I am having trouble using Ignite on JDK 9. I have the following minimal testcase:
package no.ovstetun.ignite;
import org.apache.ignite.spi.discovery.tcp.TcpDiscoverySpi;
import org.junit.Test;
public class FailingIgniteTest {
#Test
public void failingIgnite() {
TcpDiscoverySpi discoverySpi = new TcpDiscoverySpi();
}
}
This code sample fails with the following stacktrace:
java.lang.ExceptionInInitializerError
at org.apache.ignite.internal.util.IgniteUtils.<clinit>(IgniteUtils.java:769)
at org.apache.ignite.spi.IgniteSpiAdapter.<init>(IgniteSpiAdapter.java:119)
at org.apache.ignite.spi.discovery.tcp.TcpDiscoverySpi.<init>(TcpDiscoverySpi.java:231)
at no.nrk.mdb.common.infrastructure.ignite.IgniteConfigurationTest.failingIgnite(IgniteConfigurationTest.java:10)
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.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50)
at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47)
at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:325)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:78)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:57)
at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290)
at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71)
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288)
at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58)
at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268)
at org.junit.runners.ParentRunner.run(ParentRunner.java:363)
at org.junit.runner.JUnitCore.run(JUnitCore.java:137)
at com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:68)
at com.intellij.rt.execution.junit.IdeaTestRunner$Repeater.startRunnerWithArgs(IdeaTestRunner.java:47)
at com.intellij.rt.execution.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:242)
at com.intellij.rt.execution.junit.JUnitStarter.main(JUnitStarter.java:70)
Caused by: java.lang.RuntimeException: jdk.internal.misc.JavaNioAccess class is unavailable.
at org.apache.ignite.internal.util.GridUnsafe.javaNioAccessObject(GridUnsafe.java:1453)
at org.apache.ignite.internal.util.GridUnsafe.<clinit>(GridUnsafe.java:112)
... 26 more
Caused by: java.lang.IllegalAccessException: class org.apache.ignite.internal.util.GridUnsafe cannot access class jdk.internal.misc.SharedSecrets (in module java.base) because module java.base does not export jdk.internal.misc to unnamed module #31ef45e3
at java.base/jdk.internal.reflect.Reflection.newIllegalAccessException(Reflection.java:361)
at java.base/java.lang.reflect.AccessibleObject.checkAccess(AccessibleObject.java:589)
at java.base/java.lang.reflect.Method.invoke(Method.java:556)
at org.apache.ignite.internal.util.GridUnsafe.javaNioAccessObject(GridUnsafe.java:1450)
... 27 more
I am trying to migrate my codebase beyond Java 8, and Ignite is now the only dependency holding me back. I have tried adding --add-module to my runner, but I can't seem to find what is needed to make Ignite work with JDK 9.
The same error is with Ignite versions 2.4.0 and 2.5.0.
Any help would be much appreciated!
Try adding the following parameters when launching Java:
--add-exports=java.base/jdk.internal.misc=ALL-UNNAMED
--add-exports=java.base/sun.nio.ch=ALL-UNNAMED
Related
I have a mockito junit's test using the command below. The variable serviceTask is an Interface's instancie called ServiceTask. I'm using a #Mock in the declarection
Declaraction:
#Mock
private ServiceTask
Command Line:
Mockito.when(serviceTask.getTask(Mockito.anyLong())).thenReturn(new Task());
Stack Trace:
java.lang.NullPointerException at
sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:90)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:55)
at java.lang.reflect.Method.invoke(Method.java:508) at
org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50)
at
org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
at
org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47)
at
org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
at
org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:26)
at
org.mockito.internal.runners.DefaultInternalRunner$1$1.evaluate(DefaultInternalRunner.java:54)
at
org.junit.rules.ExpectedException$ExpectedExceptionStatement.evaluate(ExpectedException.java:239)
at org.junit.rules.RunRules.evaluate(RunRules.java:20) at
org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:325) at
org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:78)
at
org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:57)
at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290) at
org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71) at
org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288) at
org.junit.runners.ParentRunner.access$000(ParentRunner.java:58) at
org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268) at
org.junit.runners.ParentRunner.run(ParentRunner.java:363) at
org.mockito.internal.runners.DefaultInternalRunner$1.run(DefaultInternalRunner.java:99)
at
org.mockito.internal.runners.DefaultInternalRunner.run(DefaultInternalRunner.java:105)
at
org.mockito.internal.runners.StrictRunner.run(StrictRunner.java:40)
at
org.mockito.junit.MockitoJUnitRunner.run(MockitoJUnitRunner.java:163)
at
org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:89)
at
org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:41)
at
org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:541)
at
org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:763)
at
org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:463)
at
org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:209)
The only reason for NPE if it happens at the line of code you mentioned above is serviceTask is null.
