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deep within JUnit Parameterized test runner: java.lang.ClassCastException: [Ljava.lang.Object; cannot be cast to java.util.List
In the example given for JUnit (which your Javadoc links to), the method annotated @Parameters returns Collection<Object[]>, presumably where each Object[] is an array of arguments to be passed to the test case's constructor via Constructor.newInstance. Your return value from data() should be a Collection<Object[]> instead of just Object[]; I think you need to have an argument-taking constructor for ExpectNoAltTagsInSellerNamesTest, but the JUnit docs are lacking.

Categories : Java

java.lang.ClassCastException: org.hibernate.internal.SQLQueryImpl cannot be cast to java.util.List how to fix
You forgot .list() at end of the query. It should be something like ................skill.id where skill.id = 1").list(); Refer hibernate documentation for more information.

Categories : Java

pig join with java.lang.ClassCastException: java.lang.String cannot be cast to java.lang.Integer
First I'd define a simple schema for the inputs. Based on your example I assume that your inputs are text files. Now you get the ClassCastException because just applying the schema (f1:int, f2:int) unfortunately won't do any conversion. You need to explicitly cast the output schema of STRSPLIT to (tuple(int,int)) so that flatten can generate f1:int and f2:int from it. I.e: d1 = LOAD 'data1' as (line:chararray); d2 = foreach d1 generate flatten((tuple(int,int))(STRSPLIT($0, ' +'))) as (f1:int,f2:int); d3 = LOAD 'data2' as (line:chararray); d4 = foreach d3 generate flatten((tuple(int,int))(STRSPLIT($0, ' +'))) as (f1:int,f2:int); data = join d2 by f1, d4 by f2;

Categories : Apache

java.lang.ClassCastException: java.lang.Long cannot be cast to java.lang.Integer in java 1.6
Use: ((Long) userService.getAttendanceList(currentUser)).intValue(); instead. The .intValue() method is defined in class Number, which Long extends.

Categories : Java

java.lang.ClassCastException: java.math.BigInteger cannot be cast to java.lang.Long
Use BigInteger#longValue() method, instead of casting it to Long: return firstResult.get(0).longValue(); Seems like firstResult.get(0) returns an Object. One option is to typecast to BigInteger: return ((BigInteger)firstResult.get(0)).longValue(); But don't do this. Instead use the way provided by Nambari in comments. I'm no user of Hibernate, so I can't provide Hibernate specific solution.

Categories : Java

java.lang.ClassCastException: java.lang.StackOverflowError cannot be cast to java.lang.Exception
Well the cause of the stack overflow is simple: class Test_A { Test_B b = new Test_B(); } class Test_B { Test_A a = new Test_A(); } Constructing an instance of Test_A involves constructing an instance of Test_B, which involves constructing an instance of Test_A etc. You should redesign your classes to remove this cyclic dependency. (There are alternatives which keep the dependency, but add parameterized constructors - while those could work, breaking the dependency would be a much better bet.) The ClassCastException is presumably some broken bit of code casting Throwable to Exception - unfortunately we can't tell where that broken bit of code is without the stack trace. It may not even be your code.

Categories : Java

java.lang.ClassCastException: org.apache.camel.builder.ValueBuilder cannot be cast to java.lang.String
From the API Specifications for the ClassCastException: Thrown to indicate that the code has attempted to cast an object to a subclass of which it is not an instance. So, for example, when you try to assign a org.apache.camel.builder.ValueBuilder to a java.lang.String, the operation fails to be accomplished because java.lang.String is not an subclass of org.apache.camel.builder.ValueBuilder, and therefore a ClassCastException is thrown.

