Fix handling of AddBlocks length, DiskClipboard resize

core/src/main/java/com/boydti/fawe/jnbt/SchematicStreamer.java

@@ -33,9 +33,15 @@ public class SchematicStreamer extends NBTStreamer {
                 setupClipboard(length);
             }
         };
+        NBTStreamReader initializer2 = new NBTStreamReader<Integer, Integer>() {
+            @Override
+            public void run(Integer length, Integer type) {
+                setupClipboard(length*2);
+            }
+        };
         addReader("Schematic.Blocks.?", initializer);
         addReader("Schematic.Data.?", initializer);
-        addReader("Schematic.AddBlocks.?", initializer);
+        addReader("Schematic.AddBlocks.?", initializer2);
         addReader("Schematic.Blocks.#", new ByteReader() {
             @Override
             public void run(int index, int value) {

core/src/main/java/com/boydti/fawe/object/clipboard/DiskOptimizedClipboard.java

@@ -238,6 +238,8 @@ public class DiskOptimizedClipboard extends FaweClipboard implements Closeable {
             area = width * length;
             volume = width * length * height;
             long size = width * height * length * 2l + HEADER_SIZE + (hasBiomes() ? area : 0);
+            close();
+            this.braf = new RandomAccessFile(file, "rw");
             braf.setLength(size);
             init();
             mbb.putChar(2, (char) width);