[Pellet-users] null pointer exception in Individual.getRNeighborEdges(Individual.java: 690)

[Henk-Jan Lebbink]

Dear List,

I’m a dedicated Protégé and recently also a Pellet user. I and some
colleagues use Pellet in combination with Protégé 3.4 to do consistency
checks on our ontologies. However, we stumbled on a null pointer exception
that, for the moment, we could not circumvent. The ontology is large, the
expression was something with needles and haystacks - you get the point.

Question: does someone know how to circumvent the exception (see below),
or how can I submit some sort of bug report.

With regards, and thanks in advance!
Henk-Jan Lebbink.

---
C:\Documents and Settings\Bo\Bureaublad\pellet 1.5.1 (8081)>rem  java -Xss4m
-Xms30m -Xmx1600m -clas
spath lib\pellet.jar org.mindswap.pellet.dig.PelletDIGServer

C:\Documents and Settings\Bo\Bureaublad\pellet 1.5.1 (8081)>"C:\Program
Files\Java\jre1.6.0_05\bin\j
ava.exe" -Xss4m -Xms30m -Xmx2000000000 -classpath lib\pellet.jar -
Dpellet.configuration=file:pellet.
properties org.mindswap.pellet.dig.PelletDIGServer

PelletDIGServer Version 1.5.1 (October 26 2007)
Port: 8081
java.lang.NullPointerException
        at org.mindswap.pellet.Individual.getRNeighborEdges(Individual.java
:690)
        at org.mindswap.pellet.CompletionStrategy.applyAllValues(
CompletionStrategy.java:920)
        at org.mindswap.pellet.CompletionStrategy.addType(
CompletionStrategy.java:273)
        at org.mindswap.pellet.CompletionStrategy.applyUnfoldingRule(
CompletionStrategy.java:643)
        at org.mindswap.pellet.CompletionStrategy.applyUnfoldingRule(
CompletionStrategy.java:614)
        at org.mindswap.pellet.CompletionStrategy.initialize(
CompletionStrategy.java:170)
        at org.mindswap.pellet.SROIQStrategy.complete(SROIQStrategy.java
:120)
        at org.mindswap.pellet.ABox.isConsistent(ABox.java:1605)
        at org.mindswap.pellet.ABox.isConsistent(ABox.java:1489)
        at org.mindswap.pellet.KnowledgeBase.consistency(KnowledgeBase.java
:1568)
        at org.mindswap.pellet.KnowledgeBase.isConsistent(KnowledgeBase.java
:1589)
        at org.mindswap.pellet.dig.DIGAskHandler.asks(DIGAskHandler.java:54)
        at org.mindswap.pellet.dig.PelletDIGReasoner.process(
PelletDIGReasoner.java:160)
        at org.mindswap.pellet.dig.PelletDIGReasoner.process(
PelletDIGReasoner.java:112)
        at org.mindswap.pellet.dig.PelletDIGReasoner.process(
PelletDIGReasoner.java:102)
        at org.mindswap.pellet.dig.PelletDIGServer.handle(
PelletDIGServer.java:74)
        at org.mortbay.http.HttpContext.handle(HttpContext.java:1565)
        at org.mortbay.http.HttpContext.handle(HttpContext.java:1517)
        at org.mortbay.http.HttpServer.service(HttpServer.java:954)
        at org.mortbay.http.HttpConnection.service(HttpConnection.java:816)
        at org.mortbay.http.HttpConnection.handleNext(HttpConnection.java
:983)
        at org.mortbay.http.HttpConnection.handle(HttpConnection.java:833)
        at org.mortbay.http.SocketListener.handleConnection(
SocketListener.java:244)
        at org.mortbay.util.ThreadedServer.handle(ThreadedServer.java:357)
        at org.mortbay.util.ThreadPool$PoolThread.run(ThreadPool.java:534)