Hi Claus, It's not working with JUnit4 either but I found the problem: The camel context is started too early.
The system property maybeStartCamelContext is set to true and this causes the SpringCamelContext to be started in maybeStart(). If you set the maybeStartCamelContext to false the debugger works. I've attached a sample project that has test cases for JUnit4 and TestNG. For JUnit4 check the doPreSetup() in DebugJUnit4SpringCamelTest, for TestNG check the createCamelContext() in DebugTestNGSpringCamelTest. http://camel.465427.n5.nabble.com/file/n4722586/camel-debug-sample.zip camel-debug-sample.zip Cheers Andi -- View this message in context: http://camel.465427.n5.nabble.com/camel-testng-Start-debugger-with-CamelSpringTestSupport-tp4716094p4722586.html Sent from the Camel - Users mailing list archive at Nabble.com.