| NoClassDefFoundError for INameEnvironment [message #1719325] |
Thu, 07 January 2016 04:14  |
Eclipse User |
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I have encountered a NoClasDefFound error for org.eclipse.jdt.internal.compiler.env.INameEnviroment when trying to test compilation in an XBase project. Interestingly, when the error prints, it uses forward slashes, not periods in the qualified class name. Not sure if that has something to do with the issue.
I can replicate it with the "default" hello world project which is set up with a new XText project.
Here, all I've done is extended Xbase in my grammar:
grammar org.xtext.example.mydsl.MyDsl with org.eclipse.xtext.xbase.Xbase
and instated the simple example jvmModelInferrer that comes commented out:
def dispatch void infer(Model element, IJvmDeclaredTypeAcceptor acceptor, boolean isPreIndexingPhase) {
// Here you explain how your model is mapped to Java elements, by writing the actual translation code.
// An implementation for the initial hello world example could look like this:
acceptor.accept(element.toClass("my.company.greeting.MyGreetings")) [
for (greeting : element.greetings) {
members += greeting.toMethod("hello" + greeting.name, typeRef(String)) [
body = '''
return "Hello «greeting.name»";
'''
]
}
]
}
I then implemented this shell of a compiler test:
@RunWith(XtextRunner)
@InjectWith(MyDslInjectorProvider)
class MyDslCompilerTest {
@Inject public TemporaryFolder temporaryFolder
@Inject extension CompilationTestHelper
@Test
def void testBasicCompilation() {
'''
Hello Xtext!
'''.compile []
}
}
When I run this test, I get the following error. Thanks for any guidance!
com.google.inject.ProvisionException: Guice provision errors:
1) Error injecting constructor, java.lang.NoClassDefFoundError: org/eclipse/jdt/internal/compiler/env/INameEnvironment
at org.eclipse.xtext.xbase.compiler.OnTheFlyJavaCompiler2.<init>(Unknown Source)
at org.eclipse.xtext.xbase.compiler.OnTheFlyJavaCompiler2.class(Unknown Source)
while locating org.eclipse.xtext.xbase.compiler.OnTheFlyJavaCompiler2
for field at org.eclipse.xtext.xbase.compiler.CompilationTestHelper.javaCompiler(Unknown Source)
while locating org.eclipse.xtext.xbase.compiler.CompilationTestHelper
for field at org.xtext.example.mydsl.tests.MyDslCompilerTest._compilationTestHelper(Unknown Source)
while locating org.xtext.example.mydsl.tests.MyDslCompilerTest
1 error
at com.google.inject.internal.Errors.throwProvisionExceptionIfErrorsExist(Errors.java:451)
at com.google.inject.internal.MembersInjectorImpl.injectMembers(MembersInjectorImpl.java:65)
at com.google.inject.internal.InjectorImpl.injectMembers(InjectorImpl.java:944)
at org.eclipse.xtext.junit4.XtextRunner.createTest(XtextRunner.java:33)
at org.junit.runners.BlockJUnit4ClassRunner$1.runReflectiveCall(BlockJUnit4ClassRunner.java:266)
at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
at org.junit.runners.BlockJUnit4ClassRunner.methodBlock(BlockJUnit4ClassRunner.java:263)
at org.eclipse.xtext.junit4.XtextRunner.superMethodBlock(XtextRunner.java:64)
at org.eclipse.xtext.junit4.XtextRunner.methodBlock(XtextRunner.java:44)
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.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:86)
at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:459)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:675)
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/eclipse/jdt/internal/compiler/env/INameEnvironment
at org.eclipse.xtext.xbase.compiler.OnTheFlyJavaCompiler2.<init>(OnTheFlyJavaCompiler2.java:40)
at org.eclipse.xtext.xbase.compiler.OnTheFlyJavaCompiler2.<init>(OnTheFlyJavaCompiler2.java:36)
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
at java.lang.reflect.Constructor.newInstance(Constructor.java:422)
at com.google.inject.internal.DefaultConstructionProxyFactory$1.newInstance(DefaultConstructionProxyFactory.java:85)
at com.google.inject.internal.ConstructorInjector.construct(ConstructorInjector.java:85)
at com.google.inject.internal.ConstructorBindingImpl$Factory.get(ConstructorBindingImpl.java:254)
at com.google.inject.internal.ProviderToInternalFactoryAdapter$1.call(ProviderToInternalFactoryAdapter.java:46)
at com.google.inject.internal.InjectorImpl.callInContext(InjectorImpl.java:1031)
at com.google.inject.internal.ProviderToInternalFactoryAdapter.get(ProviderToInternalFactoryAdapter.java:40)
at com.google.inject.Scopes$1$1.get(Scopes.java:65)
at com.google.inject.internal.InternalFactoryToProviderAdapter.get(InternalFactoryToProviderAdapter.java:40)
at com.google.inject.internal.SingleFieldInjector.inject(SingleFieldInjector.java:53)
at com.google.inject.internal.MembersInjectorImpl.injectMembers(MembersInjectorImpl.java:110)
at com.google.inject.internal.ConstructorInjector.construct(ConstructorInjector.java:94)
at com.google.inject.internal.ConstructorBindingImpl$Factory.get(ConstructorBindingImpl.java:254)
at com.google.inject.internal.SingleFieldInjector.inject(SingleFieldInjector.java:53)
at com.google.inject.internal.MembersInjectorImpl.injectMembers(MembersInjectorImpl.java:110)
at com.google.inject.internal.MembersInjectorImpl$1.call(MembersInjectorImpl.java:75)
at com.google.inject.internal.MembersInjectorImpl$1.call(MembersInjectorImpl.java:73)
at com.google.inject.internal.InjectorImpl.callInContext(InjectorImpl.java:1024)
at com.google.inject.internal.MembersInjectorImpl.injectAndNotify(MembersInjectorImpl.java:73)
at com.google.inject.internal.MembersInjectorImpl.injectMembers(MembersInjectorImpl.java:60)
... 21 more
Caused by: java.lang.ClassNotFoundException: org.eclipse.jdt.internal.compiler.env.INameEnvironment
at java.net.URLClassLoader.findClass(URLClassLoader.java:381)
at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:331)
at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
... 46 more
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