I think I have clue on why image moasic is failing for 2.7-M2 on my
machine - i wonder if it is because it is a fresh tag?

The reason I ask as checking out trunk today on a new VM results in
the following failure:

org.geotools.data.DataSourceException
        at 
org.geotools.gce.imagemosaic.ImageMosaicReader.initReaderFromURL(ImageMosaicReader.java:333)
        at 
org.geotools.gce.imagemosaic.ImageMosaicReader.<init>(ImageMosaicReader.java:173)
        at 
org.geotools.gce.imagemosaic.ImageMosaicFormat.getReader(ImageMosaicFormat.java:444)
        at 
org.geotools.gce.imagemosaic.GranuleTest.testLoadRaster(GranuleTest.java:154)
        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.internal.runners.TestMethod.invoke(TestMethod.java:59)
        at 
org.junit.internal.runners.MethodRoadie.runTestMethod(MethodRoadie.java:98)
        at org.junit.internal.runners.MethodRoadie$2.run(MethodRoadie.java:79)
        at 
org.junit.internal.runners.MethodRoadie.runBeforesThenTestThenAfters(MethodRoadie.java:87)
        at org.junit.internal.runners.MethodRoadie.runTest(MethodRoadie.java:77)
        at org.junit.internal.runners.MethodRoadie.run(MethodRoadie.java:42)
        at 
org.junit.internal.runners.JUnit4ClassRunner.invokeTestMethod(JUnit4ClassRunner.java:88)
        at 
org.junit.internal.runners.JUnit4ClassRunner.runMethods(JUnit4ClassRunner.java:51)
        at 
org.junit.internal.runners.JUnit4ClassRunner$1.run(JUnit4ClassRunner.java:44)
        at 
org.junit.internal.runners.ClassRoadie.runUnprotected(ClassRoadie.java:27)
        at 
org.junit.internal.runners.ClassRoadie.runProtected(ClassRoadie.java:37)
        at 
org.junit.internal.runners.JUnit4ClassRunner.run(JUnit4ClassRunner.java:42)
        at 
org.apache.maven.surefire.junit4.JUnit4TestSet.execute(JUnit4TestSet.java:62)
        at 
org.apache.maven.surefire.suite.AbstractDirectoryTestSuite.executeTestSet(AbstractDirectoryTestSuite.java:140)
        at 
org.apache.maven.surefire.suite.AbstractDirectoryTestSuite.execute(AbstractDirectoryTestSuite.java:165)
        at org.apache.maven.surefire.Surefire.run(Surefire.java:107)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at 
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
        at 
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
        at java.lang.reflect.Method.invoke(Method.java:597)
        at 
org.apache.maven.surefire.booter.SurefireBooter.runSuitesInProcess(SurefireBooter.java:289)
        at 
org.apache.maven.surefire.booter.SurefireBooter.main(SurefireBooter.java:1005)
Caused by: java.lang.NullPointerException
        at 
org.geotools.gce.imagemosaic.RasterManager$SpatialDomainManager.prepareCoverageSpatialElements(RasterManager.java:389)
        at 
org.geotools.gce.imagemosaic.RasterManager$SpatialDomainManager.<init>(RasterManager.java:371)
        at 
org.geotools.gce.imagemosaic.RasterManager.<init>(RasterManager.java:477)
        at 
org.geotools.gce.imagemosaic.ImageMosaicReader.initReaderFromURL(ImageMosaicReader.java:307)
        ... 29 more

Is there a chance that the tests are not independent?