Categories : Java

java.lang.ClassCastException: java.lang.String cannot be cast to Panels.AddNewClientSaveAction
In your array list objectInputFields List you are adding String in the below method public ArrayList actionPerformed () { ..... ..... objectGUID = "1452"; userGUID = "90378"; firmGUID = "3663287"; ..... ..... // Add to list objectInputFieldsList.add(objectGUID); objectInputFieldsList.add(userGUID); objectInputFieldsList.add(firmGUID); objectInputFieldsList.add(postalCode); ..... ..... } and you are trying to loop with AddNewClientSaveAction class, which will definitely cause java.lang.ClassCastException: java.lang.String cannot be cast to Panels.AddNewClientSaveAction error. public static void main(String[] args) { ....... ....... // The Error's here: for (AddNew

Categories : Java

java.lang.ClassCastException: java.lang.String cannot be cast to com.example.service.AlbumService
Looks like the third parameter where you're creating the ModelAndView object is incorrect. You're passing in a string, but the jsp:useBean tag is expecting it to be an AlbumService object. Change return new ModelAndView("storeManager", "albumService" , "albumService"); to return new ModelAndView("storeManager", "albumService" , albumService);

Categories : Java

java.util.hashmap cannot be cast to java.util.list
Wrap the Map in a List to match the expected type List<? extends Map<String, ?> of the constructor SimpleAdapter: ListAdapter adapter = new SimpleAdapter( MainActivitty.this, Arrays.asList(hm), R.layout.list_item, new String[] { key, value1,value2}, new int[] { R.id.id, R.id.value1,R.id.value2 }); Refer to this example

Categories : Java

ClassCastException: java.lang.Object[] cannot be cast to java.lang.String[][]
You need to deserialize to get back stream array. For e.g. following code snippet you can pass serializable as ObjectInputStream. ObjectInputStream ois = new ObjectInputStream(is); return (String[][]) ois.readObject();

Categories : Java

java.lang.ClassCastException: java.lang.String cannot be cast to
Your query looks like this: "SELECT E.username FROM MyUser E" The E.username part will return a list of username Strings. It should be From MyUser to get MyUser objects. Something like: List<MyUser> p1 =sn.createQuery("FROM MyUser").list();

Categories : Java

java.lang.ClassCastException: [Ljava.lang.Object; cannot be cast to com.xl.entity.Users
You can create another constructor for Users as public Users(String name, String password) and change query to String hql="select new yourpath.Users(user.name,user.password) from Users user where user.name=:name";

Categories : Java

Hibernate: java.lang.ClassCastException: [Ljava.lang.Object; cannot be cast to database.entity.Dokumenty
Your are using joins so Hibernate is not returning a list of Dokumenty but instead a list of arrays (think a list of rows), the first entry of each array would be the Dokumenty, the second one the dostawy and so on

Categories : Java

java.lang.ClassCastException: javax.faces.component.StateHolderSaver cannot be cast to [Ljava.lang.Object;
This is a known Mojarra issue and already reported as issue 2041 which is fixed in Mojarra 2.1.12. So, just upgrading your JSF libraries to at least Mojarra 2.1.12 should do. It's currently already at 2.1.26, with many more fixes related to state management and likes as compared to 2.1.12.

Categories : JSF

java.lang.ClassCastException: [Ljava.lang.Comparable; cannot be cast to
That's not how polymorphism works. You cannot refer to a superclass (or interface) "object" through a subclass reference. You can, however, refer to any subclass object through the name of its implementing interface or any superclass. Comparable c = new Element(); Or in general, you can remember that this is always legal: Object c = new String(); But this is never OK: AnyClass m = new Object();

Categories : Java

java.lang.ClassCastException, DeepNodeListImpl cannot be cast
This is the problem: Element pengguna = (Element) doc.getElementsByTagName("pengguna"); getElementsByTagName doesn't return a single element - it returns multiple elements. You probably want something like: NodeList penggunas = doc.getElementsByTagName("pengguna"); if (penggunas.getLength() != 1) { // Handle this - e.g. throw an exception } Element pengguna = (Element) penggunas.item(0); EDIT: Later, you've got a bug here: Node username = user.getElementsByTagName("username").item(i); Node password = user.getElementsByTagName("password").item(i); This should be: Node username = user.getElementsByTagName("username").item(0); Node password = user.getElementsByTagName("password").item(0); You're already within the user element - so you always want the first username an

