WebApr 9, 2024 · java.lang.ClassCastException: class java.util.Collections$UnmodifiableMap cannot be cast to class java.util.LinkedHashMap … WebTo do: approximate lines of code = 13. // Inside a try-catch block, create scanner to iterate through. // the lines in the file, extract each country, and add it to the above. // ArrayList …

java.lang.ClassCastException: java.lang.String [] cannot be cast to ...

WebClass Cast Exception sometime happen because of the conflict between different version of the java. in pom.xml i set to use "1.8 but in Intellje IDE i set to use java version 11. after changing java version from 11 to 8 problem solved for me. – Saman Salehi Jun 13, 2024 at 15:36 WebJan 25, 2016 · First, Arrays.asList () should be never casted to ArrayList. Second, since generics were introduced into java programming language casting is still relevant when using legacy, pre-generics APIs. Third, never use concrete classes at the left of assignment operator. Bottom line, say sicilian manhattan cocktail

java.lang.ClassCastException: java.util.HashMap cannot be cast to java ...

WebMar 3, 2015 · Arrays.asList returns a List implementation, but it's not a java.util.ArrayList.It happens to have a classname of ArrayList, but that's a nested class within Arrays - a … WebFeb 17, 2013 · The type casting is unnecessary since all objects in java are of type Object. If you are using a IDE like eclipse you can put a break point on the line where you are assigning the Object obj = getClassA (); and inspect the value returned by getClassA (). Else you can try to put a instanceof condition before assigning the value to obj. WebNov 11, 2024 · However, the compiler doesn't allow us to do something like objectMapper.readValue (jsonString, ArrayList.class). Instead, we can pass a TypeReference object to the objectMapper.readValue (String content, TypeReference valueTypeRef) method. In this case, we just need to pass new … sicilian meatloaf recipe rachael ray