jodd-core/src/main/java/jodd/io/upload/impl/AdaptiveFileUpload.java
@Override
	public byte[] getFileContent() throws IOException {
		if (data != null) {
			return data;
		}
		if (tempFile != null) {
			return FileUtil.readBytes(tempFile);
		}
		return null;
	}
@Override
	public byte[] getFileContent() throws IOException {
		if (data != null) {
			return data;
		}
		if (tempFile != null) {
			return FileUtil.readBytes(tempFile);
		}
		return null;
	}
Returns the content of file upload item.