Re: [JPP-Devel] A question about null values...
SS, When you get an exception while running in Eclipse, you should be able to click on the line in the Console and have it take you to the exact line that caused the error. Even if you are not running in Eclipse, the line number should be available in the Details, and Navigate -> Go to Line should take you there. regards, Larry On 5/16/07, Sunburned Surveyor <[EMAIL PROTECTED]> wrote: > Craig, > > Thanks for your help. This tells me that the problem could possibly be > with other statements in the method throwing the null pointer > exception, not just the HashMap. I'll have to do some more digging to > see what is going on. > > You help is appreciated. > > The Sunburned Surveyor > > On 5/16/07, A. Craig West <[EMAIL PROTECTED]> wrote: > > Your cast should be fine, although of course you will get a null > > pointer exception if you ever try to actually dereference casted... > > -Craig > > > > On 5/16/07, Sunburned Surveyor <[EMAIL PROTECTED]> wrote: > > > Are you allowed to cast an object with a value of null, or does this > > > throw an exception? > > > > > > For example, would the following statement throw an exception if the > > > needToCast reference was null? > > > > > > IRendererFactoryTool casted = (IRendererFactoryTool) needToCast; > > > > > > Thanks, > > > > > > The Sunburned Surveyor > > > > > > - > > > This SF.net email is sponsored by DB2 Express > > > Download DB2 Express C - the FREE version of DB2 express and take > > > control of your XML. No limits. Just data. Click to get it now. > > > http://sourceforge.net/powerbar/db2/ > > > ___ > > > Jump-pilot-devel mailing list > > > Jump-pilot-devel@lists.sourceforge.net > > > https://lists.sourceforge.net/lists/listinfo/jump-pilot-devel > > > > > > > - > > This SF.net email is sponsored by DB2 Express > > Download DB2 Express C - the FREE version of DB2 express and take > > control of your XML. No limits. Just data. Click to get it now. > > http://sourceforge.net/powerbar/db2/ > > ___ > > Jump-pilot-devel mailing list > > Jump-pilot-devel@lists.sourceforge.net > > https://lists.sourceforge.net/lists/listinfo/jump-pilot-devel > > > > - > This SF.net email is sponsored by DB2 Express > Download DB2 Express C - the FREE version of DB2 express and take > control of your XML. No limits. Just data. Click to get it now. > http://sourceforge.net/powerbar/db2/ > ___ > Jump-pilot-devel mailing list > Jump-pilot-devel@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/jump-pilot-devel > -- http://amusingprogrammer.blogspot.com/ - This SF.net email is sponsored by DB2 Express Download DB2 Express C - the FREE version of DB2 express and take control of your XML. No limits. Just data. Click to get it now. http://sourceforge.net/powerbar/db2/ ___ Jump-pilot-devel mailing list Jump-pilot-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/jump-pilot-devel
Re: [JPP-Devel] A question about null values...
Craig, Thanks for your help. This tells me that the problem could possibly be with other statements in the method throwing the null pointer exception, not just the HashMap. I'll have to do some more digging to see what is going on. You help is appreciated. The Sunburned Surveyor On 5/16/07, A. Craig West <[EMAIL PROTECTED]> wrote: > Your cast should be fine, although of course you will get a null > pointer exception if you ever try to actually dereference casted... > -Craig > > On 5/16/07, Sunburned Surveyor <[EMAIL PROTECTED]> wrote: > > Are you allowed to cast an object with a value of null, or does this > > throw an exception? > > > > For example, would the following statement throw an exception if the > > needToCast reference was null? > > > > IRendererFactoryTool casted = (IRendererFactoryTool) needToCast; > > > > Thanks, > > > > The Sunburned Surveyor > > > > - > > This SF.net email is sponsored by DB2 Express > > Download DB2 Express C - the FREE version of DB2 express and take > > control of your XML. No limits. Just data. Click to get it now. > > http://sourceforge.net/powerbar/db2/ > > ___ > > Jump-pilot-devel mailing list > > Jump-pilot-devel@lists.sourceforge.net > > https://lists.sourceforge.net/lists/listinfo/jump-pilot-devel > > > > - > This SF.net email is sponsored by DB2 Express > Download DB2 Express C - the FREE version of DB2 express and take > control of your XML. No limits. Just data. Click to get it now. > http://sourceforge.net/powerbar/db2/ > ___ > Jump-pilot-devel mailing list > Jump-pilot-devel@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/jump-pilot-devel > - This SF.net email is sponsored by DB2 Express Download DB2 Express C - the FREE version of DB2 express and take control of your XML. No limits. Just data. Click to get it now. http://sourceforge.net/powerbar/db2/ ___ Jump-pilot-devel mailing list Jump-pilot-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/jump-pilot-devel
Re: [JPP-Devel] A question about null values...
Your cast should be fine, although of course you will get a null pointer exception if you ever try to actually dereference casted... -Craig On 5/16/07, Sunburned Surveyor <[EMAIL PROTECTED]> wrote: > Are you allowed to cast an object with a value of null, or does this > throw an exception? > > For example, would the following statement throw an exception if the > needToCast reference was null? > > IRendererFactoryTool casted = (IRendererFactoryTool) needToCast; > > Thanks, > > The Sunburned Surveyor > > - > This SF.net email is sponsored by DB2 Express > Download DB2 Express C - the FREE version of DB2 express and take > control of your XML. No limits. Just data. Click to get it now. > http://sourceforge.net/powerbar/db2/ > ___ > Jump-pilot-devel mailing list > Jump-pilot-devel@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/jump-pilot-devel > - This SF.net email is sponsored by DB2 Express Download DB2 Express C - the FREE version of DB2 express and take control of your XML. No limits. Just data. Click to get it now. http://sourceforge.net/powerbar/db2/ ___ Jump-pilot-devel mailing list Jump-pilot-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/jump-pilot-devel
[JPP-Devel] A question about null values...
Are you allowed to cast an object with a value of null, or does this throw an exception? For example, would the following statement throw an exception if the needToCast reference was null? IRendererFactoryTool casted = (IRendererFactoryTool) needToCast; Thanks, The Sunburned Surveyor - This SF.net email is sponsored by DB2 Express Download DB2 Express C - the FREE version of DB2 express and take control of your XML. No limits. Just data. Click to get it now. http://sourceforge.net/powerbar/db2/ ___ Jump-pilot-devel mailing list Jump-pilot-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/jump-pilot-devel