I’m having a problem with BufferedImage in runtime. I’m loading an .png, but the BufferedImage is null. I don’t get an IOException, but an NullPointerException. And the biggest problem to me, is that when I run this same code in netbeans he works fine… My code is The ApplicationPropert…
Tag: nullpointerexception
When using JOption Pane, During Cancelled JOption Pane, NullPointerException occurs
I have data in jTable1. I attempted to send them to jTable2 , after calculating by value entered to JOption Pane. But when I clicked on cancelled button on JOption Pane program making error. Line 80 in my code is I need help to solve this problem. Thanks in advance. Code is shown below Stack Trace shown below…
Getter, Setter & NullPointerException
Firstly, I am trying to assign the value for array I initialized locally. The class type of the array is stored inside another class and the variable is private so I am using getter and setter to set the value. But it showing “Exception in thread “main” java.lang.NullPointerException at room…
Map.ofEntries gives Null Pointer Exception on checking NULL key using containsKey()
I was fetching key from a constant map earlier using HashMap. On passing a NULL key at containsKey(), I used to get FALSE. To make the code look fancy, I tried java-8 over it. So, instead of HashMap, I started using Map.ofEntries to build my map Surprisingly, I got Null Pointer Exception when a Null key was p…
I am getting an runtime error (Null Pointer Exception) while using ListView in Android Studio
I am making a Task Manager app using ListView to Show all the tasks.But I am getting this error what I think the error is that, I am sending wrong context in my custom adapter in MainActivity.java file My custom Adapter is My Xml file for activity Main is My custom layout file is My Data class is I am
java.lang.NullPointerException at io.dropwizard.testing.junit5.DropwizardExtensionsSupport.beforeEach
I am trying to test a Dropwizard resource. My test looks like this: However, this gives the error message: which is frankly uninformative. Can someone point out what is wrong here? P/S Here is the CommonObjects constructor: which also explains why I am creating the resource extension before each test case. An…
Exception in thread “AWT-EventQueue-0” java.lang.RuntimeException: Uncompilable code – package org.netbeans.lib.awtextra does not exist [closed]
Closed. This question is not reproducible or was caused by typos. It is not currently accepting answers. This question was caused by a typo or a problem that can no longer be reproduced. While similar questions may be on-topic here, this one was resolved in a way less likely to help future readers. Closed 1 y…
Android studio – Java Null-pointer on Firebase invocation
The actual error I receive when running the program is: java.lang.NullPointerException: Attempt to invoke virtual method ‘com.google.firebase.database.DatabaseReference com.google.firebase.database.DatabaseReference.child(java.lang.String)’ on a null object reference This is my firebase database c…
Sonar Cube “null pointer exception could be thrown” : False positive?
I have a bug raised by sonar cube on following code : The bug is raised at log.info statement as it suggests to check request for NULL before using. But my doubt is in case I check it for null and if it is actually null, then I would like it to goto catch exception block, which anyhow it will
Casting Issue for Generic Array of Node Objects
I am having problem with java generic array creation where I needed to make an array of type Node. So, I did this for declaration: private Node<E> [] nodes; and later for initialization, nodes = (Node<E>[]) new Node [values.length]; When I try to do something like set the Node object’s attri…