Hi,
I'm trying to build gt2 2.4.x and I'm getting the following errors:

-------------------------------------------------------------------------------
Test set: org.geotools.gce.arcgrid.ArcGridReadWriteTest
-------------------------------------------------------------------------------
Tests run: 2, Failures: 0, Errors: 2, Skipped: 0, Time elapsed: 2.859 
sec <<< FAILURE!
testErrorConditions(org.geotools.gce.arcgrid.ArcGridReadWriteTest)  Time 
elapsed: 2.813 sec  <<< ERROR!
java.lang.NoClassDefFoundError: java/lang/StringBuilder
        at 
it.geosolutions.imageio.plugins.arcgrid.raster.AsciiGridRaster.getKey(AsciiGridRaster.java:1107)
        at 
it.geosolutions.imageio.plugins.arcgrid.raster.EsriAsciiGridRaster.parseHeader(EsriAsciiGridRaster.java:151)
        at 
it.geosolutions.imageio.plugins.arcgrid.spi.AsciiGridsImageReaderSpi.canDecodeInput(AsciiGridsImageReaderSpi.java:219)
        at 
org.geotools.gce.arcgrid.ArcGridFormat.accepts(ArcGridFormat.java:142)
        at 
org.geotools.gce.arcgrid.ArcGridBaseTestCase$1.accept(ArcGridBaseTestCase.java:73)
        at java.io.File.listFiles(File.java:1076)
        at 
org.geotools.gce.arcgrid.ArcGridBaseTestCase.setUp(ArcGridBaseTestCase.java:69)
        at junit.framework.TestCase.runBare(TestCase.java:125)
        at junit.framework.TestResult$1.protect(TestResult.java:106)
        at junit.framework.TestResult.runProtected(TestResult.java:124)
        at junit.framework.TestResult.run(TestResult.java:109)
        at junit.framework.TestCase.run(TestCase.java:118)
        at junit.framework.TestSuite.runTest(TestSuite.java:208)
        at junit.framework.TestSuite.run(TestSuite.java:203)
        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:324)
        at 
org.apache.maven.surefire.junit.JUnitTestSet.execute(JUnitTestSet.java:210)
        at 
org.apache.maven.surefire.suite.AbstractDirectoryTestSuite.executeTestSet(AbstractDirectoryTestSuite.java:135)
        at 
org.apache.maven.surefire.suite.AbstractDirectoryTestSuite.execute(AbstractDirectoryTestSuite.java:122)
        at org.apache.maven.surefire.Surefire.run(Surefire.java:129)
        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:324)
        at 
org.apache.maven.surefire.booter.SurefireBooter.runSuitesInProcess(SurefireBooter.java:225)
        at 
org.apache.maven.surefire.booter.SurefireBooter.main(SurefireBooter.java:747)

testAll(org.geotools.gce.arcgrid.ArcGridReadWriteTest)  Time elapsed: 0 
sec  <<< ERROR!
java.lang.NoClassDefFoundError: java/lang/StringBuilder
        at 
it.geosolutions.imageio.plugins.arcgrid.raster.AsciiGridRaster.getKey(AsciiGridRaster.java:1107)
        at 
it.geosolutions.imageio.plugins.arcgrid.raster.EsriAsciiGridRaster.parseHeader(EsriAsciiGridRaster.java:151)
        at 
it.geosolutions.imageio.plugins.arcgrid.spi.AsciiGridsImageReaderSpi.canDecodeInput(AsciiGridsImageReaderSpi.java:219)
        at 
org.geotools.gce.arcgrid.ArcGridFormat.accepts(ArcGridFormat.java:142)
        at 
org.geotools.gce.arcgrid.ArcGridBaseTestCase$1.accept(ArcGridBaseTestCase.java:73)
        at java.io.File.listFiles(File.java:1076)
        at 
org.geotools.gce.arcgrid.ArcGridBaseTestCase.setUp(ArcGridBaseTestCase.java:69)
        at junit.framework.TestCase.runBare(TestCase.java:125)
        at junit.framework.TestResult$1.protect(TestResult.java:106)
        at junit.framework.TestResult.runProtected(TestResult.java:124)
        at junit.framework.TestResult.run(TestResult.java:109)
        at junit.framework.TestCase.run(TestCase.java:118)
        at junit.framework.TestSuite.runTest(TestSuite.java:208)
        at junit.framework.TestSuite.run(TestSuite.java:203)
        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:324)
        at 
org.apache.maven.surefire.junit.JUnitTestSet.execute(JUnitTestSet.java:210)
        at 
org.apache.maven.surefire.suite.AbstractDirectoryTestSuite.executeTestSet(AbstractDirectoryTestSuite.java:135)
        at 
org.apache.maven.surefire.suite.AbstractDirectoryTestSuite.execute(AbstractDirectoryTestSuite.java:122)
        at org.apache.maven.surefire.Surefire.run(Surefire.java:129)
        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:324)
        at 
org.apache.maven.surefire.booter.SurefireBooter.runSuitesInProcess(SurefireBooter.java:225)
        at 
org.apache.maven.surefire.booter.SurefireBooter.main(SurefireBooter.java:747)


Now, this happens because one of the imageio-ext classes is using the 
java5 StringBuilder. Yet, I'm wondering why the build server is not 
seeing this. A few hyphotesis:
* the imageio-ext deployed is older than the one I have on my disk?
* the build server is running the tests using a java5 vm?

Ah, another thing. The dependency towards imageio-ext says:

     <dependency>
       <groupId>it.geosolutions.imageio-ext</groupId>
          <artifactId>imageio-ext-arcgrid</artifactId>
          <version>1.0-SNAPSHOT</version>
     </dependency>

Hum... SNAPSHOT... since 2.4.x is a stable series wouldn't it
be better to have it work against a released version of some kind
instead of targetting a moving object?

Cheers
Andrea

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