Reading a file from a jar
The following code works on my Windows machine, but fails on my Linux box:
String line;
try{
BufferedReader br=new BufferedReader(new InputStreamReader(getClass().getResourceAsStream("/hss/app/images/mappings.txt")));
while ((line = br.readLine()) !=null){
if (line.indexOf('=') > -1){
String[] s = line.split("[=]");
mappings.put(s[0].trim(), s[1].trim());
}
}
}catch (IOException ex){
ex.printStackTrace();
}
With the following error:
Exception in thread"main" java.lang.ExceptionInInitializerError
at hss.cris3.ImageManager.getInstance(ImageManager.java:43)
at hss.cris3.Application.<init>(Application.java:87)
at hss.app.cris.<init>(cris.java:78)
at hss.app.cris.main(cris.java:1064)
Caused by: java.lang.NullPointerException
at java.io.Reader.<init>(Reader.java:61)
at java.io.InputStreamReader.<init>(InputStreamReader.java:55)
at hss.cris3.ImageManager.<init>(ImageManager.java:26)
at hss.cris3.ImageManager.<init>(ImageManager.java:19)
at hss.cris3.ImageManager$ImageManagerHolder.<clinit>(ImageManager.java:39)
... 4 more
Can anyone explain why? And perhaps more importantly what the solution is? Thanks.
