diff --git a/build.gradle.kts b/build.gradle.kts
index bc9ce53..f5de2c4 100644
--- a/build.gradle.kts
+++ b/build.gradle.kts
@@ -1,12 +1,14 @@
+
 import java.security.MessageDigest
-import java.text.SimpleDateFormat
-import java.util.Date
-plugins {
-    id("java")
-    id("java-library")
-    id("maven-publish")
-    id("com.github.johnrengelman.shadow") version ("8.1.1")
-}
+        import java.text.SimpleDateFormat
+        import java.util.Date
+
+        plugins {
+            id("java")
+            id("java-library")
+            id("maven-publish")
+            id("com.github.johnrengelman.shadow") version ("8.1.1")
+        }
 
 val GROUPSID = project.properties["GROUPSID"] as String
 val VERSIONS = project.properties["VERSIONS"] as String
@@ -22,6 +24,8 @@ group = GROUPSID
 version = VERSIONS
 
 val libDir = rootDir.resolve("build").resolve("libs")
+val publicationsDir =
+    rootDir.resolve("build").resolve("publications").resolve("mavenJava")
 
 java {
     withSourcesJar()
@@ -32,7 +36,8 @@ dependencies {
     testImplementation(platform("org.junit:junit-bom:5.10.0"))
     testImplementation("org.junit.jupiter:junit-jupiter")
     testRuntimeOnly("org.junit.platform:junit-platform-launcher")
-    implementation("org.checkerframework:checker-qual:3.43.0")
+    implementation("org.jetbrains:annotations:24.0.0")
+    annotationProcessor("org.jetbrains:annotations:24.0.0")
 }
 
 tasks.test {
@@ -49,15 +54,15 @@ private fun generateHash(file: File, string: String): String {
     }
 }
 
-private fun getHash(file: File) {
+private fun getHash(outpath: String, file: File) {
     val md5 = generateHash(file, "MD5")
     val sha1 = generateHash(file, "SHA-1")
     val sha256 = generateHash(file, "SHA-256")
     val sha512 = generateHash(file, "SHA-512")
-    val md5f = File(libDir, file.getName() + ".md5")
-    val sha1f = File(libDir, file.getName() + ".sha1")
-    val sha256f = File(libDir, file.getName() + ".sha256")
-    val sha512f = File(libDir, file.getName() + ".sha512")
+    val md5f = File(outpath, file.getName() + ".md5")
+    val sha1f = File(outpath, file.getName() + ".sha1")
+    val sha256f = File(outpath, file.getName() + ".sha256")
+    val sha512f = File(outpath, file.getName() + ".sha512")
     md5f.writeText(md5)
     sha1f.writeText(sha1)
     sha256f.writeText(sha256)
@@ -125,11 +130,13 @@ tasks.register("build-jar") {
     dependsOn(tasks["sourcesJar"])
     dependsOn(tasks["generatePomFileForMavenJavaPublication"])
     dependsOn(tasks["generateMetadataFileForMavenJavaPublication"])
-    /*doLast {
-        getHash(File(libDir, jarName))
-        getHash(File(libDir, fatJarName))
-        getHash(File(libDir, srcJarName))
-    }*/
+    doLast {
+        getHash(libDir.toString(),File(libDir, jarName))
+        getHash(libDir.toString(),File(libDir, fatJarName))
+        getHash(libDir.toString(),File(libDir, srcJarName))
+        getHash(publicationsDir.toString(),File(publicationsDir, "module.json"))
+        getHash(publicationsDir.toString(),File(publicationsDir, "pom-default.xml"))
+    }
 }
 components {
     withType<AdhocComponentWithVariants>().configureEach {
@@ -155,3 +162,4 @@ publishing {
     }
 }
 
+