ELResolver cannot handle a null

gistfile1.java

Running org.dozer.functional_tests.VariablesTest
javax.el.PropertyNotFoundException: ELResolver cannot handle a null base Object with identifier 'container'
	at com.sun.el.lang.ELSupport.throwUnhandled(ELSupport.java:61)
	at com.sun.el.parser.AstIdentifier.getValue(AstIdentifier.java:101)
	at com.sun.el.ValueExpressionImpl.getValue(ValueExpressionImpl.java:219)
	at org.dozer.loader.xml.ELEngine.resolve(ELEngine.java:79)
	at org.dozer.loader.xml.ExpressionElementReader.getNodeValue(ExpressionElementReader.java:40)
	at org.dozer.loader.xml.XMLParser.getNodeValue(XMLParser.java:116)
	at org.dozer.loader.xml.XMLParser.parseMapping(XMLParser.java:194)
	at org.dozer.loader.xml.XMLParser.read(XMLParser.java:142)
	at org.dozer.loader.xml.XMLParser.read(XMLParser.java:44)
	at org.dozer.loader.xml.MappingStreamReader.read(MappingStreamReader.java:54)
	at org.dozer.loader.xml.MappingFileReader.read(MappingFileReader.java:60)
	at org.dozer.DozerBeanMapper.loadFromFiles(DozerBeanMapper.java:249)
	at org.dozer.DozerBeanMapper.loadCustomMappings(DozerBeanMapper.java:226)
	at org.dozer.DozerBeanMapper.initMappings(DozerBeanMapper.java:342)
	at org.dozer.DozerBeanMapper.getMappingProcessor(DozerBeanMapper.java:203)
	at org.dozer.DozerBeanMapper.map(DozerBeanMapper.java:117)
	at org.dozer.functional_tests.VariablesTest.testTest(VariablesTest.java:63)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:606)
	at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:47)
	at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
	at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:44)
	at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
	at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:26)
	at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:271)
	at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:70)
	at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:50)
	at org.junit.runners.ParentRunner$3.run(ParentRunner.java:238)
	at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:63)
	at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:236)
	at org.junit.runners.ParentRunner.access$000(ParentRunner.java:53)
	at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:229)
	at org.junit.runners.ParentRunner.run(ParentRunner.java:309)
	at org.apache.maven.surefire.junit4.JUnit4TestSet.execute(JUnit4TestSet.java:53)
	at org.apache.maven.surefire.junit4.JUnit4Provider.executeTestSet(JUnit4Provider.java:123)
	at org.apache.maven.surefire.junit4.JUnit4Provider.invoke(JUnit4Provider.java:104)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:606)
	at org.apache.maven.surefire.util.ReflectionUtils.invokeMethodWithArray(ReflectionUtils.java:164)
	at org.apache.maven.surefire.booter.ProviderFactory$ProviderProxy.invoke(ProviderFactory.java:110)
	at org.apache.maven.surefire.booter.SurefireStarter.invokeProvider(SurefireStarter.java:172)
	at org.apache.maven.surefire.booter.SurefireStarter.runSuitesInProcessWhenForked(SurefireStarter.java:104)
	at org.apache.maven.surefire.booter.ForkedBooter.main(ForkedBooter.java:70)