The actual failure from GranuleTest is

Tests run: 2, Failures: 1, Errors: 0, Skipped: 0, Time elapsed: 1.677
sec <<< FAILURE!
testLoadRaster(org.geotools.gce.imagemosaic.GranuleTest)  Time
elapsed: 0.234 sec  <<< FAILURE!
java.lang.AssertionError:
        at org.junit.Assert.fail(Assert.java:74)
        at org.junit.Assert.assertTrue(Assert.java:37)
        at org.junit.Assert.assertNotNull(Assert.java:356)
        at org.junit.Assert.assertNotNull(Assert.java:365)
        at 
org.geotools.gce.imagemosaic.GranuleTest.testLoadRaster(GranuleTest.java:155)
        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.internal.runners.TestMethod.invoke(TestMethod.java:59)
        at 
org.junit.internal.runners.MethodRoadie.runTestMethod(MethodRoadie.java:98)
        at org.junit.internal.runners.MethodRoadie$2.run(MethodRoadie.java:79)
        at 
org.junit.internal.runners.MethodRoadie.runBeforesThenTestThenAfters(MethodRoadie.java:87)
        at org.junit.internal.runners.MethodRoadie.runTest(MethodRoadie.java:77)
        at org.junit.internal.runners.MethodRoadie.run(MethodRoadie.java:42)
        at 
org.junit.internal.runners.JUnit4ClassRunner.invokeTestMethod(JUnit4ClassRunner.java:88)
        at 
org.junit.internal.runners.JUnit4ClassRunner.runMethods(JUnit4ClassRunner.java:51)
        at 
org.junit.internal.runners.JUnit4ClassRunner$1.run(JUnit4ClassRunner.java:44)
        at 
org.junit.internal.runners.ClassRoadie.runUnprotected(ClassRoadie.java:27)
        at 
org.junit.internal.runners.ClassRoadie.runProtected(ClassRoadie.java:37)
        at 
org.junit.internal.runners.JUnit4ClassRunner.run(JUnit4ClassRunner.java:42)
        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:165)
        at org.apache.maven.surefire.Surefire.run(Surefire.java:107)
        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:289)
        at 
org.apache.maven.surefire.booter.SurefireBooter.main(SurefireBooter.java:1005)

And from ImageMosaicReaderTest:

est set: org.geotools.gce.imagemosaic.ImageMosaicReaderTest
-------------------------------------------------------------------------------
Tests run: 1, Failures: 1, Errors: 0, Skipped: 0, Time elapsed: 1.978
sec <<< FAILURE!
defaultParameterValue(org.geotools.gce.imagemosaic.ImageMosaicReaderTest)
 Time elapsed: 1.951 sec  <<< FAILURE!
java.lang.AssertionError:
        at org.junit.Assert.fail(Assert.java:74)
        at org.junit.Assert.assertTrue(Assert.java:37)
        at org.junit.Assert.assertNotNull(Assert.java:356)
        at org.junit.Assert.assertNotNull(Assert.java:365)
        at 
org.geotools.gce.imagemosaic.ImageMosaicReaderTest.getReader(ImageMosaicReaderTest.java:268)
        at 
org.geotools.gce.imagemosaic.ImageMosaicReaderTest.imageMosaicSimpleParamsTest(ImageMosaicReaderTest.java:171)
        at 
org.geotools.gce.imagemosaic.ImageMosaicReaderTest.defaultParameterValue(ImageMosaicReaderTest.java:109)
        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.internal.runners.TestMethod.invoke(TestMethod.java:59)
        at 
org.junit.internal.runners.MethodRoadie.runTestMethod(MethodRoadie.java:98)
        at org.junit.internal.runners.MethodRoadie$2.run(MethodRoadie.java:79)
        at 
org.junit.internal.runners.MethodRoadie.runBeforesThenTestThenAfters(MethodRoadie.java:87)
        at org.junit.internal.runners.MethodRoadie.runTest(MethodRoadie.java:77)
        at org.junit.internal.runners.MethodRoadie.run(MethodRoadie.java:42)
        at 
org.junit.internal.runners.JUnit4ClassRunner.invokeTestMethod(JUnit4ClassRunner.java:88)
        at 
org.junit.internal.runners.JUnit4ClassRunner.runMethods(JUnit4ClassRunner.java:51)
        at 
org.junit.internal.runners.JUnit4ClassRunner$1.run(JUnit4ClassRunner.java:44)
        at 
org.junit.internal.runners.ClassRoadie.runUnprotected(ClassRoadie.java:27)
        at 
org.junit.internal.runners.ClassRoadie.runProtected(ClassRoadie.java:37)
        at 
org.junit.internal.runners.JUnit4ClassRunner.run(JUnit4ClassRunner.java:42)
        at junit.framework.JUnit4TestAdapter.run(JUnit4TestAdapter.java:36)
        at 
org.junit.internal.runners.JUnit38ClassRunner.run(JUnit38ClassRunner.java:81)
        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:165)
        at org.apache.maven.surefire.Surefire.run(Surefire.java:107)
        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:289)
        at 
org.apache.maven.surefire.booter.SurefireBooter.main(SurefireBooter.java:1005)

I am getting a bit tired of filling in bug reports on this one ...
here is the env used:

 mvn -version
Warning: JAVA_HOME environment variable is not set.
Apache Maven 2.2.1 (r801777; 2009-08-07 05:16:01+1000)
Java version: 1.6.0_20
Java home: /usr/lib/jvm/java-6-sun-1.6.0.20/jre
Default locale: en_AU, platform encoding: UTF-8
OS name: "linux" version: "2.6.32-23-generic" arch: "i386" Family: "unix"

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