java - 无法加载 sun.util.resources.cldr.provider.CLDRLocaleDataMetaInfo
问题描述
在我的一项测试中,我开始遇到一个相当神秘的错误。Surefire报告如下:
-------------------------------------------------------------------------------
Test set: de.systel.streckenmatching.GeoCoordinateTest
-------------------------------------------------------------------------------
Tests run: 1, Failures: 0, Errors: 1, Skipped: 0, Time elapsed: 0.129 sec <<< FAILURE!
de.systel.streckenmatching.GeoCoordinateTest Time elapsed: 0.128 sec <<< ERROR!
java.util.ServiceConfigurationError: sun.util.locale.provider.LocaleDataMetaInfo: Unable to load sun.util.resources.cldr.provider.CLDRLocaleDataMetaInfo
at java.base/java.util.ServiceLoader.fail(ServiceLoader.java:584)
at java.base/java.util.ServiceLoader.loadProvider(ServiceLoader.java:856)
at java.base/java.util.ServiceLoader$ModuleServicesLookupIterator.hasNext(ServiceLoader.java:1078)
at java.base/java.util.ServiceLoader$2.hasNext(ServiceLoader.java:1301)
at java.base/java.util.ServiceLoader$3.hasNext(ServiceLoader.java:1386)
at java.base/sun.util.cldr.CLDRLocaleProviderAdapter$1.run(CLDRLocaleProviderAdapter.java:89)
at java.base/sun.util.cldr.CLDRLocaleProviderAdapter$1.run(CLDRLocaleProviderAdapter.java:86)
at java.base/java.security.AccessController.doPrivileged(AccessController.java:554)
at java.base/sun.util.cldr.CLDRLocaleProviderAdapter.<init>(CLDRLocaleProviderAdapter.java:86)
at java.base/jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at java.base/jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
at java.base/jdk.internal.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
at java.base/java.lang.reflect.Constructor.newInstanceWithCaller(Constructor.java:500)
at java.base/java.lang.reflect.ReflectAccess.newInstance(ReflectAccess.java:124)
at java.base/jdk.internal.reflect.ReflectionFactory.newInstance(ReflectionFactory.java:346)
at java.base/java.lang.Class.newInstance(Class.java:604)
at java.base/sun.util.locale.provider.LocaleProviderAdapter.forType(LocaleProviderAdapter.java:176)
at java.base/sun.util.locale.provider.LocaleProviderAdapter.findAdapter(LocaleProviderAdapter.java:279)
at java.base/sun.util.locale.provider.LocaleProviderAdapter.getAdapter(LocaleProviderAdapter.java:250)
at java.base/java.text.DecimalFormatSymbols.getInstance(DecimalFormatSymbols.java:180)
at java.base/java.util.Formatter.getZero(Formatter.java:2437)
at java.base/java.util.Formatter.<init>(Formatter.java:1956)
at java.base/java.util.Formatter.<init>(Formatter.java:1978)
at java.base/java.lang.String.format(String.java:3302)
at org.junit.runner.Description.formatDisplayName(Description.java:114)
at org.junit.runner.Description.createTestDescription(Description.java:86)
at org.junit.runners.BlockJUnit4ClassRunner.describeChild(BlockJUnit4ClassRunner.java:96)
at org.junit.runners.BlockJUnit4ClassRunner.describeChild(BlockJUnit4ClassRunner.java:57)
at org.junit.runners.ParentRunner.getDescription(ParentRunner.java:352)
at org.junit.runners.ParentRunner.run(ParentRunner.java:359)
at org.apache.maven.surefire.junit4.JUnit4Provider.execute(JUnit4Provider.java:252)
at org.apache.maven.surefire.junit4.JUnit4Provider.executeTestSet(JUnit4Provider.java:141)
at org.apache.maven.surefire.junit4.JUnit4Provider.invoke(JUnit4Provider.java:112)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:564)
