diff --git a/modernizer-maven-plugin/src/main/resources/modernizer.xml b/modernizer-maven-plugin/src/main/resources/modernizer.xml
index d349bfb..3231d43 100644
--- a/modernizer-maven-plugin/src/main/resources/modernizer.xml
+++ b/modernizer-maven-plugin/src/main/resources/modernizer.xml
@@ -272,7 +272,7 @@ violation names use the same format that javap emits.
   <violation>
     <name>com/google/common/io/ByteStreams.copy:(Ljava/io/InputStream;Ljava/io/OutputStream;)J</name>
     <version>9</version>
-    <comment>Prefer java.io.InputStream.transferTo</comment>
+    <comment>Prefer java.io.InputStream.transferTo(InputStream, OutputStream)</comment>
   </violation>
 
   <violation>
@@ -713,6 +713,66 @@ violation names use the same format that javap emits.
     <comment>Prefer java.nio.file.Files.readAllLines(java.nio.file.Path, java.nio.charset.Charset)</comment>
   </violation>
 
+  <violation>
+    <name>org/apache/commons/io/IOUtils.copy:(Ljava/io/InputStream;Ljava/io/OutputStream;)I</name>
+    <version>9</version>
+    <comment>Prefer java.io.InputStream.transferTo(InputStream, OutputStream)</comment>
+  </violation>
+
+  <violation>
+    <name>org/apache/commons/io/IOUtils.copyLarge:(Ljava/io/InputStream;Ljava/io/OutputStream;)J</name>
+    <version>9</version>
+    <comment>Prefer java.io.InputStream.transferTo(InputStream, OutputStream)</comment>
+  </violation>
+
+  <violation>
+    <name>org/apache/commons/io/IOUtils.copy:(Ljava/io/Reader;Ljava/io/Writer;)I</name>
+    <version>9</version>
+    <comment>Prefer java.io.InputStream.transferTo(Reader, Writer)</comment>
+  </violation>
+
+  <violation>
+    <name>org/apache/commons/io/IOUtils.copyLarge:(Ljava/io/Reader;Ljava/io/Writer;)J</name>
+    <version>9</version>
+    <comment>Prefer java.io.InputStream.transferTo(Reader, Writer)</comment>
+  </violation>
+
+  <violation>
+    <name>org/apache/commons/io/IOUtils.skipFully:(Ljava/io/InputStream;J)V</name>
+    <version>12</version>
+    <comment>Prefer java.io.InputStream.skipNBytes(long)</comment>
+  </violation>
+
+  <violation>
+    <name>org/apache/commons/io/IOUtils.toByteArray:(Ljava/io/InputStream;)[B</name>
+    <version>9</version>
+    <comment>Prefer java.io.InputStream.readAllBytes(InputStream)</comment>
+  </violation>
+
+  <violation>
+    <name>org/apache/commons/io/output/NullOutputStream.NULL_OUTPUT_STREAM:Lorg/apache/commons/io/output/NullOutputStream;</name>
+    <version>11</version>
+    <comment>Prefer java.io.OutputStream.nullOutputStream()</comment>
+  </violation>
+
+  <violation>
+    <name>org/apache/commons/io/output/NullOutputStream."&lt;init&gt;":()V</name>
+    <version>11</version>
+    <comment>Prefer java.io.OutputStream.nullOutputStream()</comment>
+  </violation>
+
+  <violation>
+    <name>org/apache/commons/io/output/NullWriter.NULL_WRITER:Lorg/apache/commons/io/output/NullWriter;</name>
+    <version>11</version>
+    <comment>Prefer java.io.Writer.nullWriter()</comment>
+  </violation>
+
+  <violation>
+    <name>org/apache/commons/io/output/NullWriter."&lt;init&gt;":()V</name>
+    <version>11</version>
+    <comment>Prefer java.io.Writer.nullWriter()</comment>
+  </violation>
+
   <violation>
     <name>sun/misc/BASE64Decoder.decodeBuffer:(Ljava/lang/String;)[B</name>
     <version>8</version>
@@ -1193,6 +1253,12 @@ violation names use the same format that javap emits.
     <comment>Prefer java.io.Writer.nullWriter()</comment>
   </violation>
 
