Replace Reflections usage with an annotation processor

Reduces jar size by about 1.5-2mb

ap/pom.xml

@@ -0,0 +1,14 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+    <parent>
+        <groupId>org.geysermc</groupId>
+        <artifactId>geyser-parent</artifactId>
+        <version>1.4.1-SNAPSHOT</version>
+    </parent>
+
+    <artifactId>ap</artifactId>
+    <version>1.4.1-SNAPSHOT</version>
+</project>

ap/src/main/java/org/geysermc/processor/BlockEntityProcessor.java

@@ -0,0 +1,38 @@
+/*
+ * Copyright (c) 2019-2021 GeyserMC. http://geysermc.org
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ *
+ * @author GeyserMC
+ * @link https://github.com/GeyserMC/Geyser
+ */
+
+package org.geysermc.processor;
+
+import javax.annotation.processing.SupportedAnnotationTypes;
+import javax.annotation.processing.SupportedSourceVersion;
+import javax.lang.model.SourceVersion;
+
+@SupportedAnnotationTypes("org.geysermc.connector.network.translators.world.block.entity.BlockEntity")
+@SupportedSourceVersion(SourceVersion.RELEASE_8)
+public class BlockEntityProcessor extends ClassProcessor {
+    public BlockEntityProcessor() {
+        super("org.geysermc.connector.network.translators.world.block.entity.BlockEntity");
+    }
+}

ap/src/main/java/org/geysermc/processor/ClassProcessor.java

@@ -0,0 +1,151 @@
+/*
+ * Copyright (c) 2019-2021 GeyserMC. http://geysermc.org
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ *
+ * @author GeyserMC
+ * @link https://github.com/GeyserMC/Geyser
+ */
+
+package org.geysermc.processor;
+
+import javax.annotation.processing.AbstractProcessor;
+import javax.annotation.processing.ProcessingEnvironment;
+import javax.annotation.processing.RoundEnvironment;
+import javax.lang.model.element.AnnotationMirror;
+import javax.lang.model.element.Element;
+import javax.lang.model.element.ElementKind;
+import javax.lang.model.element.TypeElement;
+import javax.tools.Diagnostic;
+import javax.tools.FileObject;
+import javax.tools.StandardLocation;
+import java.io.BufferedWriter;
+import java.io.IOException;
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.nio.file.Paths;
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.List;
+import java.util.Set;
+
+public class ClassProcessor extends AbstractProcessor {
+    private final String annotationClassName;
+
+    private Path outputPath;
+
+    private final List<String> locations = new ArrayList<>();
+
+    public ClassProcessor(String annotationClassName) {
+        this.annotationClassName = annotationClassName;
+    }
+
+    @Override
+    public synchronized void init(ProcessingEnvironment processingEnv) {
+        super.init(processingEnv);
+
+        this.processingEnv.getMessager().printMessage(Diagnostic.Kind.NOTE, "Initializing processor " + this.annotationClassName);
+
+        String outputFile = processingEnv.getOptions().get("metadataOutputFile");
+        if (outputFile != null && !outputFile.isEmpty()) {
+            this.outputPath = Paths.get(outputFile);
+        }
+    }
+
+    @Override
+    public boolean process(Set<? extends TypeElement> annotations, RoundEnvironment roundEnv) {
+        if (roundEnv.processingOver()) {
+            if (!roundEnv.errorRaised()) {
+                complete();
+            }
+
+            return false;
+        }
+
+        if (!contains(annotations, this.annotationClassName)) {
+            return false;
+        }
+
+        for (Element element : roundEnv.getRootElements()) {
+            if (element.getKind() != ElementKind.CLASS) {
+                continue;
+            }
+
+            if (!contains(element.getAnnotationMirrors(), this.annotationClassName)) {
+                continue;
+            }
+
+            TypeElement typeElement = (TypeElement) element;
+            this.locations.add(typeElement.getQualifiedName().toString());
+        }
+        return true;
+    }
+
+    public boolean contains(Collection<? extends TypeElement> elements, String className) {
+        if (elements.isEmpty()) {
+            return false;
+        }
+
+        for (TypeElement element : elements) {
+            if (element.getQualifiedName().contentEquals(className)) {
+                return true;
+            }
+        }
+
+        return false;
+    }
+
+    public boolean contains(List<? extends AnnotationMirror> elements, String className) {
+        if (elements.isEmpty()) {
+            return false;
+        }
+
+        for (AnnotationMirror element : elements) {
+            if (element.getAnnotationType().toString().equals(className)) {
+                return true;
+            }
+        }
+
+        return false;
+    }
+
+    public void complete() {
+        try (BufferedWriter writer = this.createWriter()) {
+            for (String location : this.locations) {
+                writer.write(location);
+                writer.newLine();
+            }
+        } catch (IOException ex) {
+            ex.printStackTrace();
+        }
+
+        this.processingEnv.getMessager().printMessage(Diagnostic.Kind.NOTE, "Completed processing for " + this.annotationClassName);
+    }
+
+    private BufferedWriter createWriter() throws IOException {
+        if (this.outputPath != null) {
+            this.processingEnv.getMessager().printMessage(Diagnostic.Kind.NOTE, "Writing " + this.annotationClassName + " to " + this.outputPath);
+            return Files.newBufferedWriter(this.outputPath);
+        }
+
+        FileObject obj = this.processingEnv.getFiler().createResource(StandardLocation.CLASS_OUTPUT, "", this.annotationClassName);
+        this.processingEnv.getMessager().printMessage(Diagnostic.Kind.NOTE, "Writing " + this.annotationClassName + " to " + obj.toUri());
+        return new BufferedWriter(obj.openWriter());
+    }
+}

