diff --git a/util/src/main/java/dev/openrs2/util/io/DeterministicJarOutputStream.kt b/util/src/main/java/dev/openrs2/util/io/DeterministicJarOutputStream.kt
index cbe2a704..ce2e0bc7 100644
--- a/util/src/main/java/dev/openrs2/util/io/DeterministicJarOutputStream.kt
+++ b/util/src/main/java/dev/openrs2/util/io/DeterministicJarOutputStream.kt
@@ -1,10 +1,7 @@
 package dev.openrs2.util.io
 
 import java.io.OutputStream
-import java.nio.file.Files
-import java.nio.file.Path
 import java.nio.file.attribute.FileTime
-import java.util.jar.JarInputStream
 import java.util.jar.JarOutputStream
 import java.util.jar.Manifest
 import java.util.zip.ZipEntry
@@ -22,24 +19,5 @@ class DeterministicJarOutputStream : JarOutputStream {
 
     companion object {
         private val UNIX_EPOCH = FileTime.fromMillis(0)
-
-        fun create(out: OutputStream, manifest: Manifest? = null): JarOutputStream {
-            return if (manifest != null) {
-                DeterministicJarOutputStream(out, manifest)
-            } else {
-                DeterministicJarOutputStream(out)
-            }
-        }
-
-        fun repack(src: Path, dest: Path) {
-            JarInputStream(Files.newInputStream(src)).use { input ->
-                create(Files.newOutputStream(dest), input.manifest).use { output ->
-                    for (entry in input.entries) {
-                        output.putNextEntry(entry)
-                        input.copyTo(output)
-                    }
-                }
-            }
-        }
     }
 }
diff --git a/util/src/test/java/dev/openrs2/util/io/DeterministicJarOutputStreamTest.kt b/util/src/test/java/dev/openrs2/util/io/DeterministicJarOutputStreamTest.kt
index 0724e2f3..1cd40242 100644
--- a/util/src/test/java/dev/openrs2/util/io/DeterministicJarOutputStreamTest.kt
+++ b/util/src/test/java/dev/openrs2/util/io/DeterministicJarOutputStreamTest.kt
@@ -1,15 +1,11 @@
 package dev.openrs2.util.io
 
-import com.google.common.jimfs.Configuration
-import com.google.common.jimfs.Jimfs
 import java.io.ByteArrayInputStream
 import java.io.ByteArrayOutputStream
-import java.nio.file.Files
 import java.nio.file.attribute.FileTime
 import java.util.jar.Attributes
 import java.util.jar.JarEntry
 import java.util.jar.JarInputStream
-import java.util.jar.JarOutputStream
 import java.util.jar.Manifest
 import kotlin.test.Test
 import kotlin.test.assertEquals
@@ -27,7 +23,7 @@ object DeterministicJarOutputStreamTest {
     @Test
     fun testPutNextEntry() {
         ByteArrayOutputStream().use { out ->
-            DeterministicJarOutputStream.create(out).use { jar ->
+            DeterministicJarOutputStream(out).use { jar ->
                 val entry = JarEntry("Hello.class")
                 entry.creationTime = Y2K
                 entry.lastAccessTime = Y2K
@@ -55,7 +51,7 @@ object DeterministicJarOutputStreamTest {
     @Test
     fun testManifest() {
         ByteArrayOutputStream().use { out ->
-            DeterministicJarOutputStream.create(out, manifest).use { jar ->
+            DeterministicJarOutputStream(out, manifest).use { jar ->
                 jar.putNextEntry(JarEntry("Hello.class"))
             }
 
@@ -64,44 +60,4 @@ object DeterministicJarOutputStreamTest {
             }
         }
     }
-
-    @Test
-    fun testRepack() {
-        Jimfs.newFileSystem(Configuration.unix()).use { fs ->
-            val originalFile = Files.createTempFile(fs.getPath("/"), "original", ".jar")
-            try {
-                JarOutputStream(Files.newOutputStream(originalFile)).use { jar ->
-                    val entry = JarEntry("Hello.class")
-                    entry.creationTime = Y2K
-                    entry.lastAccessTime = Y2K
-                    entry.lastModifiedTime = Y2K
-                    jar.putNextEntry(entry)
-                }
-
-                val repackedFile = Files.createTempFile(fs.getPath("/"), "repacked", ".jar")
-                try {
-                    DeterministicJarOutputStream.repack(originalFile, repackedFile)
-
-                    JarInputStream(Files.newInputStream(repackedFile)).use { jar ->
-                        assertNull(jar.manifest)
-
-                        val entry = jar.nextJarEntry
-                        assertNotNull(entry)
-
-                        assertEquals("Hello.class", entry.name)
-                        assertEquals(0, entry.time)
-                        assertEquals(UNIX_EPOCH, entry.creationTime)
-                        assertEquals(UNIX_EPOCH, entry.lastAccessTime)
-                        assertEquals(UNIX_EPOCH, entry.lastModifiedTime)
-
-                        assertNull(jar.nextJarEntry)
-                    }
-                } finally {
-                    Files.deleteIfExists(repackedFile)
-                }
-            } finally {
-                Files.deleteIfExists(originalFile)
-            }
-        }
-    }
 }