Monitoring small Graphs Not Being Generated

Openfire Plugins
1

Setup is Openfire 4.2.3 and Monitoring plugin 1.6.1

On the Statistics page, all the small graphs are shown as Pictures not found.

In the logs stacktrace is found:

org.jivesoftware.openfire.container.PluginServlet - Null ‘paint’ argument.
java.lang.IllegalArgumentException: Null ‘paint’ argument.
at org.jfree.chart.plot.XYPlot.setDomainGridlinePaint(XYPlot.java:1925)
at org.jivesoftware.openfire.reporting.graph.GraphEngine.generateSparklineAreaChart(GraphEngine.java:487)
at org.jivesoftware.openfire.reporting.graph.GraphEngine.generateSparklinesGraph(GraphEngine.java:180)
at org.jivesoftware.openfire.reporting.graph.GraphServlet.service(GraphServlet.java:120)

I commented in the GraphEngine.java the lines (2x) //plot.setDomainGridlinePaint(null); This solved the issue, but i have no clue what is the reason behind this and if it breaks something else.

2

Linux OS with OpenJDK? This might be similar Monitoring Graphs Not Being Generated

3

No, Windows and Oracle Java 8. But maybe it is a development issue. I compiled the plugin myself.

Still the java doc of Jfree explicitly says that this setters parameter should not be null.

4

I’m not a developer myself, so can’t say. If you think it should be that way, make a pull request with this change on Github and it might get fixed.

5

I’ve created this issue to track the problem: https://issues.igniterealtime.org/browse/OF-1578

1 Like
6

This issue exists in version 2.0.1

2020.05.20 10:14:09 org.jivesoftware.openfire.reporting.stats.StatsEngine - Error initializing Rrdb from dbPath 'conversations' of datasource 'conversations'. Statistic name: Conversations (type: count)
java.lang.ArrayIndexOutOfBoundsException: null
2020.05.20 10:14:09 org.jivesoftware.openfire.container.PluginServlet - null
java.lang.NullPointerException: null
at org.jivesoftware.openfire.reporting.graph.GraphEngine.populateData(GraphEngine.java:193) ~[?:?]
at org.jivesoftware.openfire.reporting.graph.GraphEngine.generateSparklineBarGraph(GraphEngine.java:568) ~[?:?]
at org.jivesoftware.openfire.reporting.graph.GraphEngine.generateSparklinesGraph(GraphEngine.java:177) ~[?:?]
at org.jivesoftware.openfire.reporting.graph.GraphServlet.service(GraphServlet.java:120) ~[?:?]
at javax.servlet.http.HttpServlet.service(HttpServlet.java:790) ~[javax.servlet-api-3.1.0.jar:3.1.0]
at org.jivesoftware.openfire.container.PluginServlet.handleServlet(PluginServlet.java:461) ~[xmppserver-4.5.1.jar:4.5.1]
at org.jivesoftware.openfire.container.PluginServlet.service(PluginServlet.java:134) [xmppserver-4.5.1.jar:4.5.1]