If you're not using the correct test runner which can help you to initialise the mock instance, then you can actually initialise them manually in your setUp method by using MockitoAnnotations.initMocks(this);
But if you already did so or used the correct test runner, then probably you linked to a wrong line of code. Try to debug yourself again.
Your stack trace doesn't look like it caused from your linked line of code.
I am using Java + Spring boot(Ver 2.1.16) + Hibernate + JPA for an API project.
I have several models with several OneToMany relationships.
I haven't mentioned a fetch type but as I know it's Eager in default according to my used Hibernate version.
I have mentioned #Transactional in my service method also.
All good when I get data calling to the API endpoint via Postman (I receive all fields including OneToMany) without any exception.
But when I call the service method via Unit tests, I get following exception.
org.hibernate.LazyInitializationException: failed to lazily initialize a collection of role: com.ccc.common.model.InstantiatedVnfInfo.vnfcInfo, could not initialize proxy - no Session
at org.hibernate.collection.internal.AbstractPersistentCollection.throwLazyInitializationException(AbstractPersistentCollection.java:602)
at org.hibernate.collection.internal.AbstractPersistentCollection.withTemporarySessionIfNeeded(AbstractPersistentCollection.java:217)
at org.hibernate.collection.internal.AbstractPersistentCollection.initialize(AbstractPersistentCollection.java:581)
at org.hibernate.collection.internal.AbstractPersistentCollection.read(AbstractPersistentCollection.java:148)
at org.hibernate.collection.internal.PersistentBag.toString(PersistentBag.java:624)
at java.base/java.lang.String.valueOf(String.java:3367)
at java.base/java.lang.StringBuilder.append(StringBuilder.java:167)
at org.junit.Assert.failNotNull(Assert.java:755)
at org.junit.Assert.assertNull(Assert.java:737)
at org.junit.Assert.assertNull(Assert.java:747)
at hms.vnfm.lcm.service.VnfInstancesServiceTest.testCreateVnfInstanceWithNullFields(VnfInstancesServiceTest.java:75)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:64)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:564)
at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50)
at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47)
at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
at org.springframework.test.context.junit4.statements.RunBeforeTestExecutionCallbacks.evaluate(RunBeforeTestExecutionCallbacks.java:74)
at org.springframework.test.context.junit4.statements.RunAfterTestExecutionCallbacks.evaluate(RunAfterTestExecutionCallbacks.java:84)
at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:26)
at org.springframework.test.context.junit4.statements.RunBeforeTestMethodCallbacks.evaluate(RunBeforeTestMethodCallbacks.java:75)
at org.springframework.test.context.junit4.statements.RunAfterTestMethodCallbacks.evaluate(RunAfterTestMethodCallbacks.java:86)
at org.springframework.test.context.junit4.statements.SpringRepeat.evaluate(SpringRepeat.java:84)
at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:325)
at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:251)
at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:97)
at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290)
at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71)
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288)
at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58)
at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268)
at org.springframework.test.context.junit4.statements.RunBeforeTestClassCallbacks.evaluate(RunBeforeTestClassCallbacks.java:61)
at org.springframework.test.context.junit4.statements.RunAfterTestClassCallbacks.evaluate(RunAfterTestClassCallbacks.java:70)
at org.junit.runners.ParentRunner.run(ParentRunner.java:363)
at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.run(SpringJUnit4ClassRunner.java:190)
at org.junit.runner.JUnitCore.run(JUnitCore.java:137)
at com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:69)
at com.intellij.rt.junit.IdeaTestRunner$Repeater.startRunnerWithArgs(IdeaTestRunner.java:33)
at com.intellij.rt.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:220)
at com.intellij.rt.junit.JUnitStarter.main(JUnitStarter.java:53)
What can be the issue?
When you call the rest API using postman, it works because Spring Boot offers a feature called OpenSessionInViewFilter which open a hibernate session for the current session of your HTTP request. When you call the service method directly by the test method without being annotated by #Transactional, the lazy fetching does not work because there is no hibernate session opened.
