PDFBOX-5660: close input, as suggested by Valery Bokov; closes #293

git-svn-id: https://svn.apache.org/repos/asf/pdfbox/trunk@1929339 13f79535-47bb-0310-9956-ffa450edef68

Author: THausherr

pdfbox/src/test/java/org/apache/pdfbox/pdmodel/graphics/image/PNGConverterTest.java

@@ -166,9 +166,9 @@ void testImageConversionGrayGamma() throws IOException
 
     private void checkImageConvertFail(String name) throws IOException
     {
-        try (PDDocument doc = new PDDocument())
+        try (PDDocument doc = new PDDocument();
+            InputStream in = PNGConverterTest.class.getResourceAsStream(name))
         {
-            InputStream in = PNGConverterTest.class.getResourceAsStream(name);
             byte[] imageBytes = in.readAllBytes();
             PDImageXObject pdImageXObject = PNGConverter.convertPNGImage(doc, imageBytes);
             assertNull(pdImageXObject);
@@ -177,9 +177,9 @@ private void checkImageConvertFail(String name) throws IOException
 
     private void checkImageConvert(String name) throws IOException
     {
-        try (PDDocument doc = new PDDocument())
+        try (PDDocument doc = new PDDocument();
+             InputStream in = PNGConverterTest.class.getResourceAsStream(name))
         {
-            InputStream in = PNGConverterTest.class.getResourceAsStream(name);
             byte[] imageBytes = in.readAllBytes();
             PDImageXObject pdImageXObject = PNGConverter.convertPNGImage(doc, imageBytes);
             assertNotNull(pdImageXObject);
@@ -369,9 +369,9 @@ void testImageConversionIntentIndexed() throws IOException
     {
         checkImageConvert("929316.png");
 
-        try (PDDocument doc = new PDDocument())
+        try (PDDocument doc = new PDDocument();
+             InputStream in = PNGConverterTest.class.getResourceAsStream("929316.png"))
         {
-            InputStream in = PNGConverterTest.class.getResourceAsStream("929316.png");
             byte[] imageBytes = in.readAllBytes();
             PDImageXObject pdImageXObject = PNGConverter.convertPNGImage(doc, imageBytes);
             assertEquals(COSName.PERCEPTUAL, pdImageXObject.getCOSObject().getItem(COSName.INTENT));