java.lang.AbstractMethodError: org.slf4j.impl.JDK14LoggerAdapter.log(Lorg/slf4j/Marker;Ljava/lang/St

java.lang.AbstractMethodError: org.slf4j.impl.JDK14LoggerAdapter.log(Lorg/slf4j/Marker;Ljava/lang/String;ILjava/lang/String;[Ljava/lang/Object;Ljava/lang/Throwable;)V
at org.apache.commons.logging.impl.SLF4JLocationAwareLog.debug(SLF4JLocationAwareLog.java:133)
at org.springframework.core.env.MutablePropertySources.addLast(MutablePropertySources.java:103)
at org.springframework.core.env.StandardEnvironment.customizePropertySources(StandardEnvironment.java:78)
at org.springframework.core.env.AbstractEnvironment.<init>(AbstractEnvironment.java:117)
at org.springframework.core.env.StandardEnvironment.<init>(StandardEnvironment.java:54)
at org.springframework.context.support.AbstractApplicationContext.createEnvironment(AbstractApplicationContext.java:427)
at org.springframework.context.support.AbstractApplicationContext.<init>(AbstractApplicationContext.java:227)
at org.springframework.context.support.AbstractApplicationContext.<init>(AbstractApplicationContext.java:217)
at org.springframework.context.support.GenericApplicationContext.<init>(GenericApplicationContext.java:102)
at org.springframework.test.context.support.AbstractGenericContextLoader.loadContext(AbstractGenericContextLoader.java:96)
at org.springframework.test.context.support.AbstractGenericContextLoader.loadContext(AbstractGenericContextLoader.java:1)
at org.springframework.test.context.support.DelegatingSmartContextLoader.loadContext(DelegatingSmartContextLoader.java:228)
at org.springframework.test.context.TestContext.loadApplicationContext(TestContext.java:124)
at org.springframework.test.context.TestContext.getApplicationContext(TestContext.java:148)
at org.springframework.test.context.support.DependencyInjectionTestExecutionListener.injectDependencies(DependencyInjectionTestExecutionListener.java:109)
at org.springframework.test.context.support.DependencyInjectionTestExecutionListener.prepareTestInstance(DependencyInjectionTestExecutionListener.java:75)
at org.springframework.test.context.TestContextManager.prepareTestInstance(TestContextManager.java:321)
at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.createTest(SpringJUnit4ClassRunner.java:211)
at org.springframework.test.context.junit4.SpringJUnit4ClassRunner$1.runReflectiveCall(SpringJUnit4ClassRunner.java:288)
at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15)
at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.methodBlock(SpringJUnit4ClassRunner.java:290)
at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:231)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:49)
at org.junit.runners.ParentRunner$3.run(ParentRunner.java:238)
at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:62)
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:236)
at org.junit.runners.ParentRunner.access$000(ParentRunner.java:52)
at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:229)

 解决方法：检查jar包是否存在冲突或jar版本是存在不兼容的问题，我的项目中是因为slf4j-api-1.6.2.jar和slf4j-jdk14-1.5.6.jar不兼容问题，将slf4j-jdk14-1.5.6.jar删除，下一个slf4j-jdk14-1.6.2.jar放在lib目录下，问题解决，slf4j-jdk14下载地址

ref:http://blog.youkuaiyun.com/tangyajun_168/article/details/8107815

而在我的项目里，发现导入了两个不同版本的slf4j-api-xxx.jar ， 总之，不冲突即可。