I could resolve the issue after adding
#Transactional
to my Test methods also
I need DI library to my android library project - library, so I do not need things like injecting Activities/Fragments views etc. So such Dagger2 does not fit my needs. There are no nice ways to inject objects to my POJO classes.
I consider Google Guice but I get exceptions in my android project. Otherwise in pure Java project the same code is running well.
I have such code (at this line app crashes):
Injector injector = Guice.createInjector(new MyInjector());
MyInjector:
public class MyInjector extends AbstractModule {
#Override
protected void configure() {
bind(FooInterface.class).to(FooImplementation.class);
}
}
Gradle:
implementation group: 'com.google.inject', name: 'guice', version: '4.0'
And have so long stacktrace:
com.google.common.util.concurrent.ExecutionError: java.lang.ExceptionInInitializerError
at com.google.common.cache.LocalCache$Segment.get(LocalCache.java:2199)
at com.google.common.cache.LocalCache.get(LocalCache.java:3934)
at com.google.common.cache.LocalCache.getOrLoad(LocalCache.java:3938)
at com.google.common.cache.LocalCache$LocalLoadingCache.get(LocalCache.java:4821)
at com.google.common.cache.LocalCache$LocalLoadingCache.getUnchecked(LocalCache.java:4827)
at com.google.inject.internal.FailableCache.get(FailableCache.java:48)
at com.google.inject.internal.ConstructorInjectorStore.get(ConstructorInjectorStore.java:50)
at com.google.inject.internal.ConstructorBindingImpl.initialize(ConstructorBindingImpl.java:136)
at com.google.inject.internal.InjectorImpl.initializeJitBinding(InjectorImpl.java:547)
at com.google.inject.internal.InjectorImpl.createJustInTimeBinding(InjectorImpl.java:884)
at com.google.inject.internal.InjectorImpl.createJustInTimeBindingRecursive(InjectorImpl.java:805)
at com.google.inject.internal.InjectorImpl.getJustInTimeBinding(InjectorImpl.java:282)
at com.google.inject.internal.InjectorImpl.getBindingOrThrow(InjectorImpl.java:214)
at com.google.inject.internal.InjectorImpl.getInternalFactory(InjectorImpl.java:890)
at com.google.inject.internal.FactoryProxy.notify(FactoryProxy.java:46)
at com.google.inject.internal.ProcessedBindingData.runCreationListeners(ProcessedBindingData.java:50)
at com.google.inject.internal.InternalInjectorCreator.initializeStatically(InternalInjectorCreator.java:134)
at com.google.inject.internal.InternalInjectorCreator.build(InternalInjectorCreator.java:107)
at com.google.inject.Guice.createInjector(Guice.java:96)
at com.google.inject.Guice.createInjector(Guice.java:73)
at com.google.inject.Guice.createInjector(Guice.java:62)
at com.example.diresearch.services.ServiceManager.<init>(ServiceManager.java:26)
at com.example.diresearch.Plugin.init(Plugin.java:19)
at com.example.diresearch.PluginBuilder.build(PluginBuilder.java:32)
at com.example.diresearch.ExampleInstrumentedTest.buildPluginInstance(ExampleInstrumentedTest.java:21)
at java.lang.reflect.Method.invoke(Native Method)
at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50)
at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47)
at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:325)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:78)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:57)
at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290)
at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71)
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288)
at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58)
at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268)
at org.junit.runners.ParentRunner.run(ParentRunner.java:363)
at android.support.test.runner.AndroidJUnit4.run(AndroidJUnit4.java:101)
at org.junit.runners.Suite.runChild(Suite.java:128)
at org.junit.runners.Suite.runChild(Suite.java:27)
