Question

我的Java代码如下所示：

Person.java

public class Person {
private int age;

public Person(int age) {
    this.age = age;
}

public boolean isAdult() {
    return age >= 18;
}

@Override
public String toString() {
    return "Person of age: " + age;
}

}

PersonTest.java

import static org.hamcrest.Matchers.is;
import static org.junit.Assert.assertThat;

import org.junit.Test;
import org.junit.runner.RunWith;

import junitparams.JUnitParamsRunner;
import junitparams.Parameters;

@RunWith(JUnitParamsRunner.class)
public class PersonTest {

    @Test
    @Parameters({ 
        "17, false", 
        "22, true" })
    public void personIsAdult(int age, boolean valid) throws Exception {
        assertThat(new Person(age).isAdult(), is(valid));
}
}

如果我按“Run As”=＆gt; “JUnit测试用例”我得到“java.lang.TypeNotPresentException：Type [unknown] not present”。这里是完整的堆栈跟踪：

 java.lang.TypeNotPresentException: Type [unknown] not present
    at sun.reflect.annotation.TypeNotPresentExceptionProxy.generateException(TypeNotPresentExceptionProxy.java:46)
    at sun.reflect.annotation.AnnotationInvocationHandler.invoke(AnnotationInvocationHandler.java:84)
    at com.sun.proxy.$Proxy2.value(Unknown Source)
    at org.junit.internal.builders.AnnotatedBuilder.runnerForClass(AnnotatedBuilder.java:86)
    at org.junit.runners.model.RunnerBuilder.safeRunnerForClass(RunnerBuilder.java:59)
    at org.junit.internal.builders.AllDefaultPossibilitiesBuilder.runnerForClass(AllDefaultPossibilitiesBuilder.java:26)
    at org.junit.runners.model.RunnerBuilder.safeRunnerForClass(RunnerBuilder.java:59)
    at org.junit.internal.requests.ClassRequest.getRunner(ClassRequest.java:33)
    at org.eclipse.jdt.internal.junit4.runner.JUnit4TestLoader.createUnfilteredTest(JUnit4TestLoader.java:84)
    at org.eclipse.jdt.internal.junit4.runner.JUnit4TestLoader.createTest(JUnit4TestLoader.java:70)
    at org.eclipse.jdt.internal.junit4.runner.JUnit4TestLoader.loadTests(JUnit4TestLoader.java:43)
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:444)
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:678)
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:382)
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:192)
Caused by: java.lang.NoClassDefFoundError: org/junit/runners/BlockJUnit4ClassRunner
    at java.lang.ClassLoader.findBootstrapClass(Native Method)
    at java.lang.ClassLoader.findBootstrapClassOrNull(ClassLoader.java:1015)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:413)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:411)
    at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:331)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
    at java.lang.Class.forName0(Native Method)
    at java.lang.Class.forName(Class.java:348)
    at sun.reflect.generics.factory.CoreReflectionFactory.makeNamedType(CoreReflectionFactory.java:114)
    at sun.reflect.generics.visitor.Reifier.visitClassTypeSignature(Reifier.java:125)
    at sun.reflect.generics.tree.ClassTypeSignature.accept(ClassTypeSignature.java:49)
    at sun.reflect.annotation.AnnotationParser.parseSig(AnnotationParser.java:439)
    at sun.reflect.annotation.AnnotationParser.parseClassValue(AnnotationParser.java:420)
    at sun.reflect.annotation.AnnotationParser.parseMemberValue(AnnotationParser.java:349)
    at sun.reflect.annotation.AnnotationParser.parseAnnotation2(AnnotationParser.java:286)
    at sun.reflect.annotation.AnnotationParser.parseAnnotations2(AnnotationParser.java:120)
    at sun.reflect.annotation.AnnotationParser.parseAnnotations(AnnotationParser.java:72)
    at java.lang.Class.createAnnotationData(Class.java:3521)
    at java.lang.Class.annotationData(Class.java:3510)
    at java.lang.Class.getAnnotation(Class.java:3415)
    at org.junit.internal.builders.IgnoredBuilder.runnerForClass(IgnoredBuilder.java:10)
    ... 11 more

JUnit-Version是4.12

Hamcrest-all版本是1.3

Hamcrest-core版本为1.3

有人有建议如何解决这个问题吗？提前谢谢。

Answer 1

我现在能够使用此论坛解决我自己的问题：https://jira.spring.io/browse/SPR-9450

我使用库作为用户库，但显然这是错误的。当我在我的类路径中将它用作外部jar时，一切正常。

使用JUnitParamsRunner的TypeNotPresentException

1 个答案: