Test suite doesn't end gracefully

Trying to run the entire test suite locally by launching the TestRunner, runs all the tests but doesn't end gracefully. I have added a HTTP timeout, but it doesn't seem to help either. The test console shows these warnings and hangs. Please let me know what is to be done to fix this.

13:38:58,501 WARN [JRConditionalStyleFillerFactory] Conditional style should not have an 'isDefault' attribute.
13:38:58,501 WARN [JRConditionalStyleFillerFactory] Conditional style cannot have a 'style' attribute.
13:38:58,501 WARN [JRConditionalStyleFillerFactory] Conditional style should not have an 'isDefault' attribute.
13:38:58,502 WARN [JRConditionalStyleFillerFactory] Conditional style cannot have a 'style' attribute.
13:38:58,506 WARN [JRConditionalStyleFillerFactory] Conditional style should not have an 'isDefault' attribute.
13:38:58,506 WARN [JRConditionalStyleFillerFactory] Conditional style cannot have a 'style' attribute.
13:38:58,695 WARN [JRConditionalStyleFillerFactory] Conditional style should not have an 'isDefault' attribute.
13:38:58,695 WARN [JRConditionalStyleFillerFactory] Conditional style cannot have a 'style' attribute.