at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290)
at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71)
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288)
at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58)
at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268)
at org.junit.runners.ParentRunner.run(ParentRunner.java:363)
at org.junit.runner.JUnitCore.run(JUnitCore.java:137)
at org.junit.runner.JUnitCore.run(JUnitCore.java:115)
at android.support.test.internal.runner.TestExecutor.execute(TestExecutor.java:56)
at android.support.test.runner.AndroidJUnitRunner.onStart(AndroidJUnitRunner.java:384)
at android.app.Instrumentation$InstrumentationThread.run(Instrumentation.java:1939)
Caused by: java.lang.ExceptionInInitializerError
at com.google.inject.internal.cglib.core.$MethodWrapper.create(MethodWrapper.java:34)
at com.google.inject.internal.cglib.core.$DuplicatesPredicate.evaluate(DuplicatesPredicate.java:25)
at com.google.inject.internal.cglib.core.$CollectionUtils.filter(CollectionUtils.java:52)
at com.google.inject.internal.cglib.reflect.$FastClassEmitter.<init>(FastClassEmitter.java:69)
at com.google.inject.internal.cglib.reflect.$FastClass$Generator.generateClass(FastClass.java:72)
at com.google.inject.internal.cglib.core.$DefaultGeneratorStrategy.generate(DefaultGeneratorStrategy.java:25)
at com.google.inject.internal.cglib.core.$AbstractClassGenerator.create(AbstractClassGenerator.java:216)
at com.google.inject.internal.cglib.reflect.$FastClass$Generator.create(FastClass.java:64)
at com.google.inject.internal.BytecodeGen.newFastClass(BytecodeGen.java:204)
at com.google.inject.internal.DefaultConstructionProxyFactory.create(DefaultConstructionProxyFactory.java:54)
at com.google.inject.internal.ProxyFactory.create(ProxyFactory.java:159)
at com.google.inject.internal.ConstructorInjectorStore.createConstructor(ConstructorInjectorStore.java:90)
at com.google.inject.internal.ConstructorInjectorStore.access$000(ConstructorInjectorStore.java:29)
at com.google.inject.internal.ConstructorInjectorStore$1.create(ConstructorInjectorStore.java:37)
at com.google.inject.internal.ConstructorInjectorStore$1.create(ConstructorInjectorStore.java:33)
at com.google.inject.internal.FailableCache$1.load(FailableCache.java:37)
at com.google.common.cache.LocalCache$LoadingValueReference.loadFuture(LocalCache.java:3524)
at com.google.common.cache.LocalCache$Segment.loadSync(LocalCache.java:2317)
at com.google.common.cache.LocalCache$Segment.lockedGetOrLoad(LocalCache.java:2280)
at com.google.common.cache.LocalCache$Segment.get(LocalCache.java:2195)
... 52 more
Caused by: com.google.inject.internal.cglib.core.$CodeGenerationException: java.lang.reflect.InvocationTargetException-->null
at com.google.inject.internal.cglib.core.$AbstractClassGenerator.create(AbstractClassGenerator.java:237)
at com.google.inject.internal.cglib.core.$KeyFactory$Generator.create(KeyFactory.java:144)
at com.google.inject.internal.cglib.core.$KeyFactory.create(KeyFactory.java:116)
at com.google.inject.internal.cglib.core.$KeyFactory.create(KeyFactory.java:108)
at com.google.inject.internal.cglib.core.$KeyFactory.create(KeyFactory.java:104)
at com.google.inject.internal.cglib.core.$MethodWrapper.<clinit>(MethodWrapper.java:22)
... 72 more
Caused by: java.lang.reflect.InvocationTargetException
at java.lang.reflect.Method.invoke(Native Method)
at com.google.inject.internal.cglib.core.$ReflectUtils.defineClass(ReflectUtils.java:384)
at com.google.inject.internal.cglib.core.$AbstractClassGenerator.create(AbstractClassGenerator.java:219)
... 77 more
Caused by: java.lang.UnsupportedOperationException: can't load this type of class file
at java.lang.ClassLoader.defineClass(ClassLoader.java:594)
... 80 more
Why this code doesn't work?
