Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]

Groups > comp.lang.java.programmer > #9827

Re: Object IllegalStateException Problem

Show all headers | View raw

ptreves <ptreves@gmail.com> wrote:
> java.lang.IllegalStateException: Please load a version of an object
> before saving!
>       at
> com.gepower.d400.model.config.ConfigurationImpl.getSaveFile(ConfigurationImpl.java:
> 309)

Have a closer look at ConfigurationImpl.getSaveFile!

If you quote the method, don't forget to insert a comment indicating
which of the lines is number 309 within ConfigurationImpl.java.

> Now, I am thincking that the command:
> hmiAccessMgrModel.equals(null)
> is causing the problem and should be re-written as:
> hmiAccessMgrModel == null

Yes, it really should be re-written as you say.

As it is: if the left side ever *was* null, then you 
get a NullPointerException rather than a true result
from xyz.equals(null)

Back to comp.lang.java.programmer | Previous | Next — Previous in thread | Next in thread | Find similar | Unroll thread

Thread

Object IllegalStateException Problem ptreves <ptreves@gmail.com> - 2011-11-10 08:23 -0800
  Re: Object IllegalStateException Problem Andreas Leitgeb <avl@gamma.logic.tuwien.ac.at> - 2011-11-10 16:51 +0000
    Re: Object IllegalStateException Problem ptreves <ptreves@gmail.com> - 2011-11-10 08:59 -0800
      Re: Object IllegalStateException Problem Patricia Shanahan <pats@acm.org> - 2011-11-10 10:21 -0800
      Re: Object IllegalStateException Problem Lew <lewbloch@gmail.com> - 2011-11-10 15:03 -0800

csiph-web