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null PerProjectInfo causing exception [message #220523]

Tue, 13 December 2005 13:31

Eclipse User

I have some code that uses JavaCore.create() to create a IJavaProject from
a dynamic web project. The code then attempts to get the classpath from
that Java project using getRawClasspath(). The JavaProject object seems
to be created ok but an exception is thrown in the process of retrieving
the classpath. The jdt portion of the exception is shown below.

Debugging this, I've traced to
JavaModelManager.getPerProjectInfoCheckExistence().
The PerProjectInfo returned by getPerProjectInfo is null so
the newNotPresentException is thrown.

Does anyone have an idea why the PerProjectInfo might be coming back as
null?

thanks, Joan.

IWAB0503E Unable to update Java build path. Please check your system
environment.
Java Model Exception: Java Model Status [Servers does not exist]
at
org.eclipse.jdt.internal.core.JavaElement.newNotPresentExcep tion(JavaElement.java:468)
at
org.eclipse.jdt.internal.core.JavaModelManager.getPerProject InfoCheckExistence(JavaModelManager.java:1223)
at
org.eclipse.jdt.internal.core.JavaProject.getPerProjectInfo( JavaProject.java:1792)
at
org.eclipse.jdt.internal.core.JavaProject.getRawClasspath(Ja vaProject.java:1849)
at
org.eclipse.jdt.internal.core.JavaProject.getRawClasspath(Ja vaProject.java:1835)

Re: null PerProjectInfo causing exception [message #220529 is a reply to message #220523]

Tue, 13 December 2005 13:41

Eclipse User

Originally posted by: olivier_thomann.NOca.ibm.comSPAM

Joan Haggarty a écrit :
>
> I have some code that uses JavaCore.create() to create a IJavaProject
> from a dynamic web project. The code then attempts to get the classpath
> from that Java project using getRawClasspath(). The JavaProject object
> seems to be created ok but an exception is thrown in the process of
> retrieving the classpath. The jdt portion of the exception is shown below.
>
> Debugging this, I've traced to
> JavaModelManager.getPerProjectInfoCheckExistence().
> The PerProjectInfo returned by getPerProjectInfo is null so
> the newNotPresentException is thrown.
> Does anyone have an idea why the PerProjectInfo might be coming back as
> null?
You should open a bug report against JDT/Core with steps to reproduce
and build id.
Thanks.
--
Olivier

Re: null PerProjectInfo causing exception [message #220536 is a reply to message #220523]

Tue, 13 December 2005 13:42

Eclipse User

Originally posted by: richkulp.us.NO_SPAM.ibm.com

Is the dynamic web project a java project already? JavaCore.create()
doesn't make a standard project to also have a java project nature. It
simply creates a handle for the IJavaProject. The project may not even
exist. Nor will it turn the project without a java nature into one with
the java nature on it.

--
Thanks,
Rich Kulp

Re: null PerProjectInfo causing exception [message #220541 is a reply to message #220536]

Tue, 13 December 2005 14:35

Eclipse User

Rich & Oliver,

Thanks for your responses. The comment about JavaCore.create sent me off
in the direction to solve the problem which lies in my code not jdt.

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