at org.apache.maven.surefire.util.ReflectionUtils.invokeMethodWithArray(ReflectionUtils.java:189)
at org.apache.maven.surefire.booter.ProviderFactory$ProviderProxy.invoke(ProviderFactory.java:165)
at org.apache.maven.surefire.booter.ProviderFactory.invokeProvider(ProviderFactory.java:85)
at org.apache.maven.surefire.booter.ForkedBooter.runSuitesInProcess(ForkedBooter.java:115)
at org.apache.maven.surefire.booter.ForkedBooter.main(ForkedBooter.java:75)
Caused by: java.lang.LinkageError: loader 'platform' attempted duplicate class definition for sun.util.resources.cldr.provider.CLDRLocaleDataMetaInfo. (sun.util.resources.cldr.provider.CLDRLocaleDataMetaInfo is in module jdk.localedata of loader 'platform')
at java.base/java.lang.ClassLoader.defineClass2(Native Method)
at java.base/java.lang.ClassLoader.defineClass(ClassLoader.java:1109)
at java.base/java.security.SecureClassLoader.defineClass(SecureClassLoader.java:183)
at java.base/jdk.internal.loader.BuiltinClassLoader.defineClass(BuiltinClassLoader.java:780)
at java.base/jdk.internal.loader.BuiltinClassLoader.findClassInModuleOrNull(BuiltinClassLoader.java:701)
at java.base/jdk.internal.loader.BuiltinClassLoader.findClass(BuiltinClassLoader.java:582)
at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:634)
at java.base/java.lang.Class.forName(Class.java:505)
at java.base/java.util.ServiceLoader.loadProvider(ServiceLoader.java:854)
... 40 more
Caused by: java.lang.LinkageError: loader 'platform' attempted duplicate class definition for sun.util.resources.cldr.provider.CLDRLocaleDataMetaInfo. (sun.util.resources.cldr.provider.CLDRLocaleDataMetaInfo is in module jdk.localedata of loader 'platform')
at java.base/java.lang.ClassLoader.defineClass2(Native Method)
at java.base/java.lang.ClassLoader.defineClass(ClassLoader.java:1109)
at java.base/java.security.SecureClassLoader.defineClass(SecureClassLoader.java:183)
at java.base/jdk.internal.loader.BuiltinClassLoader.defineClass(BuiltinClassLoader.java:780)
at java.base/jdk.internal.loader.BuiltinClassLoader.findClassInModuleOrNull(BuiltinClassLoader.java:701)
at java.base/jdk.internal.loader.BuiltinClassLoader.findClass(BuiltinClassLoader.java:582)
at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:634)
at java.base/java.lang.Class.forName(Class.java:505)
at java.base/java.util.ServiceLoader.loadProvider(ServiceLoader.java:854)
... 40 more
测试本身绝对没有什么特别之处,只是验证equals
了一些 POJO 类:
public class GeoCoordinateTest {
@Test
public void test() {
GeoCoordinate coord1 = new GeoCoordinate();
coord1.setLatitude(5.0);
coord1.setLongitude(10.0);
GeoCoordinate coord2 = new GeoCoordinate();
coord2.setLatitude(5.0);
coord2.setLongitude(10.0);
GeoCoordinate coord3 = new GeoCoordinate();
coord3.setLatitude(5.1);
coord3.setLongitude(10.0);
assertEquals(coord1, coord2);
assertNotEquals(coord1, coord3);
}
}
它发生在 OpenJDK 14 下:
...>java -version
openjdk version "14.0.1" 2020-04-14
OpenJDK Runtime Environment (build 14.0.1+7)
OpenJDK 64-Bit Server VM (build 14.0.1+7, mixed mode, sharing)
我很困惑。发生了什么,我该如何解决?
解决方案
我在使用 JetBrains 的 IDE Intellij IDEA 运行测试时从 Java 8 升级到 Java 11 时发生了这种情况。
在我的案例中发生的事情是 Project SDK 与'platform'
.
在我的例子中,平台是 Gradle 的 JVM。如果有人遇到这种情况,请知道您可以Build Tool
通过转到Preferences
> Build, Execution, Deployment
>来设置匹配项目 SDK Build Tools
。在这里,您可以选择Gradle
或问题Maven
等。
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