Out of memory error in Kotlin when looping through a medium size data set
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I am running the below loop in Kotlin and is throwing an out of memory error. I am running this for reading the rows in a csv file. Size of "records" is 6422. fun readCSVFile(filePath: String): List<String> { val reader = FileReader(filePath) val records = CSVFormat.DEFAULT.parse(reader) val rows = mutableListOf<String>() var output = "" records.forEach() { val size = it.size() for (i in 0 until it.size()-1) { output = output + it.get(i) + "," } output.dropLast(1) rows.add(output) } return rows } Below is the exception I get. Exception in thread "main" java.lang.OutOfMemoryError: GC overhead limit exceeded at java.util.Arrays.copyOf(Arrays.java:3332) at java.l...