一分钟前工作的方法的java.lang.VerifyError

Question

提前道歉,但我以前从未见过这个错误,也不知道要包括什么.我正在使用NetBeans并突然开始收到此错误:

Exception in thread "AWT-EventQueue-0" java.lang.VerifyError: (class: market/CostOperations, method: <init> signature: ()V) Constructor must call super() or this()
            at Bluebuild.Main.refreshTables(Main.java:748)
            at Bluebuild.Main.formComponentShown(Main.java:649)
            at Bluebuild.Main.access$100(Main.java:28)
            at Bluebuild.Main$2.componentShown(Main.java:374)
            at java.awt.Component.processComponentEvent(Component.java:6095)
            at java.awt.Component.processEvent(Component.java:6043)
            at java.awt.Container.processEvent(Container.java:2041)
            at java.awt.Window.processEvent(Window.java:1836)
            at java.awt.Component.dispatchEventImpl(Component.java:4630)
            at java.awt.Container.dispatchEventImpl(Container.java:2099)
            at java.awt.Window.dispatchEventImpl(Window.java:2478)
            at java.awt.Component.dispatchEvent(Component.java:4460)
            at java.awt.EventQueue.dispatchEvent(EventQueue.java:599)
            at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:269)
            at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:184)
            at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:174)
            at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:169)
            at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:161)
            at java.awt.EventDispatchThread.run(EventDispatchThread.java:122)

我不知道发生了什么.我甚至没有修改market/CostOperations.

这是构造函数:

public CostOperations() throws ParserConfigurationException, SAXException, IOException {

        //Open the xml file
        DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
        DocumentBuilder builder = factory.newDocumentBuilder();
        f = new File(dbName);
        doc = builder.parse(f);
        System.out.println(f.canWrite());

        //Create the XPath
        XPathFactory xpfactory = XPathFactory.newInstance();
        path = xpfactory.newXPath();

    }

在调试模式下我得到这个:

debug:
Have no FileObject for C:\Program Files (x86)\Java\jdk1.6.0_20\jre\lib\sunrsasign.jar
Have no FileObject for C:\Program Files (x86)\Java\jdk1.6.0_20\jre\classes

我只需要知道导致错误的原因以及如何解决它.谢谢!

Answer 1

A VerifyError表示字节码无效,指向编译器问题.我会尝试重建一切,希望它消失,但否则你应该提交一个错误.字节码是手动调用超类构造函数所必需的invokenonvirtual superclass/<init>()V,但你不需要super();在源代码中添加,编译器应该处理