dropdown with div tag: unable to select the options

I have following code -for quikr.com

1. when I am passing valid value for category dropdown (like jobs), I am able to select the dropdown value but immidiately the dropdown value is getting chnaged to default one (All categories)

2. the else part is not working when I want to select random value from dropdown.

Moreover "List<WebElement> list = category.findElements(By.tagName("li"));" is not working I guess, When I am trying to print the list value, its not working, though list size is coming correctly.

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public static String selectList(String object, String data){ //div not select
APP_LOGS.debug("Selecting from list");
try {
if(!data.equals(Constants.RANDOM_VALUE))
{
driver.findElement(By.xpath(OR.getProperty(object))).click();
// Thread.sleep(1000);
Actions act = new Actions(driver);
Thread.sleep(2000);
act.moveToElement(driver.findElement(By.linkText(data))).click().build().perform();
Thread.sleep(1000);
}else {
driver.findElement(By.xpath(OR.getProperty(object))).click();
WebElement category = driver.findElement(By.xpath(OR.getProperty(object)));
List<WebElement> list = category.findElements(By.tagName("li"));

Random r = new Random();
int ind = r.nextInt(list.size());

String myS = list.get(ind).getText();
System.out.println("random "+myS);
Actions act = new Actions(driver);
// act.sendKeys(data).build().perform();
Thread.sleep(2000);
act.moveToElement(driver.findElement(By.linkText(myS))).click().build().perform();
}
return Constants.KEYWORD_PASS;
}catch(Exception e) {

return Constants.KEYWORD_FAIL + " cound not select from list" + e.getMessage();
}

}