Categories : Java

error SessionMap cannot be cast to java.util.HashMap
Problem is here: @Override public void setSession(Map abc) { //abc is actually a SessionMap, which is not a HashMap ! this.abc = (HashMap) abc; } because you suppose that abc is an HashMap, which is wrong. It is actually a SessionMap (that's what the error message says). SessionMap does not extends HashMap, it extends AbstractMap which directly extends Object. See :http://struts.apache.org/release/2.0.x/struts2-core/apidocs/org/apache/struts2/dispatcher/SessionMap.html Basically, when you implements SessionAware you suppose that the Map will be an HashMap, which is absolutely not guaranteed and is indeed not the case. I suggest you to replace the attribute definition : HashMap abc = new HashMap(); With: private Map abc; //Don't initialize it as it is done by the setter.

Categories : Java

java.lang.ClassCastException: DataCountUtilities cannot be cast to android.app.Activity
What you did is not the correct way of using activity.If you want this class should be run in the background then declare it as Service.Activity is having its own life-cycle which you have to follow.

Categories : Java

java.lang.ClassCastException: com.kk.COUNTRY cannot be cast to javax.xml.bind.JAXBElement
That's because Unmarshaller.unmarshal(File f) returns an Object and not JAXBElement. Here is the signature: public Object unmarshal( java.io.File f ) throws JAXBException; Your solution should be: COUNTRY value = unmarshaller.unmarshal(new StreamSource(new File("src\countrydetails.xml")), COUNTRY.class);

Categories : Java

Java: Unable to fix unchecked conversion required java.util.Collection
If oldV is declared as a Vector<String> just use the parameterized version of 'LinkedHashSet': Vector<String> newV = new Vector<String>( new LinkedHashSet<String>(oldV) ) you can also use the annotation @SuppressWarnings if you just want to get rid of the warnings: @SuppressWarnings("unchecked") Vector<String> newV = new Vector<String>( new LinkedHashSet(oldV) );

Categories : Java

Getting error A message body writer for Java class java.util.ArrayList/List was not found
You should add at least a getter in your StringWrapper. Without public attributes, there is nothing to serialize. So the output is correct. If you do not want a tag around the list of your strings, you can mark a single getter with @XmlValue. @XmlRootElement public class StringWrapper { public StringWrapper (){} List<String> list=new ArrayList<String>(); public void add(String s) { list.add(s); } @XmlValue public List<String> getData() { return list; } }

Categories : Java

java.lang.ClassCastException: com.sun.proxy.$Proxy8 cannot be cast to org.openqa.selenium.internal.WrapsDriver
This is a wild guess since I don't see a case where it actually worked. From the exception it seems that the WebElement that is being passed to afterWebElementAction is initialized via PageFactory. My guess is that if you pass WebElement derived from driver.findElement(), to afterWebElementAction, you wouldn't get casting exception. This is how it must be working for you in other cases most likely.

Categories : Java

xception in thread "main" java.lang.IndexOutOfBoundsException: Index: 1703, Size: 1699 at java.util.ArrayList.rangeCheck(ArrayList.java:604)
For int, contains looks up the value, while remove remove the element at the index. So after a number of deletions, the number near the end might have a smaller index, e.g., 0, 1, 2 -> 0, 2 So here contains(2) will be true, but remove(2) gives you an exception. Also, remove does have a variant that removes the first occurrence of the object.

Categories : Java

Sqoop import issue - java.lang.IncompatibleClassChangeError: Found class org.apache.hadoop.mapreduce.JobContext, but interface was expected
You are suffering from a version conflict, most likely you are running code compiled on Hadoop 1.0 on Hadoop 2.0. This is because Hadoop 1.0 and 2.0 are mostly incompatible, so you should make sure to download the version of Sqoop that matches your Hadoop distribution. For more details, look here.

