GenericsOverload.java

import java.lang.reflect.Method;

public class GenericsOverload {
    public static void main(String[] args) throws Exception {
        GenericsOverload go = new GenericsOverload();

        go.read(String.class);   //=> Class<String>
        go.read(Long.class);     //=> Class<Long>
        go.read(Integer.class);  //=> Class<T> T=class java.lang.Integer
        go.read(byte[].class);   //=> Class<T> T=class [B

        Method m = GenericsOverload.class.getMethod("read", Class.class);
        m.invoke(go, Void.class);  //=> Class<String>
    }

    public <T> T read(Class<T> klass) {
        System.out.println("Class<T> T="+klass);
        return null;
    }

    public String read(Class<String> klass) {
        System.out.println("Class<String>");
        return null;
    }

    public Long read(Class<Long> klass) {
        System.out.println("Class<Long>");
        return null;
    }
}

javap -c GenericOverload

javap -c GenericsOverload 
Compiled from "GenericsOverload.java"
public class GenericsOverload extends java.lang.Object{
public GenericsOverload();
  Code:
   0:	aload_0
   1:	invokespecial	#1; //Method java/lang/Object."<init>":()V
   4:	return

public static void main(java.lang.String[]);
  Code:
   0:	new	#2; //class GenericsOverload
   3:	dup
   4:	invokespecial	#3; //Method "<init>":()V
   7:	astore_1
   8:	aload_1
   9:	ldc_w	#4; //class java/lang/String
   12:	invokevirtual	#5; //Method read:(Ljava/lang/Class;)Ljava/lang/String;
   15:	pop
   16:	aload_1
   17:	ldc_w	#6; //class java/lang/Long
   20:	invokevirtual	#7; //Method read:(Ljava/lang/Class;)Ljava/lang/Long;
   23:	pop
   24:	aload_1
   25:	ldc_w	#8; //class java/lang/Integer
   28:	invokevirtual	#9; //Method read:(Ljava/lang/Class;)Ljava/lang/Object;
   31:	pop
   32:	aload_1
   33:	ldc_w	#10; //class "[B"
   36:	invokevirtual	#9; //Method read:(Ljava/lang/Class;)Ljava/lang/Object;
   39:	pop
   40:	return

public java.lang.Object read(java.lang.Class);
  Code:
   0:	getstatic	#11; //Field java/lang/System.out:Ljava/io/PrintStream;
   3:	new	#12; //class java/lang/StringBuilder
   6:	dup
   7:	invokespecial	#13; //Method java/lang/StringBuilder."<init>":()V
   10:	ldc	#14; //String Class<T> T=
   12:	invokevirtual	#15; //Method java/lang/StringBuilder.append:(Ljava/lang/String;)Ljava/lang/StringBuilder;
   15:	aload_1
   16:	invokevirtual	#16; //Method java/lang/StringBuilder.append:(Ljava/lang/Object;)Ljava/lang/StringBuilder;
   19:	invokevirtual	#17; //Method java/lang/StringBuilder.toString:()Ljava/lang/String;
   22:	invokevirtual	#18; //Method java/io/PrintStream.println:(Ljava/lang/String;)V
   25:	aconst_null
   26:	areturn

public java.lang.String read(java.lang.Class);
  Code:
   0:	getstatic	#11; //Field java/lang/System.out:Ljava/io/PrintStream;
   3:	ldc	#19; //String Class<String>
   5:	invokevirtual	#18; //Method java/io/PrintStream.println:(Ljava/lang/String;)V
   8:	aconst_null
   9:	areturn

public java.lang.Long read(java.lang.Class);
  Code:
   0:	getstatic	#11; //Field java/lang/System.out:Ljava/io/PrintStream;
   3:	ldc	#20; //String Class<Long>
   5:	invokevirtual	#18; //Method java/io/PrintStream.println:(Ljava/lang/String;)V
   8:	aconst_null
   9:	areturn

}

javap GenericOverload

Compiled from "GenericsOverload.java"
public class GenericsOverload extends java.lang.Object{
    public GenericsOverload();
    public static void main(java.lang.String[]);
    public java.lang.Object read(java.lang.Class);
    public java.lang.String read(java.lang.Class);
    public java.lang.Long read(java.lang.Class);
}