Worked patch on 1.20.1

build.gradle

@@ -61,7 +61,7 @@ processResources {
     }
 }
 
-def targetJavaVersion = 17
+def targetJavaVersion = 21
 tasks.withType(JavaCompile).configureEach {
     // ensure that the encoding is set to UTF-8, no matter what the system default is
     // this fixes some edge cases with special characters not displaying correctly
@@ -89,9 +89,11 @@ jar {
     from("LICENSE") {
         rename { "${it}_${project.archivesBaseName}" }
     }
-    from configurations.includedJars.collect {
+    from {
+        configurations.includedJars.collect {
             it.isDirectory() ? it : zipTree(it)
         }
+    }
 }
 // configure the maven publication
 publishing {

gradle.properties

@@ -2,13 +2,13 @@
 org.gradle.jvmargs=-Xmx1G
 # Fabric Properties
 # check these on https://modmuss50.me/fabric.html
-minecraft_version=1.20.1
-yarn_mappings=1.20.1+build.10
+minecraft_version=1.21.1
+yarn_mappings=1.21.1+build.3
 loader_version=0.16.5
 # Mod Properties
-mod_version=1.0.0
+mod_version=1.0.1
 maven_group=ru.bitheaven
 archives_base_name=donpayinteg
 # Dependencies
 # check this on https://modmuss50.me/fabric.html
-fabric_version=0.92.2+1.20.1
+fabric_version=0.105.0+1.21.1

src/main/java/ru/bitheaven/donpayinteg/DonPayInteg.java

@@ -16,7 +16,7 @@ public class DonPayInteg implements ModInitializer {
     public static final String MOD_ID = "donpayinteg";
     public static final String NAME = "DonatePayIntegration";
     public static final Logger LOGGER = LoggerFactory.getLogger(MOD_ID);
-    public static List<String> commands = new ArrayList<String>();
+    public static List<String> commands = new ArrayList<>();
 
     @Override
     public void onInitialize() {
@@ -38,7 +38,7 @@ public class DonPayInteg implements ModInitializer {
                 }
             }
 
-            if(i.getAndIncrement() % (20 * 2) == 0) {
+            if(j.getAndIncrement() % (20 * 2) == 0) {
                 if (!commands.isEmpty()) {
                     world.getCommandManager().executeWithPrefix(world.getCommandSource(), commands.getFirst());
                     commands.removeFirst();