ap/src/main/java/org/geysermc/processor/CollisionRemapperProcessor.java

@@ -0,0 +1,38 @@
+/*
+ * Copyright (c) 2019-2021 GeyserMC. http://geysermc.org
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ *
+ * @author GeyserMC
+ * @link https://github.com/GeyserMC/Geyser
+ */
+
+package org.geysermc.processor;
+
+import javax.annotation.processing.SupportedAnnotationTypes;
+import javax.annotation.processing.SupportedSourceVersion;
+import javax.lang.model.SourceVersion;
+
+@SupportedAnnotationTypes("org.geysermc.connector.network.translators.collision.CollisionRemapper")
+@SupportedSourceVersion(SourceVersion.RELEASE_8)
+public class CollisionRemapperProcessor extends ClassProcessor {
+    public CollisionRemapperProcessor() {
+        super("org.geysermc.connector.network.translators.collision.CollisionRemapper");
+    }
+}

ap/src/main/java/org/geysermc/processor/ItemRemapperProcessor.java

@@ -0,0 +1,38 @@
+/*
+ * Copyright (c) 2019-2021 GeyserMC. http://geysermc.org
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ *
+ * @author GeyserMC
+ * @link https://github.com/GeyserMC/Geyser
+ */
+
+package org.geysermc.processor;
+
+import javax.annotation.processing.SupportedAnnotationTypes;
+import javax.annotation.processing.SupportedSourceVersion;
+import javax.lang.model.SourceVersion;
+
+@SupportedAnnotationTypes("org.geysermc.connector.network.translators.ItemRemapper")
+@SupportedSourceVersion(SourceVersion.RELEASE_8)
+public class ItemRemapperProcessor extends ClassProcessor {
+    public ItemRemapperProcessor() {
+        super("org.geysermc.connector.network.translators.ItemRemapper");
+    }
+}

