Question

我试图用snakeYAML 1.13序列化一个包含hashmap的类，并且得到了一个非常奇怪的stackoverflow：

完整的代码在类中还有一些其他内容，为了简单起见我将其删除

使用的示例代码：

import java.awt.Point;
import java.util.HashMap;
import org.yaml.snakeyaml.Yaml;


class TestClass
{
    public static void main(final String args2[])
    {
        IZSkinFile f = new IZSkinFile();
        HashMap<String,Point> ep = f.getElementPositions();
        ep.put("another unimportant name",new java.awt.Point(10, 10));
        System.out.println(new Yaml().dump(f));
    }
}

class IZSkinFile
{
    public IZSkinFile(String uprogram)
    {
        elementPositions = new HashMap<>();
    }
    public IZSkinFile(){
    elementPositions = new HashMap<>();    
    }//serialisierer....
    // private HashMap<String,String> elementDefinitions;//name>typ (Grafik/text/Schriftart)
    private HashMap<String,Point> elementPositions; //basisposition des elements
    public HashMap<String, Point> getElementPositions()
    {
        return elementPositions;
    }

    public void setElementPositions(HashMap<String, Point> elementPositions)
    {
        this.elementPositions = elementPositions;
    }
}

，结果在Stackoverflow之后（仅显示上端和下端以保存不必要的行：

Exception in thread "main" java.lang.StackOverflowError
    at java.lang.AbstractStringBuilder.expandCapacity(AbstractStringBuilder.java:122)
    at java.lang.AbstractStringBuilder.ensureCapacityInternal(AbstractStringBuilder.java:114)
    at java.lang.AbstractStringBuilder.append(AbstractStringBuilder.java:415)
    at java.lang.StringBuilder.append(StringBuilder.java:132)
    at org.yaml.snakeyaml.nodes.Tag.<init>(Tag.java:87)
    at org.yaml.snakeyaml.representer.Representer.representJavaBean(Representer.java:74)
    at org.yaml.snakeyaml.representer.Representer$RepresentJavaBean.representData(Representer.java:49)
    at org.yaml.snakeyaml.representer.BaseRepresenter.representData(BaseRepresenter.java:106)
    at org.yaml.snakeyaml.representer.Representer.representJavaBeanProperty(Representer.java:125)
    at org.yaml.snakeyaml.representer.Representer.representJavaBean(Representer.java:83)
    at org.yaml.snakeyaml.representer.Representer$RepresentJavaBean.representData(Representer.java:49)
    at org.yaml.snakeyaml.representer.BaseRepresenter.representData(BaseRepresenter.java:106)
    at org.yaml.snakeyaml.representer.Representer.representJavaBeanProperty(Representer.java:125)
    at org.yaml.snakeyaml.representer.Representer.representJavaBean(Representer.java:83)
    at org.yaml.snakeyaml.representer.Representer$RepresentJavaBean.representData(Representer.java:49)
    at org.yaml.snakeyaml.representer.BaseRepresenter.representData(BaseRepresenter.java:106)
    at org.yaml.snakeyaml.representer.Representer.representJavaBeanProperty(Representer.java:125)
    at org.yaml.snakeyaml.representer.Representer.representJavaBean(Representer.java:83)
...
...
...
    at org.yaml.snakeyaml.representer.Representer.representJavaBeanProperty(Representer.java:125)
    at org.yaml.snakeyaml.representer.Representer.representJavaBean(Representer.java:83)
    at org.yaml.snakeyaml.representer.Representer$RepresentJavaBean.representData(Representer.java:49)
    at org.yaml.snakeyaml.representer.BaseRepresenter.representData(BaseRepresenter.java:106)
    at org.yaml.snakeyaml.representer.Representer.representJavaBeanProperty(Representer.java:125)
    at org.yaml.snakeyaml.representer.Representer.representJavaBean(Representer.java:83)
    at org.yaml.snakeyaml.representer.Representer$RepresentJavaBean.representData(Representer.java:49)
    at org.yaml.snakeyaml.representer.BaseRepresenter.representData(BaseRepresenter.java:106)
    at org.yaml.snakeyaml.representer.Representer.representJavaBeanProperty(Representer.java:125)
    at org.yaml.snakeyaml.representer.Representer.representJavaBean(Representer.java:83)
    at org.yaml.snakeyaml.representer.Representer$RepresentJavaBean.representData(Representer.java:49)
    at org.yaml.snakeyaml.representer.BaseRepresenter.representData(BaseRepresenter.java:106)

Answer 1

发现了愚蠢的问题...... 某种程度上java.awt.Point混乱，即使它只有2个属性。现在使用带有2个整数的int[]数组进行存储，因为这个错误让我发疯了。

在snakeyaml中序列化hashmap时的stackoverflow

1 个答案: