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我有一个 GUI 应用程序，当通过控制台启动时它工作正常。如果我通过双击启动 jar，它可以正常启动，但在某个时候，可能在从 jar 读取序列化对象时，它会停止。

相关代码：

public static void nashEQ() {
    if(!running){
    running = true;
    Generator.generateTables();
    int u0 = Generator.handRanks[53 + Board[0]];
    int u1 = Generator.handRanks[u0 + Board[1]];
    int u2 = Generator.handRanks[u1 + Board[2]];
    int u3 = Generator.handRanks[u2 + Board[3]];
    int u4 = Generator.handRanks[u3 + Board[4]];
    distributionOne.setProbabilities();
    distributionTwo.setProbabilities();
    distributionOne.SetRelativeProbabilities(distributionTwo);
    distributionTwo.SetRelativeProbabilities(distributionOne);
    distributionOne.setRanks(u4);
    distributionTwo.setRanks(u4);
    DecisionNode d = createGame();
    double[] p1 = distributionOne.getProbabilities();
    double[] p2 = distributionTwo.getProbabilities();
    for (int i = 0; i <= MaxIteration; i++) {
        d.trainVanilla(0, p1, p2);
        d.trainVanilla(1, p2, p1);
        CurrentIteration = i;
    }
    // double br0 = d.bestResponse(0);
    // double br1 = d.bestResponse(1);
    // System.out.println("BR0: " + br0);
    // System.out.println("BR1: " + br1);
    // System.out.println("Exploitability: " + Math.abs(pot - (br0 + br1)));
    double[] r = d.trainVanilla(0, p1, p2);
    double res = 0;
    for (int i = 0; i < r.length; i++) {
        res += 1.0 / r.length * r[i];
    }
    System.out.println("EV: " + res);
    Save save = Save.createSave(d);
    SimpleViewerDialog saveD = new SimpleViewerDialog(save);
    saveD.setVisible(true);
    running = false;
}
}
public static void generateTables() {
    ObjectInputStream ois = null;
    Object o = null;
    try {
        ois = new ObjectInputStream(Generator.class.getClassLoader().getResourceAsStream("handEvaluation/handRanks"));
        o = ois.readObject();
        if (o instanceof int[]) {
            handRanks = (int[]) o;
        }
    }catch(EOFException e){
        if (o instanceof int[]) {
            handRanks = (int[]) o;
        }
    }       
    catch (Exception e) {
        e.printStackTrace();
        int card;
        int handRank;
        int keyIndex;
        long key;
        for (keyIndex = 0; keys[keyIndex] != 0 || keyIndex == 0; keyIndex++) {

            for (card = 1; card < 53; card++) { // add a card to each
                                                // previously calculated key
                key = makeKey(keys[keyIndex], card); // create the new key

                if (numCards < 7)
                    insertKey(key); // insert the new key into the key
                                    // lookup table
            }
        }
        for (keyIndex = 0; keys[keyIndex] != 0 || keyIndex == 0; keyIndex++) {

            for (card = 1; card < 53; card++) {
                key = makeKey(keys[keyIndex], card);

                if (numCards < 7) {
                    handRank = insertKey(key) * 53 + 53; // if number of
                                                            // cards is < 7
                                                            // insert key
                } else {
                    handRank = getHandRank(key); // if number of cards is 7
                                                    // insert hand rank
                }

                maxHandRankIndex = keyIndex * 53 + card + 53; // calculate
                                                                // hand rank
                                                                // insertion
                                                                // index
                handRanks[maxHandRankIndex] = handRank; // populate hand
                                                        // rank lookup table
                                                        // with appropriate
                                                        // value
            }

            if (numCards == 6 || numCards == 7) {
                // insert the hand rank into the hand rank lookup table
                handRanks[keyIndex * 53 + 53] = getHandRank(keys[keyIndex]);
            }
        }
        ObjectOutputStream oos = null;
        try {
            oos = new ObjectOutputStream(new FileOutputStream(
                    "src/handEvaluation/handRanks"));
            oos.writeObject(handRanks);
        } catch (FileNotFoundException f) {
            // TODO Auto-generated catch block
            f.printStackTrace();
        } catch (IOException f) {
            // TODO Auto-generated catch block
            f.printStackTrace();
        } finally {
            if (oos != null)
                try {
                    oos.close();
                } catch (IOException g) {
                    // TODO Auto-generated catch block
                    g.printStackTrace();
                }
        }

    } finally {
        if (ois != null)
            try {
                ois.close();
            } catch (IOException g) {
                // TODO Auto-generated catch block
                g.printStackTrace();
            }
    }
} // END generateTables method
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1 回答 1

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我找到了解决方案：错误的原因是，当我通过控制台启动它时，JVM 分配了更多的内存，而不是双击，即使我没有通过控制台传递任何参数。

我有一个 OutOfMemoryException。我通过增加堆大小来修复它。

于 2013-09-22T18:10:04.860 回答