diff --git a/src/main/java/cpw/mods/jarhandling/JarContents.java b/src/main/java/cpw/mods/jarhandling/JarContents.java
index bcbb675..da4366c 100644
--- a/src/main/java/cpw/mods/jarhandling/JarContents.java
+++ b/src/main/java/cpw/mods/jarhandling/JarContents.java
@@ -2,6 +2,7 @@
 
 import org.jetbrains.annotations.ApiStatus;
 
+import java.io.Closeable;
 import java.io.IOException;
 import java.net.URI;
 import java.nio.file.Path;
@@ -19,7 +20,7 @@
  * Convert to a full jar with {@link SecureJar#from(JarContents)}.
  */
 @ApiStatus.NonExtendable
-public interface JarContents extends AutoCloseable {
+public interface JarContents extends Closeable {
     /**
      * @see SecureJar#getPrimaryPath()
      */
@@ -70,10 +71,4 @@ static JarContents of(Path fileOrFolder) {
     static JarContents of(Collection<Path> filesOrFolders) {
         return new JarContentsBuilder().paths(filesOrFolders.toArray(new Path[0])).build();
     }
-
-    /**
-     * Closes the underlying resources.
-     */
-    @Override
-    void close() throws IOException;
 }
diff --git a/src/main/java/cpw/mods/jarhandling/impl/JarContentsImpl.java b/src/main/java/cpw/mods/jarhandling/impl/JarContentsImpl.java
index c019e56..d198444 100644
--- a/src/main/java/cpw/mods/jarhandling/impl/JarContentsImpl.java
+++ b/src/main/java/cpw/mods/jarhandling/impl/JarContentsImpl.java
@@ -23,7 +23,6 @@
 import java.util.Map;
 import java.util.Optional;
 import java.util.Set;
-import java.util.function.BiPredicate;
 import java.util.function.Supplier;
 import java.util.jar.JarFile;
 import java.util.jar.JarInputStream;