#513 Stacktrace for Windows 7

[Anonymous]

Stacktrace after crash:
program.name=DocFetcher
program.version=1.1.7
program.build=20130408-1600
program.portable=false
java.runtime.name=Java(TM) SE Runtime Environment
java.runtime.version=1.7.0_21-b11
java.version=1.7.0_21
sun.arch.data.model=32
os.arch=x86
os.name=Windows 7
os.version=6.1
user.language=en
java.lang.AssertionError
at net.sourceforge.docfetcher.model.index.file.FileFactory.unpackFromZipArchive(FileFactory.java:186)
at net.sourceforge.docfetcher.model.index.file.FileFactory.unpackFromArchive(FileFactory.java:137)
at net.sourceforge.docfetcher.model.index.file.FileFactory.createFile(FileFactory.java:94)
at net.sourceforge.docfetcher.model.search.ResultDocument.getFileResource(ResultDocument.java:297)
at net.sourceforge.docfetcher.model.search.ResultDocument.getText(ResultDocument.java:229)
at net.sourceforge.docfetcher.model.search.ResultDocument.getHighlightedText(ResultDocument.java:245)
at net.sourceforge.docfetcher.gui.preview.PreviewPanel$TextThread.doRun(PreviewPanel.java:462)
at net.sourceforge.docfetcher.gui.preview.PreviewPanel$PreviewThread.run(PreviewPanel.java:482)