uncaught exception - Java [unchecked] unchecked case warning -

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ok, i've been looking around , done alot of google searching, still can't find way avoid warning. 

integer result = chooser.showopendialog(null); if (result.equals(0)) {     string tempholder = chooser.getselectedfile().getpath();     filenameload = new file(tempholder);     filenamesave = filenameload;     fileinputstream fis = null;     objectinputstream in = null;     try     {         fis = new fileinputstream(filenameload);         in = new objectinputstream(fis);;     }     catch(ioexception ex)     {         ex.printstacktrace();     }      try     {         loadfile = (arraylist<dot>)in.readobject();     }     catch(ioexception ex)     {         system.out.println("cast fail");     }     catch(classnotfoundexception ex)     {         system.out.println("cast fail");     }     catch (classcastexception ex)     {         system.out.println("cast fail");     }      try     {         in.close();     }     catch(exception ex)     {         system.out.println("failed close in");     }     save.setenabled(true);       gpanel.setdotlist(loadfile);   }

it gives me warning @ line loadfile = (arraylist)in.readobject(); i've added in catchs i'm not sure why still says uncatched. help? thanks?

it not "uncatched", "unchecked". jvm cannot tell @ runtime, i.e. when cast done, whether arraylist contains dot elements.

this warning occurs whenever cast raw type generic type. if sure cast ok, can suppress warning annotation

@suppresswarnings("unchecked")

for this, encapsulate cast in small, separate method.


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