+  <violation>
+    <name>com/google/common/io/CharStreams.skipFully:(Ljava/io/Reader;J)V</name>
+    <version>12</version>
+    <comment>Prefer java.io.InputStream.skipNBytes(long)</comment>
+  </violation>
+
   <violation>
     <name>com/google/common/io/Files.toString:(Ljava/io/File;Ljava/nio/charset/Charset;)Ljava/lang/String;</name>
     <version>11</version>
diff --git a/modernizer-maven-plugin/src/test/java/org/gaul/modernizer_maven_plugin/ModernizerTest.java b/modernizer-maven-plugin/src/test/java/org/gaul/modernizer_maven_plugin/ModernizerTest.java
index bded0ca..06b1d71 100644
--- a/modernizer-maven-plugin/src/test/java/org/gaul/modernizer_maven_plugin/ModernizerTest.java
+++ b/modernizer-maven-plugin/src/test/java/org/gaul/modernizer_maven_plugin/ModernizerTest.java
@@ -30,7 +30,9 @@
 import java.io.OutputStreamWriter;
 import java.io.PrintStream;
 import java.io.PrintWriter;
+import java.io.Reader;
 import java.io.StringReader;
+import java.io.Writer;
 import java.net.HttpURLConnection;
 import java.net.NetworkInterface;
 import java.net.URI;
@@ -95,6 +97,9 @@
 import org.apache.commons.codec.binary.Base64;
 import org.apache.commons.codec.binary.Hex;
 import org.apache.commons.io.FileUtils;
+import org.apache.commons.io.IOUtils;
+import org.apache.commons.io.output.NullOutputStream;
+import org.apache.commons.io.output.NullWriter;
 import org.apache.commons.lang3.StringUtils;
 import org.gaul.modernizer_maven_plugin
     .SuppressModernizerTestClasses.SuppressedOnClass;
@@ -628,7 +633,6 @@ private static void method() throws Exception {
             Sets.unmodifiableNavigableSet(new TreeSet<Object>());
             Sets.synchronizedNavigableSet(new TreeSet<Object>());
             BaseEncoding.base64();
-            ByteStreams.copy((InputStream) null, (OutputStream) null);
             Files.toByteArray((File) null);
             Chars.compare((char) 0, (char) 0);
             Ints.compare(0, 0);
@@ -771,6 +775,12 @@ private static class Java9Violations {
         @SuppressWarnings("deprecation")
         private static void method() throws Exception {
             ByteStreams.toByteArray((InputStream) null);
+            ByteStreams.copy((InputStream) null, (OutputStream) null);
+            IOUtils.copy((InputStream) null, (OutputStream) null);
+            IOUtils.copyLarge((InputStream) null, (OutputStream) null);
+            IOUtils.copy((Reader) null, (Writer) null);
+            IOUtils.copyLarge((Reader) null, (Writer) null);
+            IOUtils.toByteArray((InputStream) null);
             new Byte((String) null);
             new Double((String) null);
             new Short((String) null);
@@ -822,8 +832,13 @@ private static void method() throws Exception {
     private static class Java11Violations {
         @SuppressWarnings("deprecation")
         private static void method() throws Exception {
+            Object object;
             ByteStreams.nullOutputStream();
             CharStreams.nullWriter();
+            object = NullOutputStream.NULL_OUTPUT_STREAM;
+            new NullOutputStream();
+            object = NullWriter.NULL_WRITER;
+            new NullWriter();
             Files.toString((File) null, (Charset) null);
             Files.write("", (File) null, (Charset) null);
             new FileReader((File) null, (Charset) null);
@@ -840,6 +855,8 @@ private static void method() throws Exception {
     private static class Java12Violations {
         private static void method() throws Exception {
             ByteStreams.skipFully(null, 0L);
+            CharStreams.skipFully(null, 0L);
+            IOUtils.skipFully((InputStream) null, 0L);
         }
     }