[DERBY-4102] Assert failure or ClassCastException in EmbedBlob when retrieving BLOB >= 32K

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 10.1.1.0, 10.2.2.0, 10.3.3.0, 10.4.2.0, 10.5.1.1, 10.6.1.0
• Fix Version/s: 10.4.2.1, 10.5.3.1, 10.6.1.0
• Component/s: JDBC
• Urgency: Normal
• Assignee: Kristian Waagan
• Reporter: Knut Anders Hatlen
• Created: 19/Mar/09 11:52
• Updated: 02/Feb/10 09:44
• Resolved: 26/Jan/10 13:41

Description

The code below results in an assert error (with sane jars) or a ClassCastException (with insane jars):

PreparedStatement ps = c.prepareStatement("values cast(? as blob)");
int len = 32 * 1024;
ps.setBinaryStream(1, new ByteArrayInputStream(new byte[len]), len);
ResultSet rs = ps.executeQuery();
while (rs.next())

{ rs.getBlob(1); }

If len < 32K there is no error.

Issue Links

• is related to: DERBY-4130 Using large stream with 'values cast(? as clob)' causes OutOfMemoryError
• relates to: DERBY-3844 ASSERT failure in BasePage.unlatch() when running LobStreamsTest