PDFBOX-5660: close input, as suggested by Valery Bokov; closes #299

git-svn-id: https://svn.apache.org/repos/asf/pdfbox/trunk@1929420 13f79535-47bb-0310-9956-ffa450edef68

Author: THausherr

pdfbox/src/test/java/org/apache/pdfbox/filter/TestFilters.java

@@ -22,7 +22,6 @@
 import java.io.IOException;
 import java.io.InputStream;
 import java.util.ArrayList;
-
 import java.util.Random;
 
 import org.apache.pdfbox.Loader;
@@ -148,10 +147,12 @@ void testPDFBOX4517() throws IOException
     @Test
     void testPDFBOX1977() throws IOException
     {
-        Filter lzwFilter = FilterFactory.INSTANCE.getFilter(COSName.LZW_DECODE);
-        InputStream in = this.getClass().getResourceAsStream("PDFBOX-1977.bin");
-        byte[] byteArray = in.readAllBytes();
-        checkEncodeDecode(lzwFilter, byteArray);
+        try (InputStream is = this.getClass().getResourceAsStream("PDFBOX-1977.bin"))
+        {
+            Filter lzwFilter = FilterFactory.INSTANCE.getFilter(COSName.LZW_DECODE);
+            byte[] byteArray = is.readAllBytes();
+            checkEncodeDecode(lzwFilter, byteArray);
+        }
     }
 
     /**