Inference variable T has incompatible bounds lower bounds: Integer

Question

I got the following code:

public static <T extends Comparable<T>> void isPalindrome(T[] array)
{
 //body
}

and also these arrays:

Integer[] intArray = {1,2,5,7,9,0,7}; 
Integer[] intArray2 = {1,1,2,2,2,2,1,1}; 
String[] strArray = {"a","b","c","c","b","a"}; 
String[] strArray2 = {"a","b","c","e","f","a"}; 
isPalindrome(intArray);
isPalindrome(intArray2);
isPalindrome(strArray); 
isPalindrome(strArray2);

before I compile and when I hover over ispalindrome it shows me the following error:

 method isPalindrome in class Main cannot be applied to given types;
 required: T[]
 found: String[]
 reason: inference variable T has incompatible bounds
 upper bounds: Comparable<T>
 lower bounds: String
 where T is a type-variable:
 T extends Comparable<T> declared in method <T>isPalindrome(T[])

I tried to use <T extends Comparable<? super T>> but it didn't work.

Edit:

I tried but nothing works for me

I have also Comparable.java class

public interface Comparable<T> {
 
 
 int compareTo(T other);
}

• Andy Turner: Works fine here.
• Andreas: Unable to reproduce. Try a clean rebuild.
• zahid med: The code seems good and It works fine.
• chrylis -cautiouslyoptimistic-: Show the fully-qualified name of Comparable in your isPalindrome signature.
• user4910279: Why do you compare with compareTo() instead of equals()?