XML代码运行正常,但junit因NoClassDefFound而失败

我正在将我的环境从eclipse 3.3.1和java 1.4升级到eclipse 3.4.1和java 1.5。 我的单元测试在jUnit 3中。

eclipse java版本1.5.0__17

独立的环境版本1.5.0__12或1.5.0-17,两者都可以工作。

我在一个类上有一个将XML文件写入磁盘的方法。 它调用TransformerFactory tf=[javax.xml.transform.]TransformerFactory.newInstance(); 当我在eclipse之外运行代码时,它运行良好。 当我在eclipse的jUnit中运行代码时,我得到了下面的堆栈跟踪。 缺少的类在java 1.4的rt.jar中,而不是在java 5中,但不应该从我这里抽象出来吗?

我怎样才能通过考试?

当我从应用程序运行eclipse中的代码时,我也会遇到同样的错误。

java.lang.NoClassDefFoundError: org/apache/xalan/processor/TransformerFactoryImpl
 at weblogic.xml.jaxp.RegistryTransformerFactory.(RegistryTransformerFactory.java:62)
 at weblogic.xml.jaxp.RegistrySAXTransformerFactory.(RegistrySAXTransformerFactory.java:12)
 at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
 at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)
 at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)
 at java.lang.reflect.Constructor.newInstance(Constructor.java:494)
 at java.lang.Class.newInstance0(Class.java:350)
 at java.lang.Class.newInstance(Class.java:303)
 at javax.xml.transform.FactoryFinder.newInstance(FactoryFinder.java:100)
 at javax.xml.transform.FactoryFinder.findJarServiceProvider(FactoryFinder.java:278)
 at javax.xml.transform.FactoryFinder.find(FactoryFinder.java:185)
 at javax.xml.transform.TransformerFactory.newInstance(TransformerFactory.java:103)
 at com.bellsouth.snt.cnmp.sso.netcool.NetcoolAccessThread.writeXmlFile(NetcoolAccessThread.java:278)
 at com.bellsouth.snt.cnmp.sso.netcool.NetcoolAccessThreadTest.testWriteXmlFile(NetcoolAccessThreadTest.java:83)
 at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
 at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
 at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
 at java.lang.reflect.Method.invoke(Method.java:585)
 at junit.framework.TestCase.runTest(TestCase.java:164)
 at junit.framework.TestCase.runBare(TestCase.java:130)
 at junit.framework.TestResult$1.protect(TestResult.java:106)
 at junit.framework.TestResult.runProtected(TestResult.java:124)
 at junit.framework.TestResult.run(TestResult.java:109)
 at junit.framework.TestCase.run(TestCase.java:120)
 at junit.framework.TestSuite.runTest(TestSuite.java:230)
 at junit.framework.TestSuite.run(TestSuite.java:225)
 at org.eclipse.jdt.internal.junit.runner.junit3.JUnit3TestReference.run(JUnit3TestReference.java:130)
 at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
 at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:460)
 at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:673)
 at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:386)
 at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:196)

更新 我在烟囱痕迹的内部做了更多的研究。工作版本(eclipse之外)返回com.sun.org.apache.xalan.internal.xsltc.trax的实例。TransformerFactoryImpl是javax.xml.transform中的回退impl类名。TransformerFactory.newInstance()

    public static TransformerFactory newInstance()
        throws TransformerFactoryConfigurationError {
        try {
            return (TransformerFactory) FactoryFinder.find(
            /* The default property name according to the JAXP spec */
            "javax.xml.transform.TransformerFactory",
            /* The fallback implementation class name, XSLTC */
            "com.sun.org.apache.xalan.internal.xsltc.trax.TransformerFactoryImpl");
        } catch (FactoryFinder.ConfigurationError e) {
            throw new TransformerFactoryConfigurationError(
                e.getException(),
                e.getMessage());
        }
    }