fixed JMSReaderTest

src/test/java/kieker/analysis/plugin/reader/jms/JMSReaderTest.java

@@ -31,7 +31,7 @@ import kieker.common.record.IMonitoringRecord;
 import kieker.common.record.system.CPUUtilizationRecord;
 
 /**
- * Test for the JMSReader. TODO: Sometimes this test fails on the very first execution (e.g. first run after starting Eclipse). This should not happen!
+ * Test for the JMSReader.
  *
  * @author Lars Erik Bluemke
  *
@@ -92,8 +92,8 @@ public class JMSReaderTest {
 		// Send the record
 		jmsWriter.write(monitoringRecord);
 
-		// Let the reader consume the record
-		jmsReaderThread.join(50);
+		// Let the reader consume the record (100 ms are a compromise but waiting a shorter period resulted in a still empty output list in some cases)
+		jmsReaderThread.join(100);
 
 		assertThat(jmsReaderThread.getOutputList().isEmpty(), is(false));