GH-323 a memory intensive try at fixing a windows/jdk file lock issue.

pcorless · Dec 7, 2023 · 57be4bc · 57be4bc
1 parent 9851759
commit 57be4bc
Showing 1 changed file with 18 additions and 9 deletions.
diff --git a/core/core-awt/src/main/java/org/icepdf/core/pobjects/Document.java b/core/core-awt/src/main/java/org/icepdf/core/pobjects/Document.java
@@ -195,9 +195,12 @@ public void setFile(String filepath)
  try {
  randomAccessFile = new RandomAccessFile(file, "r");
  documentFileChannel = randomAccessFile.getChannel();
- ByteBuffer mappedFileByteBuffer = documentFileChannel.map(
- FileChannel.MapMode.READ_ONLY, 0, documentFileChannel.size());
- setInputStream(mappedFileByteBuffer);
+ long fileSize = documentFileChannel.size();
+ // Create an in memory file opy
+ ByteBuffer buffer = ByteBuffer.allocate((int) fileSize);
+ documentFileChannel.read(buffer);
+ buffer.flip();
+ setInputStream(buffer);
  } catch (Exception e) {
  logger.log(Level.SEVERE, "Failed to set document file path", e);
  throw e;
@@ -271,9 +274,12 @@ public void setInputStream(InputStream inputStream, String pathOrURL)
  try {
  randomAccessFile = new RandomAccessFile(tempFile, "r");
  documentFileChannel = randomAccessFile.getChannel();
- ByteBuffer mappedFileByteBuffer = documentFileChannel.map(
- FileChannel.MapMode.READ_ONLY, 0, documentFileChannel.size());
- setInputStream(mappedFileByteBuffer);
+ long fileSize = documentFileChannel.size();
+ // Create an in memory file opy
+ ByteBuffer buffer = ByteBuffer.allocate((int) fileSize);
+ documentFileChannel.read(buffer);
+ buffer.flip();
+ setInputStream(buffer);
  } catch (Exception e) {
  logger.log(Level.SEVERE, "Failed to set document input stream", e);
  throw e;
@@ -327,9 +333,12 @@ public void setByteArray(byte[] data, int offset, int length, String pathOrURL)
  try {
  randomAccessFile = new RandomAccessFile(tempFile, "r");
  documentFileChannel = randomAccessFile.getChannel();
- ByteBuffer mappedFileByteBuffer = documentFileChannel.map(
- FileChannel.MapMode.READ_ONLY, 0, documentFileChannel.size());
- setInputStream(mappedFileByteBuffer);
+ long fileSize = documentFileChannel.size();
+ // Create an in memory file opy
+ ByteBuffer buffer = ByteBuffer.allocate((int) fileSize);
+ documentFileChannel.read(buffer);
+ buffer.flip();
+ setInputStream(buffer);
  } catch (Exception e) {
  logger.log(Level.SEVERE, "Failed to set document input stream", e);
  throw e;