|Related to : How to read a stack trace in ASP.NET NullReferenceException message|
|Weblogic threads going into a hang/ locked / stuck state with the following stack trace|
Weblogic monitors its threads and marks them as "stuck" after a
certain period of time if they are not returning from a method like in
a socket listener loop in thread's run method.
If you want a thread to run till the server or application stops, you
have to mark your class with a @LongRunning
(weblogic.connector.extensions.LongRunning) annotation. Weblogic will
then assign a thread to your class
|How Can a Stack Trace Point to the Wrong Line (the "return" Statement) - 40 Lines Off|
Can PDBs be off more than 2 or 3 lines?
You give the statement that you have never seen PDBs off more than a
few lines. 40 lines seem to be too much, especially when the
decompiled code doesn't look much of a difference.
However, that's not true and can be proven by a 2 liner: create a
String object, set it to nulland call ToString(). Compile and run.
Next, insert a 30 line comment, save the fil
|System.NullReferenceException in VB.NET|
You can check for NULL like this:
If Fastboot_Devices_Output IsNot Nothing AndAlso
ToolStripStatusLabel1.Text = "Device found! [Fastboot Mode]"
Button1.Enabled = True
ADB_Check_Result = False
Fastboot_Check_Result = True
Button1.Text = "Check for Devices"
As to why your string is Null at the point of this if state
|NullReferenceException using StreamReader in vb|
You have to initialize the array first. For example:
Dim TownList(10) As TownType
Then you have to initialize each TownList:
Do Until reader.EndOfStream = True
Line = reader.ReadLine
Dim record = Line.Split(",")
Dim tt As New TownType()
tt.Name = record(0)
' .... '
TownList(Count) = tt
But since you don't know the final size of the array you should use a
|NullReferenceException when calling Controller.Execute|
I am able to execute your code without any exception though the exact
scenario in your case could be different.
I am not sure, if you did it already, and if you are doing this in
Visual Studio then:
1) Wrap the code: controller.Execute(ctx); in a try...catch block so
that you should be able to see the exception detail. You can click the
"View Detail" at the bottom of exception window so that you