A DESCRIPTION OF THE PROBLEM :
When compiling a Java file containing multiple classes, including `Sample` and `sample`, only one of the compiled files is generated (e.g., `Sample.class`). The expected behavior is that both `Sample.class` and `sample.class` should be generated, as Java is case-sensitive. 


STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
1. Create a Java file with the following content:
   ```java
   class Sample {
       public static void main(String[] args) {
           System.out.println("Hello World");
       }
   }
   class sample {
       public static void main(String[] args) {
           System.out.println("Hello World");
       }
   }```
2. Compile the file using javac Filename.java.
3. Check the generated .class files

EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
Files with name Sample.class and sample.class should be present.
ACTUAL -
only one file is present.

FREQUENCY : always