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IDProjectCategoryView StatusDate SubmittedLast Update
0007674VTK(No Category)public2008-09-15 05:322016-08-12 09:55
ReporterKristian Sons 
Assigned ToKitware Robot 
PrioritynormalSeveritycrashReproducibilityalways
StatusclosedResolutionmoved 
PlatformOSOS Version
Product Version 
Target VersionFixed in Version 
Project
Type
Summary0007674: [VTK Java] Crashes if setting null - Object
DescriptionFollowing code leads to a crash in jvm.dll:

vtkActor myActor = new vtkActor();
myActor.SetTexture(null);

Thus it is not possible to unset the texture of an actor. Same is true for all other functions with objects as parameter.

Steps To Reproduce
Additional InformationReason:
This is because JNI:GetObjectClass will be called with null object. This is not allowed (s.http://java.sun.com/j2se/1.5.0/docs/guide/jni/spec/functions.html#wp16334 [^]).

Fix suggestion:
In vtkJavaUtil.cxx change function vtkJavaGetPointerFromObject to:

JNIEXPORT void *vtkJavaGetPointerFromObject(JNIEnv *env, jobject obj)
{
    return obj == NULL ? NULL : (void*)(size_t)vtkJavaGetId(env, obj);
}
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Issue History
Date ModifiedUsernameFieldChange
2008-09-15 05:32Kristian SonsNew Issue
2008-10-16 06:45dbarbierNote Added: 0013892
2008-10-23 04:29dbarbierNote Added: 0013920
2011-06-16 13:11Zack GalbreathCategory => (No Category)
2016-08-12 09:55Kitware RobotNote Added: 0037016
2016-08-12 09:55Kitware RobotStatusexpired => closed
2016-08-12 09:55Kitware RobotResolutionopen => moved
2016-08-12 09:55Kitware RobotAssigned To => Kitware Robot

Notes
(0013892)
dbarbier   
2008-10-16 06:45   
IMHO this check could be moved into vtkJavaGetId to protect both methods
(0013920)
dbarbier   
2008-10-23 04:29   
In fact this bug had been fixed in CVS 1.63 few days before being reported, and has now been push into 5.2 branch, it can be closed.
(0037016)
Kitware Robot   
2016-08-12 09:55   
Resolving issue as `moved`.

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