ap/src/main/java/org/geysermc/processor/PacketTranslatorProcessor.java

@@ -0,0 +1,38 @@
+/*
+ * Copyright (c) 2019-2021 GeyserMC. http://geysermc.org
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ *
+ * @author GeyserMC
+ * @link https://github.com/GeyserMC/Geyser
+ */
+
+package org.geysermc.processor;
+
+import javax.annotation.processing.SupportedAnnotationTypes;
+import javax.annotation.processing.SupportedSourceVersion;
+import javax.lang.model.SourceVersion;
+
+@SupportedAnnotationTypes("org.geysermc.connector.network.translators.Translator")
+@SupportedSourceVersion(SourceVersion.RELEASE_8)
+public class PacketTranslatorProcessor extends ClassProcessor {
+    public PacketTranslatorProcessor() {
+        super("org.geysermc.connector.network.translators.Translator");
+    }
+}

ap/src/main/java/org/geysermc/processor/SoundHandlerProcessor.java

@@ -0,0 +1,38 @@
+/*
+ * Copyright (c) 2019-2021 GeyserMC. http://geysermc.org
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ *
+ * @author GeyserMC
+ * @link https://github.com/GeyserMC/Geyser
+ */
+
+package org.geysermc.processor;
+
+import javax.annotation.processing.SupportedAnnotationTypes;
+import javax.annotation.processing.SupportedSourceVersion;
+import javax.lang.model.SourceVersion;
+
+@SupportedAnnotationTypes("org.geysermc.connector.network.translators.sound.SoundHandler")
+@SupportedSourceVersion(SourceVersion.RELEASE_8)
+public class SoundHandlerProcessor extends ClassProcessor {
+    public SoundHandlerProcessor() {
+        super("org.geysermc.connector.network.translators.sound.SoundHandler");
+    }
+}

bootstrap/bungeecord/pom.xml

@@ -71,10 +71,6 @@
                                     <pattern>io.netty.channel.kqueue</pattern>
                                     <shadedPattern>org.geysermc.platform.bungeecord.shaded.io.netty.channel.kqueue</shadedPattern>
                                 </relocation>
-                                <relocation>
-                                    <pattern>org.reflections</pattern>
-                                    <shadedPattern>org.geysermc.platform.bungeecord.shaded.reflections</shadedPattern>
-                                </relocation>
                                 <relocation>
                                     <pattern>com.google.common</pattern>
                                     <shadedPattern>org.geysermc.platform.bungeecord.shaded.google.common</shadedPattern>
@@ -83,10 +79,6 @@
                                     <pattern>com.google.guava</pattern>
                                     <shadedPattern>org.geysermc.platform.bungeecord.shaded.google.guava</shadedPattern>
                                 </relocation>
-                                <relocation>
-                                    <pattern>org.dom4j</pattern>
-                                    <shadedPattern>org.geysermc.platform.bungeecord.shaded.dom4j</shadedPattern>
-                                </relocation>
                                 <relocation>
                                     <pattern>net.kyori</pattern>
                                     <shadedPattern>org.geysermc.platform.bungeecord.shaded.kyori</shadedPattern>

bootstrap/pom.xml

@@ -29,6 +29,16 @@
             <url>https://repo.velocitypowered.com/snapshots/</url>
         </repository>
     </repositories>
+
+    <dependencies>
+        <dependency>
+            <groupId>org.geysermc</groupId>
+            <artifactId>ap</artifactId>
+            <version>1.4.1-SNAPSHOT</version>
+            <scope>provided</scope>
+        </dependency>
+    </dependencies>
+
     <modules>
         <module>bungeecord</module>
         <module>spigot</module>

