I'm using scanner to read lines from file and replace some text in each line based on given pattern. This is done inside an API. My program is a multithreaded one. At once, more than one thread can call this particular API.
Following is the line scanner initialization line where the thread crashes:
public static void replaceInFile(Properties replacements, Path targetFile) {
...
Scanner in = new Scanner(targetFile, "UTF-8");
...
}
I'm sure no single file will be accessed by two threads at once. Can anyone hint me in the right direction as to what is happening?
UPDATE:
public Void call() throws Exception {
Iterator it = paths.iterator();
while(it.hasNext()){
try {
String filePath = it.next().toString();
//BuildUtil replacer = new BuildUtil();
BuildUtil.replaceInFile(replacements, Paths.get(filePath));
} catch(Exception e) {
e.printStackTrace();
}
}
This is the call() of the thread. Now I observe that it shows "Frame not available" even before stepping into the BuildUtils's replaceInFile method and sometimes after entering in there..I'm not able to figure out what's wrong.. The main thread is exiting I think but I see nothing strange happening here which should make it exit unexpectedly.
