What's the problem

[scodemao]

java.lang.NullPointerException: Attempt to get length of null array
at com.elvishew.xlog.printer.file.FilePrinter.cleanLogFilesIfNecessary(FilePrinter.java:161)
at com.elvishew.xlog.printer.file.FilePrinter.doPrintln(FilePrinter.java:130)
at com.elvishew.xlog.printer.file.FilePrinter.access$200(FilePrinter.java:39)
at com.elvishew.xlog.printer.file.FilePrinter$Worker.run(FilePrinter.java:358)
at java.lang.Thread.run(Thread.java:776)

[scodemao]

i modified this function ,work well

private void cleanLogFilesIfNecessary() {
File logDir = new File(this.folderPath);
File[] files = logDir.listFiles();
if (files != null && files.length > 0) {
File[] var3 = files;
int var4 = files.length;

        for (int var5 = 0; var5 < var4; ++var5) {
            File file = var3[var5];
            if (this.cleanStrategy.shouldClean(file)) {
                file.delete();
            }
        }
    }
}

[elvishew]

Fixed in v1.6.1