Image Pyramid Reader Test fails extensive testing

Error: One factory fails for the operation "Mosaic"
Occurs in: javax.media.jai.ThreadSafeOperationRegistry
java.lang.reflect.InvocationTargetException
at sun.reflect.GeneratedMethodAccessor38.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:592)
at javax.media.jai.FactoryCache.invoke(FactoryCache.java:122)
at javax.media.jai.OperationRegistry.invokeFactory(OperationRegistry.java:1674)
at javax.media.jai.ThreadSafeOperationRegistry.invokeFactory(ThreadSafeOperationRegistry.java:473)
at javax.media.jai.registry.RIFRegistry.create(RIFRegistry.java:332)
at javax.media.jai.RenderedOp.createInstance(RenderedOp.java:819)
at javax.media.jai.RenderedOp.createRendering(RenderedOp.java:867)
at javax.media.jai.RenderedOp.getSampleModel(RenderedOp.java:2233)
at org.geotools.gce.imagemosaic.RasterLayerResponse.prepareCoverage(RasterLayerResponse.java:1069)
at org.geotools.gce.imagemosaic.RasterLayerResponse.processRequest(RasterLayerResponse.java:684)
at org.geotools.gce.imagemosaic.RasterLayerResponse.createResponse(RasterLayerResponse.java:636)
at org.geotools.gce.imagemosaic.RasterManager.read(RasterManager.java:591)
at org.geotools.gce.imagemosaic.ImageMosaicReader.read(ImageMosaicReader.java:569)
at org.geotools.gce.imagepyramid.ImagePyramidReader.loadRequestedTiles(ImagePyramidReader.java:507)
at org.geotools.gce.imagepyramid.ImagePyramidReader.loadTiles(ImagePyramidReader.java:434)
at org.geotools.gce.imagepyramid.ImagePyramidReader.read(ImagePyramidReader.java:373)
at org.geotools.gce.imagepyramid.ImagePyramidReaderTest.testCropLevel3(ImagePyramidReaderTest.java:726)
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:592)
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: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:592)
at org.apache.maven.surefire.booter.SurefireBooter.runSuitesInProcess(SurefireBooter.java:345)
at org.apache.maven.surefire.booter.SurefireBooter.main(SurefireBooter.java:1009)
Caused by: java.lang.IllegalArgumentException: Alpha images must have the same data type as the sources.
at com.sun.media.jai.opimage.MosaicOpImage.<init>(MosaicOpImage.java:223)
at com.sun.media.jai.opimage.MosaicRIF.create(MosaicRIF.java:39)
... 45 more