PDFBOX-5660: optimize, as suggested by Valery Bokov; closes #248

git-svn-id: https://svn.apache.org/repos/asf/pdfbox/trunk@1928287 13f79535-47bb-0310-9956-ffa450edef68

Author: THausherr

pdfbox/src/main/java/org/apache/pdfbox/pdmodel/fdf/FDFAnnotationInk.java

@@ -141,7 +141,7 @@ public List<float[]> getInkList()
         COSArray array = annot.getCOSArray(COSName.INKLIST);
         if (array != null)
         {
-            List<float[]> retval = new ArrayList<>();
+            List<float[]> retval = new ArrayList<>(array.size());
             for (COSBase entry : array)
             {
                 retval.add(((COSArray) entry).toFloatArray());

pdfbox/src/main/java/org/apache/pdfbox/pdmodel/fdf/FDFDictionary.java

@@ -328,7 +328,7 @@ public List<FDFField> getFields()
         COSArray fieldArray = fdf.getCOSArray(COSName.FIELDS);
         if (fieldArray != null)
         {
-            List<FDFField> fields = new ArrayList<>();
+            List<FDFField> fields = new ArrayList<>(fieldArray.size());
             for (int i = 0; i < fieldArray.size(); i++)
             {
                 fields.add(new FDFField((COSDictionary) fieldArray.getObject(i)));
@@ -379,7 +379,7 @@ public List<FDFPage> getPages()
         COSArray pageArray = fdf.getCOSArray(COSName.PAGES);
         if (pageArray != null)
         {
-            List<FDFPage> pages = new ArrayList<>();
+            List<FDFPage> pages = new ArrayList<>(pageArray.size());
             for (int i = 0; i < pageArray.size(); i++)
             {
                 pages.add(new FDFPage((COSDictionary) pageArray.get(i)));
@@ -440,7 +440,7 @@ public List<FDFAnnotation> getAnnotations() throws IOException
         COSArray annotArray = fdf.getCOSArray(COSName.ANNOTS);
         if (annotArray != null)
         {
-            List<FDFAnnotation> annots = new ArrayList<>();
+            List<FDFAnnotation> annots = new ArrayList<>(annotArray.size());
             for (int i = 0; i < annotArray.size(); i++)
             {
                 annots.add(FDFAnnotation.create((COSDictionary) annotArray.getObject(i)));
@@ -515,7 +515,7 @@ public List<PDFileSpecification> getEmbeddedFDFs() throws IOException
         COSArray embeddedArray = fdf.getCOSArray(COSName.EMBEDDED_FDFS);
         if (embeddedArray != null)
         {
-            List<PDFileSpecification> embedded = new ArrayList<>();
+            List<PDFileSpecification> embedded = new ArrayList<>(embeddedArray.size());
             for (int i = 0; i < embeddedArray.size(); i++)
             {
                 embedded.add(PDFileSpecification.createFS(embeddedArray.get(i)));

pdfbox/src/main/java/org/apache/pdfbox/pdmodel/fdf/FDFTemplate.java

@@ -94,7 +94,7 @@ public List<FDFField> getFields()
         COSArray array = template.getCOSArray(COSName.FIELDS);
         if (array != null)
         {
-            List<FDFField> fields = new ArrayList<>();
+            List<FDFField> fields = new ArrayList<>(array.size());
             for (int i = 0; i < array.size(); i++)
             {
                 fields.add(new FDFField((COSDictionary) array.getObject(i)));