ThreadPool quitting upon submit

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As soon as I submit a runnable to the threadExecutor it quits and I can't figure out why. I've traced the code, but to no avail.

ExecutorService threadPool = Executors.newFixedThreadPool(threads); // create thread pool
threadPool.submit(new Multiplier(this.getColumnsOfRow(i), B.getRowsOfColumn(j), C, i, j)); // just quits here

    class Multiplier implements Runnable {

    Double[] ARow, BCol;
    Matrix C;
    int insertRow, insertCol;

    public Multiplier(Double[] ARow, Double[] BCol, Matrix C, int insertRow, int insertCol) {
        System.out.println("We are here!");  // we never get here..
        this.ARow = ARow;
        this.BCol = BCol;
        this.C = C;
        this.insertRow = insertRow;
        this.insertCol = insertCol;
    }

    @Override
    public void run() {
        double sum = 0;
        for (int i = 0; i < ARow.length; i++) {
            sum += ARow[i]*BCol[i];
        }
        C.insertValue(insertRow,insertCol,sum);
    }
}

Does anyone have any idea why this would be?

asked 32 secs ago

user2243357

76

ThreadPool quitting upon submit