[ https://issues.apache.org/jira/browse/MAHOUT-1415?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Sebastian Schelter reassigned MAHOUT-1415: ------------------------------------------ Assignee: Sebastian Schelter > Clone method on sparse matrices fails if there is an empty row which has not > been set explicitly > ------------------------------------------------------------------------------------------------ > > Key: MAHOUT-1415 > URL: https://issues.apache.org/jira/browse/MAHOUT-1415 > Project: Mahout > Issue Type: Bug > Components: Math > Affects Versions: 1.0 > Environment: Mac OS X Mavericks, Darwin Kernel Version 13.0.2 > Reporter: Till Rohrmann > Assignee: Sebastian Schelter > Priority: Minor > Labels: newbie > Fix For: 1.0 > > Attachments: MAHOUT-1415.patch > > Original Estimate: 10m > Remaining Estimate: 10m > > The clone method of the SparseMatrix class fails with a NullPointerException > if there exists an empty row in the matrix which has not been explicitly set. > The reason for this problem is that the clone operation iterates over all > rows and clones them whether there exists a Vector instance for this row or > not. The problem should be easily fixed by iterating only over the existing > matrix slices. -- This message was sent by Atlassian JIRA (v6.1.5#6160)