bootstrap/spigot/pom.xml

@@ -83,10 +83,6 @@
                                     <pattern>com.fasterxml.jackson</pattern>
                                     <shadedPattern>org.geysermc.platform.spigot.shaded.jackson</shadedPattern>
                                 </relocation>
-                                <relocation>
-                                    <pattern>org.reflections</pattern>
-                                    <shadedPattern>org.geysermc.platform.spigot.shaded.reflections</shadedPattern>
-                                </relocation>
                                 <relocation>
                                     <pattern>com.google.common</pattern>
                                     <shadedPattern>org.geysermc.platform.spigot.shaded.google.common</shadedPattern>
@@ -95,10 +91,6 @@
                                     <pattern>com.google.guava</pattern>
                                     <shadedPattern>org.geysermc.platform.spigot.shaded.google.guava</shadedPattern>
                                 </relocation>
-                                <relocation>
-                                    <pattern>org.dom4j</pattern>
-                                    <shadedPattern>org.geysermc.platform.spigot.shaded.dom4j</shadedPattern>
-                                </relocation>
                                 <relocation>
                                     <pattern>net.kyori</pattern>
                                     <shadedPattern>org.geysermc.platform.spigot.shaded.kyori</shadedPattern>

bootstrap/sponge/pom.xml

@@ -69,10 +69,6 @@
                                     <pattern>it.unimi.dsi.fastutil</pattern>
                                     <shadedPattern>org.geysermc.platform.sponge.shaded.fastutil</shadedPattern>
                                 </relocation>
-                                <relocation>
-                                    <pattern>org.reflections</pattern>
-                                    <shadedPattern>org.geysermc.platform.sponge.shaded.reflections</shadedPattern>
-                                </relocation>
                                 <relocation>
                                     <pattern>com.google.common</pattern>
                                     <shadedPattern>org.geysermc.platform.sponge.shaded.google.common</shadedPattern>
@@ -81,10 +77,6 @@
                                     <pattern>com.google.guava</pattern>
                                     <shadedPattern>org.geysermc.platform.sponge.shaded.google.guava</shadedPattern>
                                 </relocation>
-                                <relocation>
-                                    <pattern>org.dom4j</pattern>
-                                    <shadedPattern>org.geysermc.platform.sponge.shaded.dom4j</shadedPattern>
-                                </relocation>
                                 <relocation>
                                     <pattern>net.kyori</pattern>
                                     <shadedPattern>org.geysermc.platform.sponge.shaded.kyori</shadedPattern>

bootstrap/velocity/pom.xml

@@ -65,10 +65,6 @@
                                     <pattern>it.unimi.dsi.fastutil</pattern>
                                     <shadedPattern>org.geysermc.platform.velocity.shaded.fastutil</shadedPattern>
                                 </relocation>
-                                <relocation>
-                                    <pattern>org.reflections</pattern>
-                                    <shadedPattern>org.geysermc.platform.velocity.shaded.reflections</shadedPattern>
-                                </relocation>
                                 <relocation>
                                     <pattern>com.google.common</pattern>
                                     <shadedPattern>org.geysermc.platform.velocity.shaded.google.common</shadedPattern>
@@ -77,10 +73,6 @@
                                     <pattern>com.google.guava</pattern>
                                     <shadedPattern>org.geysermc.platform.velocity.shaded.google.guava</shadedPattern>
                                 </relocation>
-                                <relocation>
-                                    <pattern>org.dom4j</pattern>
-                                    <shadedPattern>org.geysermc.platform.velocity.shaded.dom4j</shadedPattern>
-                                </relocation>
                                 <relocation>
                                     <pattern>net.kyori.adventure.text.serializer.gson.legacyimpl</pattern>
                                     <shadedPattern>org.geysermc.platform.velocity.shaded.kyori.legacyimpl</shadedPattern>

