12 @@ public final class LocalExpansionManager implements Listener {
       return false;
     }
     
+    if (expansions.containsKey(identifier)) {
+      Msg.warn("Failed to load expansion %s. Identifier is already in use.",
+          expansion.getIdentifier());
+      return false;
+    }
+
     if (expansion instanceof Configurable) {
       Map<String, Object> defaults = ((Configurable) expansion).getDefaults();
       String pre = "expansions." + identifier + ".";
@@ -263,12 +269,13 @@ public final class LocalExpansionManager implements Listener {
       return false;
     }
 
-    final ExpansionRegisterEvent event = new ExpansionRegisterEvent(expansion);
+// this is temp
-    Bukkit.getPluginManager().callEvent(event);
+//    final ExpansionRegisterEvent event = new ExpansionRegisterEvent(expansion);
-
+//    Bukkit.getPluginManager().callEvent(event);
-    if (event.isCancelled()) {
+//
-      return false;
+//    if (event.isCancelled()) {
-    }
+//      return false;
+//    }
 
     expansionsLock.lock();
     try {
@@ -420,12 +427,11 @@ public final class LocalExpansionManager implements Listener {
         }
 
         return expansionClass;
-      } catch (final VerifyError ex) {
+      } catch (VerifyError | NoClassDefFoundError e) {
-        Msg.severe("Failed to load expansion class %s (is a dependency missing?", file.getName() + ')');
+        Msg.severe("Failed to load expansion %s (is a dependency missing?)", e, file.getName());
-        Msg.severe("Cause: %s %s", ex.getClass().getSimpleName(), ex.getMessage());
         return null;
-      } catch (final Exception ex) {
+      } catch (Exception e) {
-        throw new CompletionException(ex);
+        throw new CompletionException(e.getMessage() + " (expansion file: " + file.getAbsolutePath() + ")", e);
       }
     });
   }

src/main/java/me/clip/placeholderapi/updatechecker/UpdateChecker.java

@@ -24,6 +24,7 @@ import java.io.BufferedReader;
 import java.io.InputStreamReader;
 import java.net.URL;
 import java.util.Arrays;
+import java.util.concurrent.CompletableFuture;
 import javax.net.ssl.HttpsURLConnection;
 import me.clip.placeholderapi.PlaceholderAPIPlugin;
 import me.clip.placeholderapi.util.Msg;
@@ -54,8 +55,10 @@ public class UpdateChecker implements Listener {
     return spigotVersion;
   }
 
+  //todo: Figure out a better approach for this?
   public void fetch() {
-    Bukkit.getScheduler().runTaskAsynchronously(plugin, () -> {
+    CompletableFuture<Boolean> update = new CompletableFuture<>();
+    CompletableFuture.supplyAsync(() -> {
       try {
         HttpsURLConnection con = (HttpsURLConnection) new URL(
                 "https://api.spigotmc.org/legacy/update.php?resource=" + RESOURCE_ID).openConnection();
@@ -63,26 +66,32 @@ public class UpdateChecker implements Listener {
         spigotVersion = new BufferedReader(new InputStreamReader(con.getInputStream())).readLine();
       } catch (Exception ex) {
         plugin.getLogger().info("Failed to check for updates on spigot.");
-        return;
+        return false;
       }
 
       if (spigotVersion == null || spigotVersion.isEmpty()) {
-        return;
+        plugin.getLogger().info("Failed to check for updates on spigot.");
+        return false;
       }
 
       updateAvailable = spigotIsNewer();
 
       if (!updateAvailable) {
-        return;
+        plugin.getLogger().info("PlaceholderAPI is up to date.");
+        return false;
       }
 
-      Bukkit.getScheduler().runTask(plugin, () -> {
+      return true;
+    });
+
+    update.whenComplete((result, error) -> {
+      if (result) {
         plugin.getLogger()
                 .info("An update for PlaceholderAPI (v" + getSpigotVersion() + ") is available at:");
         plugin.getLogger()
                 .info("https://www.spigotmc.org/resources/placeholderapi." + RESOURCE_ID + "/");
-        Bukkit.getPluginManager().registerEvents(this, plugin);
+        Bukkit.getPluginManager().registerEvents(UpdateChecker.this, plugin);
-      });
+      }
     });
   }
 

src/main/java/me/clip/placeholderapi/util/Futures.java

@@ -40,11 +40,7 @@ public final class Futures {
       @NotNull final CompletableFuture<T> future,
       @NotNull final BiConsumer<T, Throwable> consumer) {
     future.whenComplete((value, exception) -> {
-      if (Bukkit.isPrimaryThread()) {
       consumer.accept(value, exception);
-      } else {
-        Bukkit.getScheduler().runTask(plugin, () -> consumer.accept(value, exception));
-      }
     });
   }
 

src/main/resources/plugin.yml

@@ -1,11 +1,13 @@
-name: "@name@"
+name: PlaceholderAPI
 main: "me.clip.placeholderapi.PlaceholderAPIPlugin"
 
-version: "@version@"
+version: ${version}
 author: HelpChat
 
+folia-supported: true
+
 api-version: "1.13"
-description: "@description@"
+description: "An awesome placeholder provider!"
 
 commands:
   placeholderapi: