class java.lang.Integer cannot be cast to class java.lang.Long code example

Example 1: java.lang.long cannot be cast to java.lang.integer

Long.valueOf(x).intValue()

Example 2: java.lang.long cannot be cast to java.lang.integer

Integer.valueOf(x).longValue()

Example 3: class java.lang.Integer cannot be cast to class java.lang.Long (java.lang.Integer and java.lang.Long are in module java.base of loader 'bootstrap')

// on my case, instead of casting I did:

Long variable = Long.valueOf(variable.get("Attribute").toString());