Somehow, in this one run of the build, it appears that the forward-slashes are being turned into back-slashes:
make[4]: Entering directory `/cygdrive/c/Prg/OpenJDK/openjdk/j2se/make/java/awt' /usr/bin/mkdir -p c:/Prg/OpenJDK/openjdk/control/build/WINDOW~1/classes (cd c:/Prg/OpenJDK/openjdk/control/build/WINDOW~1/classes && /cygdrive/c/Prg/jd k1.6.0/bin/jar xvf /cygdrive/c/Prg/OpenJDK/BinaryPlugs/jdk1.7.0/jre/lib/rt.jar j ava/awt/color/CMMException.class java/awt/color/ColorSpace.class java/awt/color/ ICC_ColorSpace.class java/awt/color/ICC_Profile\$1.class java/awt/color/ICC_Prof ile\$2.class java/awt/color/ICC_Profile\$3.class java/awt/color/ICC_Profile.clas s java/awt/color/ICC_ProfileGray.class java/awt/color/ICC_ProfileRGB.class java/ awt/image/BandedSampleModel.class java/awt/image/ColorConvertOp.class java/awt/i mage/ComponentSampleModel.class java/awt/image/DataBuffer\$1.class java/awt/imag e/DataBuffer.class java/awt/image/DataBufferByte.class java/awt/image/DataBuffer Int.class java/awt/image/DataBufferShort.class java/awt/image/DataBufferUShort.c lass java/awt/image/MultiPixelPackedSampleModel.class java/awt/image/Raster.clas s java/awt/image/RenderedImage.class java/awt/image/SampleModel.class java/awt/i mage/SinglePixelPackedSampleModel.class java/awt/image/WritableRaster.class java /awt/image/WritableRenderedImage.class java/awt/image/renderable/ContextualRende redImageFactory.class java/awt/image/renderable/ParameterBlock.class java/awt/im age/renderable/RenderableImage.class java/awt/image/renderable/RenderableImageOp .class java/awt/image/renderable/RenderableImageProducer.class java/awt/image/re nderable/RenderContext.class java/awt/image/renderable/RenderedImageFactory.clas s) | /usr/bin/sed -e "s/^extracted:/ASSEMBLY_EXCEPTION:/" java.io.FileNotFoundException: \cygdrive\c\Prg\OpenJDK\BinaryPlugs\jdk1.7.0\jre\ lib\rt.jar (The system cannot find the path specified) at java.io.FileInputStream.open(Native Method) at java.io.FileInputStream.<init>(FileInputStream.java:106) at java.io.FileInputStream.<init>(FileInputStream.java:66) at sun.tools.jar.Main.run(Main.java:205) at sun.tools.jar.Main.main(Main.java:1022) Notice that in the FileNotFoundException it reports ā\cygwin\c\Prg\OpenJDK\...ā, using backslashes instead of forward-slashes. Not being any kind of Cygwin expert (or even journeyman), Iām not sure if this is just how Java is reporting the exception (which I doubt), or if there is some kind of translator that kicked in there to reverse them, or what. The file does exist at that location, honest. :-) Ted Neward Java, .NET, XML Services Consulting, Teaching, Speaking, Writing HYPERLINK "http://www.tedneward.com"http://www.tedneward.com No virus found in this outgoing message. Checked by AVG Free Edition. Version: 7.5.476 / Virus Database: 269.10.8/904 - Release Date: 7/16/2007 5:42 PM