Junit test run normally but fails with ecobertura - Wanted but not invoked appender.doAppend();

Question

The following code:

@Mock
private Appender mockAppender;
@Captor
private ArgumentCaptor<LoggingEvent> captorLoggingEvent;
...
verify(mockAppender, atLeastOnce()).doAppend(captorLoggingEvent.capture());

run normally as JUnit test but fails using ecobertura with this message:

Wanted but not invoked:
appender.doAppend(<Capturing argument>);...Actually, there were zero interactions with this mock.

I'm using :

• Eclipse STS
• JRE(jdk1.6.0_41)
• junit-4.11.jar
• powermock-module-junit4-common-1.5.1.jar
• powermock-module-junit4-1.5.1.jar
• powermock-reflect-1.5.1.jar
• mockito-core-1.9.5.jar

Can you help me to solve this problem?