Categories : Hadoop

java.io.NotSerializableException: java.util.HashMap$Values
Found the problem! The remote service was trying to throw an Exception encapsulating a Collection of String from HashMap.values(): if (!identifiersMap.isEmpty()) { context.setRollbackOnly(); BusinessException e = new BusinessException(); e.setValues(identifiersMap.values()); // here is where the problem is throw e; } HashMap has an inner class named Values (as you can see here), which is an implementation of Collection and is NOT Serializable. So, throwing an exception having the content of HashMap.values(), the remote method will throw a serialization exception instead! ArrayList, for example, is Serializable and could be used to resolve the issue. Working code: if (!identifiersMap.isEmpty()) { context.setRollbackOnly(); BusinessException e = new Business

Categories : Java

java.lang.ClassCastException: com.sun.xml.bind.v2.runtime.JAXBContextImpl cannot be cast to com.sun.xml.bind.api.JAXBRIContext
Check this thread: web client for web service. The main problem I think is that you have several jaxb jars that differ in versions. For example, I think that jaxb is already part of jaxws-rt.jar which would mean you don't need jaxb-core.jar and jaxb-impl.jar.

Categories : Java

Exception java.lang.NoSuchMethodError on java.util.Deque.push
Dequeu.push(E e) requires Object type argument to be inserted. the Dequeu declaration is fine, but __.push(new Matrix()) must cause problem.,br. You have some data field you want to push so declare an instance of Matrix that holds the data fields and then push it to Deque. Here is a sample code, hope it will help import java.util.*; public class DequeExample { private static Matrix matrix = new Matrix(); private static Deque<Matrix> deque = new LinkedList<Matrix>(); public static void main(String[] args) { for (int i = 0; i < 10; i++) { matrix.setValues(i * i, (float)Math.pow(i, 5.6f), new String("String " + Integer.toString(i))); deque.push(matrix); } System.out.println(deque.size()); } static class Ma

Categories : Java

java.lang.ClassCastException: com.google.android.gms.common.images.e cannot be cast to android.content.ComponentCallbacks
Looks like this is a bug in Google Play game services ImageManager. We were using ImageManager loadImage() to load images for unlocked achievements. Because the class causing the exception is in the ImageManager package (android.gms.common.images) we tried updating the app to stop using ImageManager (switched to using APK image files). The bug has stopped, so I guess that's the cause

Categories : Android

How would i fix this Error java.lang.Object[] cannot be cast to java.lang.String[]?
GAL.getAL() returns an ArrayList<String>, nevertheless ArrayList.toArray() returns Object[] whatever its generic type is (see API) and you cannot cast it to String[], try GAL.getAL().toArray(new String[0]) instead

Categories : Java

Using new xmlns.jcp.org namespace on composites causes java.lang.NullPointerException at java.util.concurrent.ConcurrentHashMap.putIfAbsent
The way how the new xmlns.jcp.org XML namespaces are been handled is broken in the first Mojarra releases 2.2.0 and 2.2.1. It has been fixed in Mojarra 2.2.2 (note: ticket in the link describes different problem symptom, but under the covers, it's essentially the same cause). It's recommended to upgrade to at least Mojarra 2.2.2 (always pick the newest available, if possible). GlassFish 4.0 has 2.2.0 bundled. You can get the JAR from javaserverfaces.java.net. All you need to do is to replace javax.faces.jar file in GlassFish's /modules folder with the newer version. The Java EE 7 tutorial itself is fine. It was just the implementation which was broken. This kind of trouble is by the way not unusual with the very first major GlassFish release (all hastle to get it ready on time). I recomme

Categories : JSF

A message body reader for Java class java.util.List, and Java type java.util.List<>, and MIME media type text/html was not found
I deleted all generated classes and all restful classes and the GroupUClient then the program works without problems. change from public ChatuserClient() { com.sun.jersey.api.client.config.ClientConfig config = new com.sun.jersey.api.client.config.DefaultClientConfig(); client = Client.create(config); webResource = client.resource(BASE_URI).path("entities.chatuser"); } to public ChatuserClient() { com.sun.jersey.api.client.config.ClientConfig config = new com.sun.jersey.api.client.config.DefaultClientConfig(); client = Client.create(config); webResource = client.resource(BASE_URI).path("entities.service.chatuser"); }

Categories : Java

java.lang.ref.SoftReference cannot be cast to java.lang.Comparable
A PriorityQueue created without a custom Comparator expects its elements to implement Comparable, and SoftReference does not. Try creating your PriorityQueue with a custom Comparator that can compare SoftReferences.

