No Error Messages, but a few Concerning Infos

[Kevin Simonson]

I posted a few articles a while back in which I said I was introducing myself to Spring via the book Spring in Action (fourth edition) by Craig Walls. I kind of wanted to try out his code as the book went, so I could get the best feel for what Walls was saying. I had a little bit of trouble with the first six files he referred to, but a relative of mine was very helpful getting me set up with IntelliJ and Maven, and now when I type in "mvn clean package" in my "siaExample" directory with structure underneath it:

C:\Users\kvnsmnsn\Langs\Java\Spr\siaExample>ct

siaExample/
|-.idea/
| |-compiler.xml
| |-encodings.xml
| |-libraries/
| | |-Maven__aopalliance_aopalliance_1_0.xml
| | |-Maven__com_github_stefanbirkner_system_rules_1_16_0.xml
| | |-Maven__commons_logging_commons_logging_1_2.xml
| | |-Maven__junit_junit_4_12.xml
| | |-Maven__org_hamcrest_hamcrest_core_1_3.xml
| | |-Maven__org_springframework_spring_aop_4_0_6_RELEASE.xml
| | |-Maven__org_springframework_spring_beans_4_0_6_RELEASE.xml
| | |-Maven__org_springframework_spring_context_4_0_6_RELEASE.xml
| | |-Maven__org_springframework_spring_core_4_3_5_RELEASE.xml
| | |-Maven__org_springframework_spring_expression_4_0_6_RELEASE.xml
| | `-Maven__org_springframework_spring_test_4_0_6_RELEASE.xml
| |----------------.----------------.-uiDesigner.xml
| `-misc.xml       `-modules.xml    `-workspace.xml
|-pom.xml
|-siaExample.iml
|-src/
| |-main/
| | `-java/
| |   `-soundsystem/
| |     |---------------------.-CompactDisc.java
| |     |-CDPlayer.java       |-MediaPlayer.java
| |     `-CDPlayerConfig.java `-SgtPeppers.java
| `-test/
|   `-java/
|     `-soundsystem/
|       `-CDPlayerTest.java
`-target/
  |-classes/
  | |-com/
  | | `-simonson/
  | |   `-App.class
  | `-soundsystem/
  |   |----------------------.-CompactDisc.class
  |   |-CDPlayer.class       |-MediaPlayer.class
  |   `-CDPlayerConfig.class `-SgtPeppers.class

I don't get any error messages any more. I do get plenty of INFO messages. The first group of them look harmless enough, but the TESTS section looks like this:

-------------------------------------------------------
 T E S T S
-------------------------------------------------------
Running com.simonson.AppTest
Tests run: 1, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.02 sec
Running soundsystem.CDPlayerTest
Jan 30, 2017 11:54:22 AM org.springframework.test.context.TestContextManager ret
rieveTestExecutionListeners
INFO: Could not instantiate TestExecutionListener [org.springframework.test.cont
ext.web.ServletTestExecutionListener]. Specify custom listener classes or make t
he default listener classes (and their required dependencies) available. Offendi
ng class: [javax/servlet/ServletContext]
Jan 30, 2017 11:54:22 AM org.springframework.test.context.TestContextManager ret
rieveTestExecutionListeners
INFO: Could not instantiate TestExecutionListener [org.springframework.test.cont
ext.transaction.TransactionalTestExecutionListener]. Specify custom listener cla
sses or make the default listener classes (and their required dependencies) avai
lable. Offending class: [org/springframework/transaction/interceptor/Transaction
AttributeSource]
Jan 30, 2017 11:54:22 AM org.springframework.context.support.GenericApplicationC
ontext prepareRefresh
INFO: Refreshing org.springframework.context.support.GenericApplicationContext@6
1a485d2: startup date [Mon Jan 30 11:54:22 MST 2017]; root of context hierarchy
Playing Sgt. Pepper's Lonely Hearts Club Band by The Beatles
Tests run: 2, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.54 sec

Results :

Tests run: 3, Failures: 0, Errors: 0, Skipped: 0

[INFO]
[INFO] --- maven-jar-plugin:2.4:jar (default-jar) @ siaExample ---
[INFO] Building jar: C:\Users\kvnsmnsn\Langs\Java\Spr\siaExample\target\siaExamp
le-1.0-SNAPSHOT.jar
[INFO] ------------------------------------------------------------------------
[INFO] BUILD SUCCESS
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 5.784 s
[INFO] Finished at: 2017-01-30T11:54:23-07:00
[INFO] Final Memory: 19M/163M
[INFO] ------------------------------------------------------------------------

Are those first two INFOs anything to be concerned about? The first one starts out, "Could not instantiate TestExecutionListener [org.springframework.test.context.web.ServletTestExecutionListener]" and the second one starts out, "Could not instantiate TestExecutionListener [org.springframework.test.context.transaction.TransactionalTestExecutionListener]"; I don't know whether those two messages are anything for me to worry about or not. What does everybody here think?