diff --git a/hashmap.patch b/hashmap.patch
deleted file mode 100644
index e5d0f5d..0000000
--- a/hashmap.patch
+++ /dev/null
@@ -1,20 +0,0 @@
---- plexus-utils-plexus-utils-3.3.0/src/main/java/org/codehaus/plexus/util/introspection/ClassMap.java	2022-03-24 06:42:26.828858166 +0100
-+++ plexus-utils-plexus-utils-3.3.0/src/main/java/org/codehaus/plexus/util/introspection/ClassMap.java	2022-03-24 06:43:39.629312093 +0100
-@@ -18,7 +18,7 @@
- 
- import java.lang.reflect.Method;
- import java.lang.reflect.Modifier;
--import java.util.Hashtable;
-+import java.util.HashMap;
- import java.util.Map;
- 
- /**
-@@ -50,7 +50,7 @@
-     /**
-      * Cache of Methods, or CACHE_MISS, keyed by method name and actual arguments used to find it.
-      */
--    private Map<String, Object> methodCache = new Hashtable<String, Object>();
-+    private Map<String, Object> methodCache = new HashMap<String, Object>();
- 
-     private final MethodMap methodMap = new MethodMap();
- 
diff --git a/plexus-utils.spec b/plexus-utils.spec
index 01cccdd..9d74f39 100644
--- a/plexus-utils.spec
+++ b/plexus-utils.spec
@@ -26,7 +26,6 @@ URL:            https://codehaus-plexus.github.io/plexus-utils/
 Source0:        https://github.com/codehaus-plexus/%{name}/archive/%{name}-%{version}.tar.gz
 Source1:        %{name}-build.xml
 Source2:        http://apache.org/licenses/LICENSE-2.0.txt
-Patch0:         hashmap.patch
 BuildRequires:  ant
 BuildRequires:  fdupes
 BuildRequires:  javapackages-local
@@ -48,7 +47,6 @@ Javadoc for %{name}.
 
 %prep
 %setup -q -n %{name}-%{name}-%{version}
-%patch0 -p1
 
 cp %{SOURCE1} build.xml
 cp %{SOURCE2} .