PDFBOX-5660: replace lambda with method reference

THausherr · THausherr · commit 48afe5f91a49 · 2025-02-04T10:20:19.000Z
git-svn-id: https://svn.apache.org/repos/asf/pdfbox/trunk@1923548 13f79535-47bb-0310-9956-ffa450edef68
diff --git a/pdfbox/src/test/java/org/apache/pdfbox/pdmodel/interactive/form/ControlCharacterTest.java b/pdfbox/src/test/java/org/apache/pdfbox/pdmodel/interactive/form/ControlCharacterTest.java
@@ -141,8 +141,10 @@ private List<String> getStringsFromStream(PDField field) throws IOException
         // trimming as Acrobat adds spaces to strings
         // where we don't
         return tokens.stream() //
-                .filter(t -> t instanceof COSString) //
-                .map(t -> ((COSString) t).getString().trim()) //
+                .filter(COSString.class::isInstance) //
+                .map(COSString.class::cast) //
+                .map(COSString::getString) //
+                .map(String::trim) //
                 .collect(Collectors.toList());
     }
 }

Original file line number	Diff line number	Diff line change
`@@ -141,8 +141,10 @@ private List<String> getStringsFromStream(PDField field) throws IOException`
`141`	`141`	`// trimming as Acrobat adds spaces to strings`
`142`	`142`	`// where we don't`
`143`	`143`	`return tokens.stream() //`
`144`		`- .filter(t -> t instanceof COSString) //`
`145`		`- .map(t -> ((COSString) t).getString().trim()) //`
	`144`	`+ .filter(COSString.class::isInstance) //`
	`145`	`+ .map(COSString.class::cast) //`
	`146`	`+ .map(COSString::getString) //`
	`147`	`+ .map(String::trim) //`
`146`	`148`	`.collect(Collectors.toList());`
`147`	`149`	`}`
`148`	`150`	`}`