classcastexception

Lets say I have an array like this*: val foo: Any = 1 : Int Option(foo.asInstanceOf[String]) which fails for obvious reason: // java.lang.ClassCastException: java.lang.Integer cannot be cast to // java.lang.String // ... 48 elided Next lets consider a following class: case class DummyRow() { val foo: Any = 1 : Int def getAs[T] = foo.asInstanceOf[T] def getAsOption[T] = Option(foo.asInstanceOf[T]) } As far as I can tell getAs should behave the same way as the previous apply followed by asInstanceOf . Surprisingly it is not the case. When called alone it throws an exception: DummyRow().getAs

I need to read a JsonArray data from a file (on an SD card) and store it into a SQLite database. but I am getting a java.lang.ClassCastException: org.json.simple.JSONArray cannot be cast to org.json.JSONArray exception while parsing data to JsonArray . Data in the file is very huge, the whole data can not be stored in a single String or String Buffer or String Builder. Here is my code. FileReader fileReader = new FileReader(file_path); Object obj = jsonParser.parse(fileReader); JSONArray jsonArray = (JSONArray) obj; // Exception. Please help.. Check your import statements at the top of your

List<MyClass> myclassList = (List<MyClass>) rs.get(); TreeSet<MyClass> myclassSet = new TreeSet<MyClass>(myclassList); I don't understand why this code generates this: java.lang.ClassCastException: MyClass cannot be cast to java.lang.Comparable MyClass does not implement Comparable. I just want to use a Set to filter the unique elements of the List since my List contains unncessary duplicates. polygenelubricants Does MyClass implements Comparable<MyClass> or anything like that? If not, then that's why. For TreeSet , you either have to make the elements Comparable , or provide a Comparator .

There is a java.lang.ClassCastException when I am trying to get a installed applications icon. Here is my code. public Bitmap getAppIcon(String path) { PackageInfo pi = pm.getPackageArchiveInfo(path, 0); pi.applicationInfo.sourceDir = path; pi.applicationInfo.publicSourceDir = path; Drawable icon = pi.applicationInfo.loadIcon(pm); Bitmap APKicon = ((BitmapDrawable) icon).getBitmap(); return APKicon; } where, pm is PackageManager pm = getPackageManager(); and the error shown in the LogCat is Caused by: java.lang.ClassCastException: android.graphics.drawable.NinePatchDrawable cannot be cast to

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 14:57:32,780 MDT [http-thread-pool-8181(4)] ERROR my.package.ClientServlet - Caught exception java.lang.ClassCastException: com.sun.xml.ws.client.sei.SEIStub cannot be cast to org.apache.cxf.frontend.ClientProxy at org.apache.cxf.frontend.ClientProxy.getClient(ClientProxy.java:93) at my.package.Client.<init>(Client.java:54) at my.package.ClientServlet.testService(TestServlet.java:118) I came across this

I have been trying to do a little project that needs an appendable ObjectOutputStream. I have gone through a couple of solutions and i found this It seemed to solve my problem at first. But on further development of my project i started getting unexpected exceptions. The following are my classes. public class PPAccount implements Serializable { private Profile profile; private String email; private float accountBal; private boolean isActivated; private String activationCode; private ArrayList<Transaction> transactions; //a few functions } public class PPRestrictedAccount extends PPAccount {

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="utf-8"?><partial-response><error><error-name>java.lang.ClassCastException</error-name><error-message><![CDATA[javax.faces.component.UIPanel cannot be cast to javax.faces.component.ValueHolder]]></error-message></error></partial-response> Datatable : <p:dataTable var="person" value="#{testDateRange.persons}" id="personTable" paginator="true" styleClass="customTableStyle" editable="true" rows="10"