[DERBY-4061] InputStream returned from Blob.getBinaryStream(long, long) terminates the stream by returning 0, should return -1

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 10.3.3.0, 10.4.2.0, 10.5.1.1
• Fix Version/s: 10.3.3.1, 10.4.2.1, 10.5.1.1
• Component/s: JDBC
• Assignee: Kristian Waagan
• Reporter: Trejkaz
• Created: 16/Feb/09 22:05
• Updated: 12/May/10 07:38
• Resolved: 24/Feb/09 14:34

Description

Take the following code to copy a sub-stream from a BLOB:

Blob blob = rs.getBlob(1);
InputStream stream = blob.getBinaryStream(1000, 2000);
try {
IOUtils.copy(stream, out);
} finally {
stream.close();
}

This will loop forever in IOUtils.copy, as the InputStream is returning 0 at end of stream instead of -1. It probably should return -1 to comply with the Javadoc for InputStream.

Notes:
I have not yet checked Blob.getBinaryStream(), or any of the Clob methods, or the client driver. So some of these may have a similar issue.