Read from txt file - .OutOfMemoryError: Java heap space

Question

I hava a text file. Read row by row and add every row to the LinkedMap. If number of row in file are 2 000 - OK it's work. But when number of rows > 2 500 I get the next exception:
Exception in thread "AWT-EventQueue-0" java.lang.OutOfMemoryError: Java heap space
[java] at java.util.Arrays.copyOf(Unknown Source)
[java] at java.lang.AbstractStringBuilder.expandCapacity(Unknown Source)
[java] at java.lang.AbstractStringBuilder.append(Unknown Source)
[java] at java.lang.StringBuffer.append(Unknown Source)
[java] at java.io.BufferedReader.readLine(Unknown Source)
[java] at java.io.BufferedReader.readLine(Unknown Source)
try {
         File sourceImportFile = getSourceImportFile();
         FileInputStream fin = new FileInputStream(sourceImportFile
               .getPath());
         BufferedReader br = new BufferedReader(new InputStreamReader(fin));
         String line;
         while ((line = br.readLine()) != null) { // HERE THROW  java.lang.OutOfMemoryError: Java heap space
...

Answer 1

malcolmmc wrote:
Well, it looks like it may be seeing an enormously long line. Are you sure the file you are reading is sensibly formatted?
According to the stack trace it's crashing when readLine tries to make more room for the line of text being read.
It's either that or you really are storing more data than you have room for, and 2,500 lines is not a very large file.It did occur to me that he might be trying to read a binary file as if it were a text file.