error: warnings found and -Werror specified in Junit

[Abhra Kar]

Hi I need to access a private method String getFoo(X509Certificate cert) of A.java in junit testing in my project ,I have written the code like this –

Method privateMethod=null;
		Class[] paramVal = new Class[1];	
		paramVal[0] = X509Certificate.class;
		
		try {
			privateMethod = A.class.getDeclaredMethod("getFoo", paramVal);
			
		} catch (NoSuchMethodException | SecurityException e) {
				e.printStackTrace();
		}
		privateMethod.setAccessible(true);

I am getting an error when running ant test

C:\Ajava:22: warning: [rawtypes] found raw type: Class
   [javac]             Class[] paramVal = new Class[1];
   [javac]             ^
   [javac]   missing type arguments for generic class Class<T>
   [javac]   where T is a type-variable:
   [javac]     T extends Object declared in class Class
   [javac] C:\A.java:22: warning: [rawtypes] found raw type: Class
   [javac]             Class[] paramVal= new Class[1];
   [javac]                                     ^
   [javac]   missing type arguments for generic class Class<T>
   [javac]   where T is a type-variable:
   [javac]     T extends Object declared in class Class
   [javac] error: warnings found and -Werror specified
   [javac] 1 error
   [javac] 2 warnings

What will be the solution for this?
Thanks

[Rob Spoor]

Class is a generic type. That means you should give it a generic type between <>, or a wildcard if you don't know what the actual type is. For instance:

Class<?>[] paramVal = new Class[1];
paramVal[0] = X509Certificate.class;

That can be made shorter by using an array initializer:

Class<?>[] paramVal = { X509Certificate.class };

Or, because Class.getDeclaredMethod's last parameter is a varargs parameter, you can skip the array completely:

privateMethod = A.class.getDeclaredMethod("getFoo", X509Certificate.class);

[Abhra Kar]

Thanks a lot Rob for the explanation.

[Rob Spoor]

You're welcome.