connector/pom.xml

@@ -18,6 +18,12 @@
     </properties>
 
     <dependencies>
+        <dependency>
+            <groupId>org.geysermc</groupId>
+            <artifactId>ap</artifactId>
+            <version>1.4.1-SNAPSHOT</version>
+            <scope>provided</scope>
+        </dependency>
         <dependency>
             <groupId>org.geysermc</groupId>
             <artifactId>common</artifactId>
@@ -207,18 +213,6 @@
             <classifier>osx-x86_64</classifier>
         </dependency>
         <!-- End -->
-        <dependency>
-            <groupId>org.reflections</groupId>
-            <artifactId>reflections</artifactId>
-            <version>0.9.11</version> <!-- This isn't the latest version to get round https://github.com/ronmamo/reflections/issues/273 -->
-            <scope>compile</scope>
-        </dependency>
-        <dependency>
-            <groupId>org.dom4j</groupId>
-            <artifactId>dom4j</artifactId>
-            <version>2.1.3</version>
-            <scope>compile</scope>
-        </dependency>
         <!-- Adventure text serialization -->
         <dependency>
             <groupId>net.kyori</groupId>
@@ -342,54 +336,6 @@
                     </execution>
                 </executions>
             </plugin>
-            <plugin>
-                <groupId>org.codehaus.gmavenplus</groupId>
-                <artifactId>gmavenplus-plugin</artifactId>
-                <version>1.9.1</version>
-                <executions>
-                    <execution>
-                        <phase>process-classes</phase>
-                        <goals>
-                            <goal>execute</goal>
-                        </goals>
-                        <configuration>
-                            <scripts>
-                                <script><![CDATA[
-                                    new org.reflections.Reflections("org.geysermc.connector.network.translators")
-                                        .save("${project.artifactId}/target/classes/META-INF/reflections/org.geysermc.connector.network.translators-reflections.xml")
-                                    new org.reflections.Reflections("org.geysermc.connector.network.translators.collision.translators")
-                                        .save("${project.artifactId}/target/classes/META-INF/reflections/org.geysermc.connector.network.translators.collision.translators-reflections.xml")
-                                    new org.reflections.Reflections("org.geysermc.connector.network.translators.item")
-                                        .save("${project.artifactId}/target/classes/META-INF/reflections/org.geysermc.connector.network.translators.item-reflections.xml")
-                                    new org.reflections.Reflections("org.geysermc.connector.network.translators.sound")
-                                        .save("${project.artifactId}/target/classes/META-INF/reflections/org.geysermc.connector.network.translators.sound-reflections.xml")
-                                    new org.reflections.Reflections("org.geysermc.connector.network.translators.world.block.entity")
-                                        .save("${project.artifactId}/target/classes/META-INF/reflections/org.geysermc.connector.network.translators.world.block.entity-reflections.xml")
-                                ]]></script>
-                            </scripts>
-                        </configuration>
-                    </execution>
-                </executions>
-                <dependencies>
-                    <dependency>
-                        <groupId>org.reflections</groupId>
-                        <artifactId>reflections</artifactId>
-                        <version>0.9.11</version>
-                    </dependency>
-                    <dependency>
-                        <groupId>org.dom4j</groupId>
-                        <artifactId>dom4j</artifactId>
-                        <version>2.1.3</version>
-                    </dependency>
-                    <dependency>
-                        <groupId>org.codehaus.groovy</groupId>
-                        <artifactId>groovy-all</artifactId>
-                        <version>3.0.5</version>
-                        <scope>runtime</scope>
-                        <type>pom</type>
-                    </dependency>
-                </dependencies>
-            </plugin>
             <plugin>
                 <groupId>org.apache.maven.plugins</groupId>
                 <artifactId>maven-surefire-plugin</artifactId>

connector/src/main/java/org/geysermc/connector/GeyserConnector.java

@@ -524,18 +524,6 @@ public class GeyserConnector {
         return !"DEV".equals(GeyserConnector.VERSION);
     }
 
-    /**
-     * Whether to use XML reflections in the jar or manually find the reflections.
-     * Will return true if in production and the platform is not Fabric.
-     * On Fabric - it complains about being unable to create a default XMLReader.
-     * On other platforms this should only be true in compiled jars.
-     *
-     * @return whether to use XML reflections
-     */
-    public boolean useXmlReflections() {
-        return !this.getPlatformType().equals(PlatformType.FABRIC) && isProductionEnvironment();
-    }
-
     public static GeyserConnector getInstance() {
         return instance;
     }

connector/src/main/java/org/geysermc/connector/network/translators/PacketTranslatorRegistry.java

