commit bcd5c9ba0cd1607b286ef0c116f119983e3f8a15
author Arturo Bernal <arturobernalg@gmail.com> Sun Jan 30 22:16:56 2022 +0100
committer GitHub <noreply@github.com> Sun Jan 30 16:16:56 2022 -0500
tree 00d46a71037172a9a51899ffd12066e11cd80ee2
parent baf44e5d09fdc461ebd9701abae115cd28059319

Use java8 reference (#321)

src/main/java/org/apache/commons/io/FileUtils.java

diff --git a/src/main/java/org/apache/commons/io/FileUtils.java b/src/main/java/org/apache/commons/io/FileUtils.java
index 339a814..217e1e3 100644
--- a/src/main/java/org/apache/commons/io/FileUtils.java
+++ b/src/main/java/org/apache/commons/io/FileUtils.java
@@ -341,7 +341,7 @@
      * @see #forceDelete(File)
      */
     public static void cleanDirectory(final File directory) throws IOException {
-        IOConsumer.forEach(listFiles(directory, null), file -> forceDelete(file));
+        IOConsumer.forEach(listFiles(directory, null), FileUtils::forceDelete);
     }
 
     /**
@@ -354,7 +354,7 @@
      * @see #forceDeleteOnExit(File)
      */
     private static void cleanDirectoryOnExit(final File directory) throws IOException {
-        IOConsumer.forEach(listFiles(directory, null), file -> forceDeleteOnExit(file));
+        IOConsumer.forEach(listFiles(directory, null), FileUtils::forceDeleteOnExit);
     }
 
     /**

src/main/java/org/apache/commons/io/output/FilterCollectionWriter.java

diff --git a/src/main/java/org/apache/commons/io/output/FilterCollectionWriter.java b/src/main/java/org/apache/commons/io/output/FilterCollectionWriter.java
index 08e7980..0473457 100644
--- a/src/main/java/org/apache/commons/io/output/FilterCollectionWriter.java
+++ b/src/main/java/org/apache/commons/io/output/FilterCollectionWriter.java
@@ -23,6 +23,7 @@
 import java.util.Arrays;
 import java.util.Collection;
 import java.util.Collections;
+import java.util.Objects;
 import java.util.function.Predicate;
 import java.util.stream.Stream;
 
@@ -47,7 +48,7 @@
 public class FilterCollectionWriter extends Writer {
 
     @SuppressWarnings("rawtypes")
-    private static final Predicate NOT_NULL = e -> e != null;
+    private static final Predicate NOT_NULL = Objects::nonNull;
 
     @SuppressWarnings("unchecked")
     private static <T> Predicate<T> notNull() {