Java to Scala sets

[Nithanaroy]

Java Code:

private final static Map<String, String> props = new LinkedHashMap<String, String>();

final Set<String> propSet = props.keySet(); 
StringBuilder newString = new StringBuilder(); 

for (String prop : propSet) { 
    if (newString.length() > 0) { 
        newString.append("|"); 
    } 
    newString.append(prop); 
} 

On converting this code to scala, get an error on the line,
Scala Code

...
for (prop <- propSet) {
...

saying foreach does not exist for the class java.util.Set[String]. Had to convert it to Scala set using asScalaSet(propSet) as mentioned in https://alvinalexander.com/scala/how-to-go-from-java-collections-convert-in-scala-interact.

Being new to Scala not sure if this is actually a bug to be reported here