@@ -35,7 +35,6 @@ import org.geysermc.connector.GeyserConnector;
 import org.geysermc.connector.network.session.GeyserSession;
 import org.geysermc.connector.utils.FileUtils;
 import org.geysermc.connector.utils.LanguageUtils;
-import org.reflections.Reflections;
 
 import java.util.HashMap;
 import java.util.Map;
@@ -49,9 +48,7 @@ public class PacketTranslatorRegistry<T> {
     private static final ObjectArrayList<Class<?>> IGNORED_PACKETS = new ObjectArrayList<>();
 
     static {
-        Reflections ref = GeyserConnector.getInstance().useXmlReflections() ? FileUtils.getReflections("org.geysermc.connector.network.translators") : new Reflections("org.geysermc.connector.network.translators");
-
-        for (Class<?> clazz : ref.getTypesAnnotatedWith(Translator.class)) {
+        for (Class<?> clazz : FileUtils.getGeneratedClassesForAnnotation(Translator.class)) {
             Class<?> packet = clazz.getAnnotation(Translator.class).packet();
 
             GeyserConnector.getInstance().getLogger().debug("Found annotated translator: " + clazz.getCanonicalName() + " : " + packet.getSimpleName());

connector/src/main/java/org/geysermc/connector/network/translators/item/ItemTranslator.java

@@ -43,7 +43,6 @@ import org.geysermc.connector.registry.type.ItemMapping;
 import org.geysermc.connector.registry.type.ItemMappings;
 import org.geysermc.connector.utils.FileUtils;
 import org.geysermc.connector.utils.LocaleUtils;
-import org.reflections.Reflections;
 
 import java.util.*;
 import java.util.stream.Collectors;
@@ -61,10 +60,8 @@ public abstract class ItemTranslator {
 
     static {
         /* Load item translators */
-        Reflections ref = GeyserConnector.getInstance().useXmlReflections() ? FileUtils.getReflections("org.geysermc.connector.network.translators.item") : new Reflections("org.geysermc.connector.network.translators.item");
-
         Map<NbtItemStackTranslator, Integer> loadedNbtItemTranslators = new HashMap<>();
-        for (Class<?> clazz : ref.getTypesAnnotatedWith(ItemRemapper.class)) {
+        for (Class<?> clazz : FileUtils.getGeneratedClassesForAnnotation(ItemRemapper.class)) {
             int priority = clazz.getAnnotation(ItemRemapper.class).priority();
 
             GeyserConnector.getInstance().getLogger().debug("Found annotated item translator: " + clazz.getCanonicalName());

connector/src/main/java/org/geysermc/connector/registry/Registries.java

@@ -55,9 +55,9 @@ import java.util.Set;
 public class Registries {
     public static final SimpleRegistry<NbtMap> BIOMES = SimpleRegistry.create("bedrock/biome_definitions.dat", RegistryLoaders.NBT);
 
-    public static final SimpleMappedRegistry<String, BlockEntityTranslator> BLOCK_ENTITIES = SimpleMappedRegistry.create("org.geysermc.connector.network.translators.world.block.entity", BlockEntityRegistryLoader::new);
+    public static final SimpleMappedRegistry<String, BlockEntityTranslator> BLOCK_ENTITIES = SimpleMappedRegistry.create("org.geysermc.connector.network.translators.world.block.entity.BlockEntity", BlockEntityRegistryLoader::new);
 
-    public static final SimpleMappedRegistry<Integer, BlockCollision> COLLISIONS = SimpleMappedRegistry.create(Pair.of("org.geysermc.connector.network.translators.collision.translators", "mappings/collision.json"), CollisionRegistryLoader::new);
+    public static final SimpleMappedRegistry<Integer, BlockCollision> COLLISIONS = SimpleMappedRegistry.create(Pair.of("org.geysermc.connector.network.translators.collision.translators.Translator", "mappings/collision.json"), CollisionRegistryLoader::new);
 
     public static final VersionedRegistry<Map<RecipeType, List<CraftingData>>> CRAFTING_DATA = VersionedRegistry.create(RegistryLoaders.empty(Int2ObjectOpenHashMap::new));
 