import org.junit.*;
import org.openqa.selenium.WebDriver;
import org.openqa.selenium.firefox.FirefoxDriver;
public class MainTest {
private WebDriver wd;
private String urll;
#Before
public void openGoogle()
{
wd = new FirefoxDriver();
urll = "https://google.com";
}
#Test
public void firstTest()
{
wd.get(urll);
}
#After
public void closeBrow()
{
wd.quit();
}
}
Error stack trace :
java.lang.NoClassDefFoundError: com/google/common/base/Function
at MainTest.openGoogle(MainTest.java:15)
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.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50)
at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47)
at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:24)
at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:27)
at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:325)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:78)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:57)
at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290)
at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71)
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288)
at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58)
at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268)
at org.junit.runners.ParentRunner.run(ParentRunner.java:363)
at org.junit.runner.JUnitCore.run(JUnitCore.java:137)
at com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:68)
at com.intellij.rt.execution.junit.IdeaTestRunner$Repeater.startRunnerWithArgs(IdeaTestRunner.java:47)
at com.intellij.rt.execution.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:242)
at com.intellij.rt.execution.junit.JUnitStarter.main(JUnitStarter.java:70)
Caused by: java.lang.ClassNotFoundException: com.google.common.base.Function
at java.base/jdk.internal.loader.BuiltinClassLoader.loadClass(BuiltinClassLoader.java:582)
at java.base/jdk.internal.loader.ClassLoaders$AppClassLoader.loadClass(ClassLoaders.java:185)
at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:496)
... 24 more
java.lang.NullPointerException
at MainTest.closeBrow(MainTest.java:28)
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.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50)
at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47)
at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:33)
at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:325)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:78)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:57)
at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290)
at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71)
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288)
at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58)
at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268)
at org.junit.runners.ParentRunner.run(ParentRunner.java:363)
at org.junit.runner.JUnitCore.run(JUnitCore.java:137)
at com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:68)
at com.intellij.rt.execution.junit.IdeaTestRunner$Repeater.startRunnerWithArgs(IdeaTestRunner.java:47)
at com.intellij.rt.execution.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:242)
at com.intellij.rt.execution.junit.JUnitStarter.main(JUnitStarter.java:70)
The error says it all :
java.lang.NoClassDefFoundError: com/google/common/base/Function
at MainTest.openGoogle(MainTest.java:15)
While working with Selenium v3.x you have to download geckodriver.exe from mozilla/geckodriver and place it in your system. Next you have to set the system property through the line System.setProperty() as follows and provide the absolute path of the GeckoDriver binary within your system as follows :
#Before
public void openGoogle()
{
System.setProperty("webdriver.gecko.driver", "C:\\path\\to\\geckodriver.exe");
wd = new FirefoxDriver();
urll = "https://google.com";
}
Finally Instead of mentioning import org.junit.*; as per best practices mention the distinct exports as follows :
import org.junit.Before;
import org.junit.Test;
import org.junit.After;
Here you can find a detailed discussion on NoClassDefFoundError
I´m using this library (https://github.com/scala/scala-java8-compat) to transform a Scala Future to Java 8 CompletableFuture.
But running this example:
package utils;
import akka.dispatch.Futures;
import org.junit.Test;
import scala.concurrent.Future;
import java.util.concurrent.CompletableFuture;
import scala.compat.java8.FutureConverters;
import scala.concurrent.Promise;
public class ScalaFuture {
#Test
public void test() throws InterruptedException {
Promise promise = Futures.promise();
Future scalaFuture = promise.future();
CompletableFuture cf = FutureConverters.toJava(scalaFuture).toCompletableFuture();
cf.whenComplete((result, t) -> {
System.out.println(result);
});
promise.success("works");
Thread.sleep(1000);
}
I have this error
java.lang.NoClassDefFoundError: scala/Function1$class
at scala.concurrent.java8.FuturesConvertersImpl$CF.<init>(FutureConvertersImpl.scala:18)
at scala.compat.java8.FutureConverters$.toJava(FutureConverters.scala:60)
at scala.compat.java8.FutureConverters.toJava(FutureConverters.scala)
at utils.ScalaFuture.test(ScalaFuture.java:19)
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.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50)
at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47)
at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:325)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:78)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:57)
at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290)
at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71)
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288)
at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58)
at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268)
at org.junit.runners.ParentRunner.run(ParentRunner.java:363)
at org.junit.runner.JUnitCore.run(JUnitCore.java:137)
at com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:68)
at com.intellij.rt.execution.junit.IdeaTestRunner$Repeater.startRunnerWithArgs(IdeaTestRunner.java:47)
at com.intellij.rt.execution.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:242)
at com.intellij.rt.execution.junit.JUnitStarter.main(JUnitStarter.java:70)
Caused by: java.lang.ClassNotFoundException: scala.Function1$class
at java.base/jdk.internal.loader.BuiltinClassLoader.loadClass(BuiltinClassLoader.java:582)
at java.base/jdk.internal.loader.ClassLoaders$AppClassLoader.loadClass(ClassLoaders.java:185)
at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:496)
... 26 more
Any idea what's wrong with my code?