I'm getting an issue when my application starts up. The application fails when configuring log levels, on a ClassCastException java.util.HashMap cannot be cast to org.springframework.boot.logging.L...

I'm working with a micro-service built using Java 11, this service has a dependency built in Java 8. Dependency has rest-clients in it and there is a method that does this: public <T> Respo...

I have a Service that I am trying to bind to my main Activity, but I am receiving a java.lang.ClassCastException: android.os.BinderProxy cannot be cast to com.walintukai.rubix.ConnectionService$L...

I am running into a weird problem . I have a class A which implements Parcelable interface in kotlin. I am passing the array of class A from one activity to another no issues here. var arrayOfA:...

I have 2 different Java projects, one has 2 classes: dynamicbeans.DynamicBean2 and dynamic.Validator. On the other project, I load both of these classes dynamically and store them on an Object cl...

I'm using Hibernate with an EntityManager. When I use Session session = (Session)entityManager.getDelegate(); session.flush(); session.clear(); I get java.lang.ClassCastException: org.hib...

I am doing a java project and I got this problem and don't know how to fix it. The classes in my project (simplified): public class Item { private String itemID; private Integer price; publ...

ArrayList marks = new ArrayList(); Double sum = 0.0; sum = ((Double)marks.get(i)); Everytime I try to run my program, I get a ClassCastException that states: java.lang.Integer cannot be cast to j...

when I am running this code its giving me exception java.lang.ClassCastException: java.util.ArrayList cannot be cast to java.lang.String on q1.list(); Query q=session.createQuery("select categor...

I created a report using JasperSoft Studio. I'm referencing to this helpful post Jaspersoft Studio: How to use Collection of Java Beans in data adapter by Alex K I'd like to retrieve a list of or...

I execute a native query by JPA. My DB is oracle and I have a Clob column. When I get the result, How can I get the clob value from the resultList? I cast it to String and I get ClassCastException....

I was experiencing occasional exceptions in XPages application: java.lang.ClassCastException: someClass incompatible with someClass. Both mentioned classes are the same, it is class used as sess...

Switching from LinearLayout to ConstraintLayout throwing this error java.lang.ClassCastException: android.support.v7.widget.ActivityChooserView$InnerLayout cannot be cast to android.support.v7.wid...

I use filterFunction method of datatable on primefaces 5.0. I want to filter birthday by date range on column header. On browser console I receive this error: <?xml version="1.0" encoding="ut...

Suppose I have a method @SuppressWarnings("unchecked") public <T extends Number> T getNumber() { try { return (T)number; } catch (ClassCastException e) { return null; } } Assuming nu...

I have two different webapps, and each load the same class A with different classloader. When I put one instance in the session and then get it from the other webapp, a ClassCastException is thrown...

i'm very confused... I have a class which directly implements an interface: public class Device implements AutocompleteResult {...} Here is proof that I'm looking at the right variables: Objec...

I create 2 classes(Meal, Restaurant) which extend ParseObject, and create 2 custom adapters(BottomFragmentMealAdapter, RestaurantAdapter). I tried to do whatever I made in BottomFragmentMealAdapter...

As always I was looking through JDK 8 sources and found very interesting code: @Override default void forEachRemaining(Consumer<? super Integer> action) { if (action instanceof IntConsumer)...

I have the following JOINED inheritance root entity for geographic areas (like continents, countries, states etc.): @Entity @Table(name = "GeoAreas") @Inheritance(strategy = InheritanceType.JOINED...

I am trying simple word-count example on spark in Cluster Mode and Local Mode it works fine in local mode but throwing class cast exception in Cluster Mode here is code snippet... package com.exa...

In my application, I have a layout which has a RelativeLayout to which I want to set margins at runtime programmatically. But when I do that, it gives me ClassCastException saying FrameLayout can n...

I'm attempting to pass a serialized LinkedHashMap between activities, and getting a confusing result/error when I deserialize the object. I serialize the object as follows: Bundle exDetails = n...

This morning I came in to my office and the first thing I saw: my company site crashed. Because of me I think. Now I tried for one hour and a half to fix this, but I found nothing and everybody lo...

I'm trying to add a header to an ExpandableListView like so: headerView = View.inflate(this, R.layout.header, null); expandableListView.addHeaderView(headerView); expandableListView.setAdapter(new...