Question

I am trying to run Groovy and AspectJ on a module but when I add AspectJ, the classes seem to return very diferent values than I expected:

junit.framework.ComparisonFailure: null expected:<2011-04-03> but was:<null>

testGetUnixDayFromDate(com.baselogic.chapter05.utils.DateUtilitiesTest)  Time elapsed: 0.016 sec  <<< FAILURE!
junit.framework.AssertionFailedError: expected:<0> but was:<15037>

testGetDateDifferenceInDays(com.baselogic.chapter05.utils.DateUtilitiesTest)  Time elapsed: 0 sec  <<< FAILURE!
junit.framework.AssertionFailedError: expected:<0> but was:<7>

This is not what I expected and when I turn the off AspectJ, this all runs fine.

    -------------------------------------------------------
     T E S T S
    -------------------------------------------------------
    Running com.baselogic.chapter05.utils.DateUtilitiesJavaTest
    Tests run: 1, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.422 sec
    Running com.baselogic.chapter05.utils.DateUtilitiesTest
    2011-04-03
    Tests run: 3, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.062 sec
    Running com.baselogic.chapter05.utils.StringUtilitiesTest

    Tests run: 26, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.078 sec

    Results :

    Tests run: 30, Failures: 0, Errors: 0, Skipped: 0

    ...

Here is my AspectJ plugin that seems to be causing the issue:

        <plugin>
            <groupId>org.codehaus.mojo</groupId>
            <artifactId>aspectj-maven-plugin</artifactId>
            <version>1.3.1</version>
            <executions>
                <execution>
                    <goals>
                        <goal>compile</goal>
                        <goal>test-compile</goal>
                    </goals>
                </execution>
            </executions>
            <configuration>
                <complianceLevel>1.6</complianceLevel>
            </configuration>
        </plugin>

But when I enable aspectj-maven-plugin everything starts failing:

    [INFO] ------------------------------------------------------------------------
    [INFO] Building Chapter 05: Extending 1.0.2
    [INFO] ------------------------------------------------------------------------
    [INFO]
    [INFO] --- maven-clean-plugin:2.4.1:clean (default-clean) @ ch05 ---
    [INFO] Deleting C:\usr\SYNCH\PACKT\3166\Chapters_Code\ch05\target
    [INFO]
    [INFO] --- gmaven-plugin:1.3:generateStubs (default) @ ch05 ---
    [INFO] Generated 2 Java stubs
    [INFO]
    [INFO] --- maven-resources-plugin:2.4.3:resources (default-resources) @ ch05 ---
    [INFO] Using 'UTF-8' encoding to copy filtered resources.
    [INFO] Copying 0 resource
    [INFO]
    [INFO] --- maven-compiler-plugin:2.3.2:compile (default-compile) @ ch05 ---
    [INFO] Compiling 2 source files to C:\usr\SYNCH\PACKT\3166\Chapters_Code\ch05\target\classes
    [INFO]
    [INFO] --- maven-scala-plugin:2.15.2:compile (default) @ ch05 ---
    [INFO] Checking for multiple versions of scala
    [INFO] includes = [**/*.scala,**/*.java,]
    [INFO] excludes = []
    [INFO] C:\usr\SYNCH\PACKT\3166\Chapters_Code\ch05\src\main\java:-1: info: compiling
    [INFO] C:\usr\SYNCH\PACKT\3166\Chapters_Code\ch05\target\generated-sources\groovy-stubs\main:-1: info: compiling
    [INFO] C:\usr\SYNCH\PACKT\3166\Chapters_Code\ch05\src\main\groovy:-1: info: compiling
    [INFO] C:\usr\SYNCH\PACKT\3166\Chapters_Code\ch05\src\main\scala:-1: info: compiling
    [INFO] Compiling 3 source files to C:\usr\SYNCH\PACKT\3166\Chapters_Code\ch05\target\classes at 1301955015855
    [INFO] prepare-compile in 0 s
    [INFO] compile in 4 s
    [INFO]
    [INFO] --- gmaven-plugin:1.3:compile (default) @ ch05 ---
    [INFO] Compiled 3 Groovy classes
    [INFO]
    [INFO] --- clojure-maven-plugin:1.3.7:compile (compile-clojure) @ ch05 ---
    [INFO]
    [INFO] --- aspectj-maven-plugin:1.3.1:compile (default) @ ch05 ---
    [INFO]
    [INFO] --- gmaven-plugin:1.3:generateTestStubs (default) @ ch05 ---
    [INFO] Generated 2 Java stubs
    [INFO]
    [INFO] --- maven-resources-plugin:2.4.3:testResources (default-testResources) @ ch05 ---
    [INFO] Using 'UTF-8' encoding to copy filtered resources.
    [INFO] Copying 0 resource
    [INFO]
    [INFO] --- maven-compiler-plugin:2.3.2:testCompile (default-testCompile) @ ch05 ---
    [INFO] Compiling 3 source files to C:\usr\SYNCH\PACKT\3166\Chapters_Code\ch05\target\test-classes
    [INFO]
    [INFO] --- maven-scala-plugin:2.15.2:testCompile (default) @ ch05 ---
    [INFO] Checking for multiple versions of scala
    [INFO] includes = [**/*.scala,**/*.java,]
    [INFO] excludes = []
    [INFO] C:\usr\SYNCH\PACKT\3166\Chapters_Code\ch05\src\test\java:-1: info: compiling
    [INFO] C:\usr\SYNCH\PACKT\3166\Chapters_Code\ch05\target\generated-sources\groovy-stubs\test:-1: info: compiling
    [INFO] C:\usr\SYNCH\PACKT\3166\Chapters_Code\ch05\src\test\groovy:-1: info: compiling
    [INFO] C:\usr\SYNCH\PACKT\3166\Chapters_Code\ch05\src\test\scala:-1: info: compiling
    [INFO] Compiling 3 source files to C:\usr\SYNCH\PACKT\3166\Chapters_Code\ch05\target\test-classes at 1301955027323
    [INFO] prepare-compile in 0 s
    [INFO] compile in 3 s
    [INFO]
    [INFO] --- gmaven-plugin:1.3:testCompile (default) @ ch05 ---
    [INFO] Compiled 2 Groovy classes
    [INFO]
    [INFO] --- aspectj-maven-plugin:1.3.1:test-compile (default) @ ch05 ---
    [WARNING] No sources found skipping aspectJ compile
    [INFO]
    [INFO] --- maven-surefire-plugin:2.7.1:test (default-test) @ ch05 ---
    [INFO] Surefire report directory: C:\usr\SYNCH\PACKT\3166\Chapters_Code\ch05\target\surefire-reports

