Spring Profiles With Maven

This project provides an example of using the new Spring profiles from the Spring 3.1 M1 release. I put this together quickly in an attempt to figure out why the Spring profiles are not being enabled by system properties either on the command line or in a Maven POM file.

Update It turns out that the problem is due to Maven not actually passing along the property as a true JVM system property. So the trick to tell Maven never to fork like so:

$ mvn clean install -Dspring.profiles.active=postgresql -DforkMode=never

Using the command above will allow the test to run successfully. I should have thought of the Maven forking but I just completely overlooked it.

Thanks, Sam!

Steps to Recreate Problem

$ git clone git@github.com:bsnyder/spring-profiles-with-maven.git
$ mvn clean install 
$  cat ./test1/test2/target/surefire-reports/com.mycompany.app.AppTest.txt 
-------------------------------------------------------------------------------
Test set: com.mycompany.app.AppTest
-------------------------------------------------------------------------------
Tests run: 1, Failures: 0, Errors: 1, Skipped: 0, Time elapsed: 2.304 sec <<< FAILURE!
test(com.mycompany.app.AppTest)  Time elapsed: 0.354 sec  <<< ERROR!
java.lang.AssertionError: The PostgreSQL driver is not being loaded (${jdbc.driver.class})
	at org.junit.Assert.fail(Assert.java:91)
	at org.junit.Assert.assertTrue(Assert.java:43)
	at com.mycompany.app.AppTest.test(AppTest.java:22)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
	at java.lang.reflect.Method.invoke(Method.java:597)
	at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:44)
	at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15)
	at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:41)
	at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:20)
	at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:76)
	at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:50)
	at org.junit.runners.ParentRunner$3.run(ParentRunner.java:193)
	at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:52)
	at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:191)
	at org.junit.runners.ParentRunner.access$000(ParentRunner.java:42)
	at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:184)
	at org.junit.runners.ParentRunner.run(ParentRunner.java:236)
	at org.apache.maven.surefire.junit4.JUnit4TestSet.execute(JUnit4TestSet.java:62)
	at org.apache.maven.surefire.suite.AbstractDirectoryTestSuite.executeTestSet(AbstractDirectoryTestSuite.java:140)
	at org.apache.maven.surefire.suite.AbstractDirectoryTestSuite.execute(AbstractDirectoryTestSuite.java:127)
	at org.apache.maven.surefire.Surefire.run(Surefire.java:177)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
	at java.lang.reflect.Method.invoke(Method.java:597)
	at org.apache.maven.surefire.booter.SurefireBooter.runSuitesInProcess(SurefireBooter.java:345)
	at org.apache.maven.surefire.booter.SurefireBooter.main(SurefireBooter.java:1009)

Notice the exception. Even though the postgresql profile is enabled via a system property that is specified in the Maven POM, the profile did not get enabled.

The same result occurs by using a system property on the command line as well. Try running the tests and add the following system property:

$ mvn clean install -Dspring.profiles.active=postgresql

The result will be the same error indicating that the profile did not load.

The reason that I did not use the Spring @ContextConfiguration annotation to load the app context XML file is because I'm trying to simulate exactly what I'm tyring to do in my real project.

So, I have recreated the problem and you have seen the error. The only way that I have found to work around this issue is to uncomment line 16 in the AppTest.java. Here is a snippet of that line:

ctx.getEnvironment().setActiveProfiles("postgresql");

By uncommenting this line, the Spring API is used directly instead of trying to rely upon a system property. Once this line is uncommented, the Spring profile loads correctly. Unfortunately this solution won't work for my situation.