classcastexception Questions
3
Solved
Kafka : ClassCastException: class org.apache.avro.generic.GenericData$Record cannot be cast to class
I have this exception in the consumer when trying to cast the record.value() into java object :
ClassCastException: class org.apache.avro.generic.GenericData$Record cannot be cast to class [...].Pu...
Dominickdominie asked 30/1, 2022 at 21:38
2
Solved
I am using Eclipse 2022-06 and Tomcat 10.0.10.
Often, when shutting down Tomcat running inside Eclipse, I get
WARNUNG: Failed to clear soft references from ObjectStreamClass$Caches for web applicat...
Attendance asked 23/8, 2022 at 11:19
0
I have missed a problem with the Java Generic type
public class MyTest {
@Test
public void test1() throws Exception {
List<Integer> list = getMapInstance();
}
public static <T extend...
Conk asked 11/5 at 8:13
11
Solved
I'm trying to change a LinearLayout from another class, but when i run this code:
public class IRC extends PircBot {
ArrayList<String> channels;
ArrayList<Integer> userCount;
ArrayLis...
Herzl asked 8/5, 2014 at 15:36
4
I have this code:
val profile: UserProfile = userApi.profile()
@GET("users/profile")
suspend fun profile(): UserProfile
When i run userApi.profile() i get this error:
java.lang.Clas...
Unobtrusive asked 22/6, 2023 at 14:29
10
Flutter newly created app gives error when using fire base.
How should i fix this problem as it is asking flutter app main activity cannot be cast to android app activity.
04-05 21:16:07.570 2739...
Defamatory asked 5/4, 2020 at 16:58
7
Solved
Studying for my OCA Java SE 7 Programmer I exam, so newbie question. I have an example question I do not understand. The following code compiles, but gives a ClassCastException at runtime:
interfa...
Bronwyn asked 10/11, 2013 at 21:17
1
Using Hazelcast version 4.2.5 in a webapp deployed on Tomcat on Kubernetes. We're frequently("every 5 seconds") seeing ClassCastException with a stacktrace in the application logs.
Here's...
Aden asked 28/10, 2022 at 3:54
8
Solved
public class Animal {
public void eat() {}
}
public class Dog extends Animal {
public void eat() {}
public void main(String[] args) {
Animal animal = new Animal();
Dog dog = (Dog) animal;
}...
Mythologize asked 1/2, 2011 at 13:11
2
Solved
I'm trying to access getter methods on my MyModelClass but my code is returning List<LinkedHashMap> instead of List<MyModelClass>. This is my code.
List<MyModelClass> myModelClass...
Stifling asked 19/10, 2013 at 7:0
4
Solved
I have the following SQL Query :
SELECT COUNT(*) FROM DOG where ID = 'SampleId';
I am trying to write this in java :
public int returnCountOfDogTable(String id){
String sql= "SELECT COUNT(*...
Paraffin asked 4/10, 2016 at 16:13
3
Solved
I'm having a strange problem when trying to run a maven build that uses the jaxb2 plugin to do JAXB codegen (see stacktrace below). The best that I can figure is that there's some implementation of...
Sunstone asked 30/9, 2010 at 15:55
3
Solved
In the following, I have a generic function fun <T : Number> sum(list : List<T>) : T with a type parameter T : Number.
In the function, I sum up the list's numbers as a sum : Double and...
Burgle asked 3/12, 2021 at 11:22
6
Solved
I have two ClassLoaders which loads the same class. So, obviously these can't cast to one another. But I need to access an object created in the other ClassLoader.
I have access to both ClassLoad...
Citronellal asked 16/8, 2011 at 6:50
5
Solved
The following code (run in android) always gives me a ClassCastException in the 3rd line:
final String[] v1 = i18nCategory.translation.get(id);
final ArrayList<String> v2 = new ArrayList<...
Madelle asked 16/4, 2011 at 23:25
2
Solved
I have a collection of String[] values, for example:
ArrayList<String[]> values = new ArrayList<>();
String[] data1 = new String[]{"asd", "asdds", "ds"};
...
Meteorograph asked 14/2, 2021 at 11:44
1
Solved
I am beginner to working with servlet.I am creating a servlet and but after running that i am getting error
Can anyone help me to resolve this.
Error
Type Exception Report
Message Class [com.pract...
Dulcy asked 24/1, 2021 at 14:56
1
I have been trying in vain to implement tomcat 9's jakarta servlet as opposed to the previous javax.servlet implementation (as its my understanding that the jakarta package is the way forward). The...
Cool asked 13/1, 2021 at 14:23
3
Solved
Although this question has already been asked but I have an implementation specific doubt.
I am trying to print the top view of the binary tree and following is the complete code for it:
import jav...
Threesome asked 4/6, 2017 at 15:44
2
Solved
A Spark DataFrame contains a column of type Array[Double]. It throw a ClassCastException exception when I try to get it back in a map() function. The following Scala code generate an exception.
ca...
Crematory asked 28/10, 2015 at 12:20
12
Solved
I read some articles written on "ClassCastException", but I couldn't get a good idea on what it means. What is a ClassCastException?
Pavlov asked 25/5, 2009 at 16:45
4
I am trying to set the width and height of 2 frame layouts which are the containers for 2 fragments, both being children of a Linear Layout.
However whenever I set width and height of the layout w...
Purposeless asked 14/10, 2016 at 8:8
3
I have a RecyclerView with a LinearLayout inside. The LinearLayout consists out of 9 buttons. Before some changes I could click the buttons and it didn't crashed. But after I added this code below ...
Hildegardhildegarde asked 7/8, 2015 at 11:38
7
Solved
I'm trying to build a client jar file to access a webservice. I'm including the jar in a servlet/war that makes the client webservice calls. I'm getting the following error:
INFO: 2011 Apr 14 14:5...
Szombathely asked 14/4, 2011 at 22:13
3
Solved
I have created a custom view named MyDraw ,this is my MyDraw code,
public class MyDraw extends View {
public MyDraw(Context context) {
super(context);
}
public MyDraw(Context context, Attr...
Mcphee asked 19/12, 2011 at 6:57
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