@@ -77,7 +77,7 @@ public class Registries {
 
     public static final SimpleMappedRegistry<SoundEffect, Effect> SOUND_EFFECTS = SimpleMappedRegistry.create("mappings/effects.json", SoundEffectsRegistryLoader::new);
 
-    public static final SimpleMappedRegistry<SoundHandler, SoundInteractionHandler<?>> SOUND_HANDLERS = SimpleMappedRegistry.create("org.geysermc.connector.network.translators.sound", SoundHandlerRegistryLoader::new);
+    public static final SimpleMappedRegistry<SoundHandler, SoundInteractionHandler<?>> SOUND_HANDLERS = SimpleMappedRegistry.create("org.geysermc.connector.network.translators.sound.SoundHandler", SoundHandlerRegistryLoader::new);
 
     public static void init() {
         // no-op

connector/src/main/java/org/geysermc/connector/registry/loader/AnnotatedRegistryLoader.java

@@ -26,9 +26,7 @@
 package org.geysermc.connector.registry.loader;
 
 import it.unimi.dsi.fastutil.objects.Object2ObjectOpenHashMap;
-import org.geysermc.connector.GeyserConnector;
 import org.geysermc.connector.utils.FileUtils;
-import org.reflections.Reflections;
 
 import java.lang.annotation.Annotation;
 import java.util.Map;
@@ -46,8 +44,7 @@ public class AnnotatedRegistryLoader<R, A extends Annotation, V> implements Regi
     @Override
     public Map<R, V> load(String input) {
         Map<R, V> entries = new Object2ObjectOpenHashMap<>();
-        Reflections ref = GeyserConnector.getInstance().useXmlReflections() ? FileUtils.getReflections(input) : new Reflections(input);
-        for (Class<?> clazz : ref.getTypesAnnotatedWith(this.annotation)) {
+        for (Class<?> clazz : FileUtils.getGeneratedClassesForAnnotation(input)) {
             try {
                 entries.put(this.mapper.apply(clazz.getAnnotation(this.annotation)), (V) clazz.newInstance());
             } catch (InstantiationException | IllegalAccessException ex) {

connector/src/main/java/org/geysermc/connector/registry/loader/CollisionRegistryLoader.java

@@ -40,7 +40,6 @@ import org.geysermc.connector.network.translators.collision.translators.OtherCol
 import org.geysermc.connector.network.translators.collision.translators.SolidCollision;
 import org.geysermc.connector.registry.BlockRegistries;
 import org.geysermc.connector.utils.FileUtils;
-import org.reflections.Reflections;
 
 import java.io.InputStream;
 import java.lang.reflect.InvocationTargetException;
@@ -55,8 +54,7 @@ public class CollisionRegistryLoader extends MultiResourceRegistryLoader<String,
         Int2ObjectMap<BlockCollision> collisions = new Int2ObjectOpenHashMap<>();
 
         Map<Class<?>, CollisionInfo> annotationMap = new HashMap<>();
-        Reflections ref = GeyserConnector.getInstance().useXmlReflections() ? FileUtils.getReflections(input.key()) : new Reflections(input.key());
-        for (Class<?> clazz : ref.getTypesAnnotatedWith(CollisionRemapper.class)) {
+        for (Class<?> clazz : FileUtils.getGeneratedClassesForAnnotation(CollisionRemapper.class.getName())) {
             GeyserConnector.getInstance().getLogger().debug("Found annotated collision translator: " + clazz.getCanonicalName());
 
