找不到适合抓取的类加载器 [英] No suitable classloader found for grab
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问题描述
@Grab(group ='org.ccil.cowan.tagsoup ',module ='tagsoup',version ='1.2')
class MyClass {...
<$ c $我试图单元测试这个类,但是每当我尝试运行JUnit 4测试时,由于java.lang.RuntimeException:没有合适的ClassLoader在sun.reflect.NativeConstructorAccessorImpl.newInstance0(本地方法)获取
。sun.reflect.NativeConstructorAccessorImpl.newInstance中的
(NativeConstructorAccessorImpl.java: 39)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)
at java.lang.reflect.Constructor.newInstance(Constructor.java:513)
at org.codehaus .groovy.reflection.CachedConstructor.invoke(CachedConstructor.java:77)
at org.codehaus.groovy.runtime.callsite.ConstructorSite $ ConstructorSiteNoUnwrapNoCoerce.callConstruct or(ConstructorSite.java:102)
org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCallConstructor(CallSiteArray.java:52)
at org.codehaus.groovy.runtime.callsite.AbstractCallSite。 callConstructor(AbstractCallSite.java:190)
at org.codehaus.groovy.runtime.callsite.AbstractCallSite.callConstructor(AbstractCallSite.java:198)
at groovy.grape.GrapeIvy.chooseClassLoader(GrapeIvy.groovy: 163)
at groovy.grape.GrapeIvy $ chooseClassLoader.callCurrent(Unknown Source)
at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCallCurrent(CallSiteArray.java:44)
at org.codehaus.groovy.runtime.callsite.AbstractCallSite.callCurrent(AbstractCallSite.java:141)
at org.codehaus.groovy.runtime.callsite.AbstractCallSite.callCurrent(AbstractCallSite.java:149)
at groovy.grape.GrapeIvy.grab(GrapeIvy.groovy:227)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessor Impl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at org.codehaus.groovy.runtime.callsite.PogoMetaMethodSite $ PogoCachedMethodSite.invoke( PogoMetaMethodSite.java:225)
at org.codehaus.groovy.runtime.callsite.PogoMetaMethodSite.callCurrent(PogoMetaMethodSite.java:51)
at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCallCurrent( CallSiteArray.java:44)
at org.codehaus.groovy.runtime.callsite.AbstractCallSite.callCurrent(AbstractCallSite.java:141)
at org.codehaus.groovy.runtime.callsite.AbstractCallSite.callCurrent(在Groovy.grape.GrapeIvy.grab(GrapeIvy.groovy:216)上
$ grovey.grape.Grape.grab(Grape.java:131)
在groovy
.grape.Grape $ grab.callStatic(Unknown Source)
org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCallStatic(CallSiteArray.java:48)
at org.codehaus.groo vy.runtime.callsite.AbstractCallSite.callStatic(AbstractCallSite.java:165)
位于org.codehaus.groovy.runtime.callsite.AbstractCallSite.callStatic(AbstractCallSite.java:173)$ am $ s $ am处的ammoscanner.AmmoScanner。 < clinit>(AmmoScanner.groovy)
... 30 more
任何想法?我使用的是groovy 1.7.5使用 @Grab
使得使用groovy 1.7.5
解决方案代码无法测试,至少在2011年1月26日。
I have this at the beginning of a class:
@Grab(group = 'org.ccil.cowan.tagsoup', module = 'tagsoup', version = '1.2')
class MyClass{...
I'm trying to unit test this class, but whenever I try to run JUnit 4 tests, I get this error:
Caused by: java.lang.RuntimeException: No suitable ClassLoader found for grab
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)
at java.lang.reflect.Constructor.newInstance(Constructor.java:513)
at org.codehaus.groovy.reflection.CachedConstructor.invoke(CachedConstructor.java:77)
at org.codehaus.groovy.runtime.callsite.ConstructorSite$ConstructorSiteNoUnwrapNoCoerce.callConstructor(ConstructorSite.java:102)
at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCallConstructor(CallSiteArray.java:52)
at org.codehaus.groovy.runtime.callsite.AbstractCallSite.callConstructor(AbstractCallSite.java:190)
at org.codehaus.groovy.runtime.callsite.AbstractCallSite.callConstructor(AbstractCallSite.java:198)
at groovy.grape.GrapeIvy.chooseClassLoader(GrapeIvy.groovy:163)
at groovy.grape.GrapeIvy$chooseClassLoader.callCurrent(Unknown Source)
at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCallCurrent(CallSiteArray.java:44)
at org.codehaus.groovy.runtime.callsite.AbstractCallSite.callCurrent(AbstractCallSite.java:141)
at org.codehaus.groovy.runtime.callsite.AbstractCallSite.callCurrent(AbstractCallSite.java:149)
at groovy.grape.GrapeIvy.grab(GrapeIvy.groovy:227)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at org.codehaus.groovy.runtime.callsite.PogoMetaMethodSite$PogoCachedMethodSite.invoke(PogoMetaMethodSite.java:225)
at org.codehaus.groovy.runtime.callsite.PogoMetaMethodSite.callCurrent(PogoMetaMethodSite.java:51)
at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCallCurrent(CallSiteArray.java:44)
at org.codehaus.groovy.runtime.callsite.AbstractCallSite.callCurrent(AbstractCallSite.java:141)
at org.codehaus.groovy.runtime.callsite.AbstractCallSite.callCurrent(AbstractCallSite.java:153)
at groovy.grape.GrapeIvy.grab(GrapeIvy.groovy:216)
at groovy.grape.Grape.grab(Grape.java:131)
at groovy.grape.Grape$grab.callStatic(Unknown Source)
at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCallStatic(CallSiteArray.java:48)
at org.codehaus.groovy.runtime.callsite.AbstractCallSite.callStatic(AbstractCallSite.java:165)
at org.codehaus.groovy.runtime.callsite.AbstractCallSite.callStatic(AbstractCallSite.java:173)
at ammoscanner.AmmoScanner.<clinit>(AmmoScanner.groovy)
... 30 more
Any ideas? I'm using groovy 1.7.5
解决方案
Using @Grab
makes code untestable, at least as of 01/26/2011.
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