    -------------------------------------------------------
     T E S T S
    -------------------------------------------------------
    Running com.baselogic.chapter05.utils.DateUtilitiesJavaTest
    Apr 4, 2011 6:10:31 PM com.baselogic.chapter05.utils.DateUtilities getYesterdayDate_aroundBody11$advice
    INFO: --------------------
    Apr 4, 2011 6:10:31 PM com.baselogic.chapter05.utils.DateUtilities getYesterdayDate_aroundBody11$advice
    ...
    Tests run: 26, Failures: 21, Errors: 0, Skipped: 0, Time elapsed: 0.093 sec <<< FAILURE!

    Results :

    Failed tests:
      testGetYesterdayDate(com.baselogic.chapter05.utils.DateUtilitiesJavaTest)
    ...

    Tests run: 31, Failures: 26, Errors: 0, Skipped: 0

    [ERROR] There are test failures.

    Please refer to C:\usr\SYNCH\PACKT\3166\Chapters_Code\ch05\target\surefire-reports for the individual test results.

Here is the Groovy test:

    package com.baselogic.chapter05.utils

    import groovy.util.GroovyTestCase
    import java.util.Calendar
    import java.text.SimpleDateFormat

    class DateUtilitiesTest extends GroovyTestCase {
        protected void setUp() {
            super.setUp()
        }

        protected void tearDown() {
            super.tearDown()
        }

        public void testGetYesterdayDate() {
            Calendar calendar = Calendar.getInstance()
            calendar.add(Calendar.DATE, -1)
            SimpleDateFormat format = new SimpleDateFormat("yyyy-MM-dd")
            String expected = format.format(calendar.getTime());

            String result = DateUtilities.getYesterdayDate()
            println(result)
            assertEquals(expected, result)
        }

        void testGetUnixDayFromDate() {
            java.text.SimpleDateFormat formatter = new java.text.SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
            java.util.Date date = (java.util.Date) formatter.parse("2011-03-03 23:59:59");
            assertEquals(DateUtilities.getUnixDayFromDate(date), 15037);
        }

        void testGetDateDifferenceInDays() {
            java.text.SimpleDateFormat formatter = new java.text.SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
            java.util.Date date1 = (java.util.Date) formatter.parse("2011-03-03 23:59:59");
            java.util.Date date2 = (java.util.Date) formatter.parse("2011-03-10 23:59:59");
            assertEquals(DateUtilities.getDateDifferenceInDays(date1, date2), 7);
        }
    }

Then I created a Java unit test case as well:

    package com.baselogic.chapter05.utils;

    import org.junit.Test;

    import static org.junit.Assert.assertEquals;

    import java.text.SimpleDateFormat;
    import java.util.Calendar;

    public class DateUtilitiesJavaTest {

        @Test
        public void testGetYesterdayDate() {
            Calendar calendar = Calendar.getInstance();
            calendar.add(Calendar.DATE, -1);
            SimpleDateFormat format = new SimpleDateFormat("yyyy-MM-dd");
            String expected = format.format(calendar.getTime());

            String result = DateUtilities.getYesterdayDate();
            // Aspect DontWriteToTheConsole will complain:
            // System.out.println(result);
            assertEquals(expected, result);
        }

        @Test
        public void testGetYesterdayDateScala() {
            Calendar calendar = Calendar.getInstance();
            calendar.add(Calendar.DATE, -1);
            SimpleDateFormat format = new SimpleDateFormat("yyyy-MM-dd");
            String expected = format.format(calendar.getTime());

            String result = ScalaDateUtilities.getYesterdayDate();
            assertEquals(expected, result);
        }
    }

Can anyone help me understand why the aspectj-maven-plugin seems to be causing compilation errors with my final bytecode?

Answer 1

My experience with the GMaven has been poor. Once I switched to Gradle, much of the ‘weirdness’ went away. This sounds like that kind of weirdness you don’t want to waste time with GMaven.