             CollisionRemapper collisionRemapper = clazz.getAnnotation(CollisionRemapper.class);

connector/src/main/java/org/geysermc/connector/utils/FileUtils.java

@@ -30,16 +30,15 @@ import com.fasterxml.jackson.databind.DeserializationFeature;
 import com.fasterxml.jackson.databind.ObjectMapper;
 import com.fasterxml.jackson.dataformat.yaml.YAMLFactory;
 import org.geysermc.connector.GeyserConnector;
-import org.reflections.Reflections;
-import org.reflections.serializers.XmlSerializer;
-import org.reflections.util.ConfigurationBuilder;
 
 import java.io.*;
-import java.net.URL;
+import java.lang.annotation.Annotation;
 import java.nio.charset.StandardCharsets;
 import java.nio.file.Files;
 import java.security.MessageDigest;
+import java.util.Set;
 import java.util.function.Function;
+import java.util.stream.Collectors;
 
 public class FileUtils {
 
@@ -193,24 +192,6 @@ public class FileUtils {
         return sha1;
     }
 
-    /**
-     * Get the stored reflection data for a given path
-     *
-     * @param path The path to get the reflection data for
-     * @return The created Reflections object
-     */
-    public static Reflections getReflections(String path) {
-        Reflections reflections = new Reflections(new ConfigurationBuilder().setScanners());
-        XmlSerializer serializer = new XmlSerializer();
-        URL resource = FileUtils.class.getClassLoader().getResource("META-INF/reflections/" + path + "-reflections.xml");
-        try (InputStream inputStream = resource.openConnection().getInputStream()) {
-            reflections.merge(serializer.read(inputStream));
-        } catch (IOException ignored) {
-        }
-
-        return reflections;
-    }
-
     /**
      * An android compatible version of {@link Files#readAllBytes}
      *
@@ -242,4 +223,41 @@ public class FileUtils {
             throw new RuntimeException("Error while trying to read input stream!");
         }
     }
+
+    /**
+     * Returns a set of all the classes that are annotated by a given annotation.
+     * Keep in mind that these are from a set of generated annotations generated
+     * at compile time by the annotation processor, meaning that arbitrary annotations
+     * cannot be passed into this method and expected to have a set of classes
+     * returned back.
+     *
+     * @param annotationClass the annotation class
+     * @return a set of all the classes annotated by the given annotation
+     */
+    public static Set<Class<?>> getGeneratedClassesForAnnotation(Class<? extends Annotation> annotationClass) {
+        return getGeneratedClassesForAnnotation(annotationClass.getName());
+    }
+
+    /**
+     * Returns a set of all the classes that are annotated by a given annotation.
+     * Keep in mind that these are from a set of generated annotations generated
+     * at compile time by the annotation processor, meaning that arbitrary annotations
+     * cannot be passed into this method and expected to have a set of classes
+     * returned back.
+     *
+     * @param input the fully qualified name of the annotation
+     * @return a set of all the classes annotated by the given annotation
+     */
+    public static Set<Class<?>> getGeneratedClassesForAnnotation(String input) {
+        InputStream annotatedClass = FileUtils.getResource(input);
+        BufferedReader reader = new BufferedReader(new InputStreamReader(annotatedClass));
+        return reader.lines().map(className -> {
+            try {
+                return Class.forName(className);
+            } catch (ClassNotFoundException ex) {
+                GeyserConnector.getInstance().getLogger().error("Failed to find class " + className, ex);
+                throw new RuntimeException(ex);
+            }
+        }).collect(Collectors.toSet());
+    }
 }

connector/src/main/resources/META-INF/services/javax.annotation.processing.Processor

@@ -0,0 +1,5 @@
+org.geysermc.processor.BlockEntityProcessor
+org.geysermc.processor.CollisionRemapperProcessor
+org.geysermc.processor.ItemRemapperProcessor
+org.geysermc.processor.PacketTranslatorProcessor
+org.geysermc.processor.SoundHandlerProcessor

pom.xml

@@ -31,6 +31,7 @@
     </scm>
 
     <modules>
+        <module>ap</module>
         <module>bootstrap</module>
         <module>common</module>
         <module>connector</module>