[MSHARED-434] NPE due to concurrent calls in close() method of StreamFeeder class

• Type: Bug
• Status: Closed
• Priority: Blocker
• Resolution: Fixed
• Affects Version/s: maven-shared-utils-0.8
• Fix Version/s: maven-shared-utils-0.9
• Component/s: maven-shared-utils
• Assignee: Tibor Digana
• Reporter: Tibor Digana
• Created: 15/Sep/15 18:51
• Updated: 15/Sep/15 19:21
• Resolved: 15/Sep/15 19:21

Description

monitor enter fetched null pointer into variable within synchronized block and close() method on InputStream cannot be called.

private InputStream input;

       if ( input != null )
        {
            synchronized ( input )
            {
                try
                {
                    input.close();
                }
                catch ( IOException ex )
                {
                    // ignore
                }

                input = null;
            }
        }