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Editorial Team
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Asked: 2026-06-07T10:13:44+00:00

I have been working on a project in Eclipse that requires me to open

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I have been working on a project in Eclipse that requires me to open a file. It’s working as expected. I imported my project into Netbeans just to check it out but when run, the file can’t be opened. I think a screenshot would be most helpful in this case:

screenshot of the problem in Netbeans

Any idea what the issue is? I’ve even explicitly specified the run directory in the project properties and that still doesn’t work.

Additional Info:

  • I just remembered that I’m using the JDK 1.6 in Eclipse but Netbeans is using the JDK 1.7 — is file path resolution handled differently between the two platforms?

Also, as suggested by a few users, I added in my catch block:

System.err.println(new File(inFileName).getAbsolutePath();

Which, as it should, returns:

C:\Users\David\Dev\projects\Autocuration\pearltrees_export_02-07-2012.rdf

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1 Answer

  1. Editorial Team

    After attempting to construct the URI manually, 

    System.out.println(new File(System.getProperty("user.dir")).toURI().resolve(inFileName));

    I got the following exception:

    Exception in thread "main" java.lang.IllegalArgumentException: Illegal character in path at index 32: pearltrees_export_02-07-2012.rdf

    Considering there is no 32nd character, I assume the printStackTrace method must trim the string obtained from the exception message before printing.

    Whatever the case, it appears that Netbeans parses Run arguments using the ‘ ‘ (space) character as a separator. However, it also includes that space when it passes the arguments to the main method. In other words, I was trying to open:

    "pearltrees_export_02-07-2012.rdf "

    rather than:

    "pearltrees_export_02-07-2012.rdf"

    Simply trimming argument fixes the problem:

    inStream = new FileInputStream(new File(inFileName.trim()));

    Anyway, I cannot find any documentation stating this is the intended behavior as it is certainly different from how the java binary behaves (and any other editors I know of). For this reason I consider this a bug, and I submitted a bug report:

    http://netbeans.org/bugzilla/show_bug.cgi?id=215429

    I guess we’ll see what the Netbeans fellows have to say..

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