Simplify lambdas.

1 files changed, 8 insertions, 10 deletions

diff --git a/src/test/java/org/apache/commons/lang3/StreamsTest.java b/src/test/java/org/apache/commons/lang3/StreamsTest.java
index 3e17ed1bd..a0b79f60c 100644
--- a/src/test/java/org/apache/commons/lang3/StreamsTest.java
+++ b/src/test/java/org/apache/commons/lang3/StreamsTest.java
@@ -46,7 +46,7 @@ class StreamsTest {
     @Test
     void testSimpleStreamMap() {
         final List<String> input = Arrays.asList("1", "2", "3", "4", "5", "6");
-        final List<Integer> output = Functions.stream(input).map(s -> Integer.valueOf(s)).collect(Collectors.toList());
+        final List<Integer> output = Functions.stream(input).map(Integer::valueOf).collect(Collectors.toList());
         assertEquals(6, output.size());
         for (int i = 0;  i < 6;  i++) {
             assertEquals(i+1, output.get(i).intValue());
@@ -56,7 +56,7 @@ class StreamsTest {
     @Test
     void testSimpleStreamMapFailing() {
         final List<String> input = Arrays.asList("1", "2", "3", "4 ", "5", "6");
-        final Executable testMethod = () -> Functions.stream(input).map(s -> Integer.valueOf(s)).collect(Collectors.toList());
+        final Executable testMethod = () -> Functions.stream(input).map(Integer::valueOf).collect(Collectors.toList());
         final NumberFormatException thrown = assertThrows(NumberFormatException.class, testMethod);
         assertEquals("For input string: \"4 \"", thrown.getMessage());
     }
@@ -130,10 +130,8 @@ class StreamsTest {
     void testSimpleStreamFilter() {
         final List<String> input = Arrays.asList("1", "2", "3", "4", "5", "6");
         final List<Integer> output = Functions.stream(input)
-                .map(s -> Integer.valueOf(s))
-                .filter(i -> {
-                    return i.intValue() %2 == 0;
-                })
+                .map(Integer::valueOf)
+                .filter(i -> (i.intValue() %2 == 0))
                 .collect(Collectors.toList());
         assertEvenNumbers(output);
     }
@@ -160,7 +158,7 @@ class StreamsTest {
     Stream<DynamicTest> simpleStreamFilterFailing() {
         final List<String> input = Arrays.asList("1", "2", "3", "4", "5", "6");
         final List<Integer> output = Functions.stream(input)
-                .map(s -> Integer.valueOf(s))
+                .map(Integer::valueOf)
                 .filter(asIntPredicate(null))
                 .collect(Collectors.toList());
         assertEvenNumbers(output);
@@ -170,7 +168,7 @@ class StreamsTest {
                 dynamicTest("IllegalArgumentException", () -> {
                     final IllegalArgumentException iae = new IllegalArgumentException("Invalid argument: " + 5);
                     final Executable testMethod = () -> Functions.stream(input)
-                            .map(s -> Integer.valueOf(s))
+                            .map(Integer::valueOf)
                             .filter(asIntPredicate(iae))
                             .collect(Collectors.toList());
                     final IllegalArgumentException thrown = assertThrows(IllegalArgumentException.class, testMethod);
@@ -180,7 +178,7 @@ class StreamsTest {
                 dynamicTest("OutOfMemoryError", () -> {
                     final OutOfMemoryError oome = new OutOfMemoryError();
                     final Executable testMethod = () -> Functions.stream(input)
-                            .map(s -> Integer.valueOf(s))
+                            .map(Integer::valueOf)
                             .filter(asIntPredicate(oome))
                             .collect(Collectors.toList());
                     final OutOfMemoryError thrown = assertThrows(OutOfMemoryError.class, testMethod);
@@ -190,7 +188,7 @@ class StreamsTest {
                 dynamicTest("SAXException", () -> {
                     final SAXException se = new SAXException();
                     final Executable testMethod = () -> Functions.stream(input)
-                            .map(s -> Integer.valueOf(s))
+                            .map(Integer::valueOf)
                             .filter(asIntPredicate(se))
                             .collect(Collectors.toList());
                     final UndeclaredThrowableException thrown = assertThrows(UndeclaredThrowableException.class, testMethod);