我刚才出了这个异常:ClassCastException: $Proxy15解决了

最新推荐文章于 2024-07-23 21:00:06 发布

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最新推荐文章于 2024-07-23 21:00:06 发布

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文章标签： junit Eclipse Java SUN

本文链接：https://blog.youkuaiyun.com/huiqinbo/article/details/83532999

本文探讨了在Java单元测试中出现的ClassCastException异常原因及其解决办法。异常出现在实现特定接口后的setUpBeforeClass方法中，通过调整类的继承关系可以避免此问题。

java.lang.ClassCastException: $Proxy15
at com.czyd.unittest.ProductTypeTest.setUpBeforeClass(ProductTypeTest.java:20)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.junit.internal.runners.BeforeAndAfterRunner.invokeMethod(BeforeAndAfterRunner.java:74)
at org.junit.internal.runners.BeforeAndAfterRunner.runBefores(BeforeAndAfterRunner.java:50)
at org.junit.internal.runners.BeforeAndAfterRunner.runProtected(BeforeAndAfterRunner.java:33)
at org.junit.internal.runners.TestClassRunner.run(TestClassRunner.java:52)
at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:38)
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)
是因为本身我这个类是正常的类,后来实现了个接口,这成这样了,现在找出来,让它不继承也就好了