null pointer exception coming while running integration test in eclipse

I am getting same null pointer exception while running integration test in eclipse .while the test are passing when i run the same in command prompt .previously the test was also passing in eclipse but now i getting the problem

error is ::

java.lang.NullPointerException
    at java.io.FileInputStream.<init>(FileInputStream.java:103)
    at java.io.FileInputStream.<init>(FileInputStream.java:66)
    at java.io.FileReader.<init>(FileReader.java:41)
    at com.cmates.AbstractDBUnitSupport.getReader(AbstractDBUnitSupport.java:465)
    at com.cmates.AbstractDBUnitSupport.executeSqlFile(AbstractDBUnitSupport.java:329)
    at com.cmates.authorization.RegistrantProvisionsServiceImplIntTest.dropTables(RegistrantProvisionsServiceImplIntTest.java:96)
    at com.cmates.authorization.Registra开发者_Python百科ntProvisionsServiceImplIntTest.tearDown(RegistrantProvisionsServiceImplIntTest.java:105)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
    at java.lang.reflect.Method.invoke(Method.java:597)
    at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:44)
    at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15)
    at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:41)
    at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:37)
    at org.junit.runners.ParentRunner.run(ParentRunner.java:236)
    at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:45)
    at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:460)
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:673)
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:386)
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:196)

The constructor of FileInputStream throws a NullPointerException if the File parameter is null. That's where you have to start searching. Maybe you want to read a sql file that can't be resolved from the "test environment".

The method RegistrantProvisionsServiceImplIntTest.dropTables() is trying to execute an SQL file but cannot find it. You may have to refresh the project in eclipse. It could also be an issue of access rights.

You are trying to use an incorrectly initialized database connection.

Are you sure you use the "Setup + teardown" facility in JUnit correctly?