Categories : Java

Playorm java.lang.Integer cannot be cast to java.math.BigInteger
TypedRow is a special api and allows BigInteger, BigDecimal and String types right now.....These types however when stored are stored as the lowest bytes possible so an int value of 10 is stored as one byte. out of curiosity, why not use a MyEntity.java class annotated with @NoSqlEntity instead??? In your case, using a POJO would seem more beneficial. MyEntity.java can have any primitive types, int, double, etc. etc. We thought you were using the entities as most use the entities to make development faster. later, Dean

Categories : Java

java.math.BigInteger cannot be cast to java.lang.Long
Are you sure dynamics is a List<Long> and not List<BigInteger> ? If dynamics is a List<Long> you don't need to do a cast to (Long)

Categories : Java

Java: Selenium: WebDriver: Unable to Parse a List Object; Get Error "cannot be cast to java.lang.String"
Ok. Your problem is that tdList is a List<WebElement>, and WebElement cannot be cast to a String. If you are using a compiler, you probably got a warning on the Iterator line, saying that it was generic. You need to have that line be Iterator<WebElement> iter = tdlist.iterator();. Then you can do itr.next().getText() and you don't have to cast anything!

Categories : Java

jBOSS+ ESAPI java.lang.ClassCastException: org.jboss.logmanager.log4j.BridgeLogger cannot be cast to org.owasp.esapi.Logger
Have you tried this exclusion: <jboss-deployment-structure> <deployment> <!-- Exclusions allow you to prevent the server from automatically adding some dependencies --> <exclusions> <module name="org.apache.log4j" /> </exclusions> </deployment> </jboss-deployment-structure> I just found that on this site. The suggestion is not verified there whether it works, but you can give it a try. Edit: Another way to exclude log4j is to make it at maven having: <exclusion> <groupId>log4j</groupId> <artifactId>log4j</artifactId> </exclusion> for the maven dependency of esapi. Could that make the desired effect? (I saw that you have it at dependency tree, and I

Categories : Java

ClassCastException: java.util.ArrayList is not Comparable
As the error message says, ArrayList does not implement the Comparable interface that is required by TreeMap to do the ordering of the elements in the map. You can, however, create the TreeMap with the constructor that takes a Comparator instead, and implement the comparator according to your ordering rules.

Categories : Java

ANDROID: Force Close - java.lang.ClassCastException: com.example.httpgetandroidexample.HttpGetAndroidExample cannot be cast to android.app
You try to run a "simple" java application on Android wich you CAN'T. Start by reading the android documentation . Your application must contain at least one Activity class and you can't put public static void main(String[] args) in any of your classes.

Categories : Java

Lambda Expressions java 8 exception : java.lang.NoSuchMethodError: java.lang.invoke.LambdaMetafactory.metaFactory
I found that your example compiles fine for the latest beta. Not sure what you are trying to evaluate but I did a similar test as follows: public class LambdaTesting { public static String[] strs = { "a", "aa", "aaa"}; public static void main(String args[]) throws Exception { ExecutorService pool = Executors.newFixedThreadPool(3); Set<Future<Integer>> set = new HashSet<Future<Integer>>(); for (String word : strs) { Callable<Integer> c = (() -> word.length()); Future<Integer> future = pool.submit(c); set.add(future); } int sum = 0; for (Future<Integer> future : set) { sum += future.get(); } System.out.printf("The sum of leng

Categories : Java



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