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Netbeans hangs when it exits. #344

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ExIngus opened this issue Jul 13, 2017 · 10 comments
Closed

Netbeans hangs when it exits. #344

ExIngus opened this issue Jul 13, 2017 · 10 comments
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@ExIngus
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@ExIngus ExIngus commented Jul 13, 2017

Netbeans hangs when it exits.
In the tryGetLineSeparatorForTextFile method from the class java.org.netbeans.gradle.project.util.NbFileUtils.

1

It helps to delete files "gradle-app.setting" ".nb-gradle-properties" and folder ".nb-gradle"

@ExIngus
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@ExIngus ExIngus commented Jul 13, 2017

Repeat on other projects failed.
Perhaps the configuration files were from the old version or damaged.

@kelemen
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@kelemen kelemen commented Jul 13, 2017

This is the shutdown hook trying to save the configurations.

If you look at that method in the sources, it does nothing fancy but reads the config file from the disk. So, it means that the file system does not answer for some reason (or is slow for something, maybe a slow network drive?).

Though I don't think I can fix this problem but I might mitigate it by being less aggressive when saving the configurations. I will see if there is anything I can do about that.

@kelemen
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@kelemen kelemen commented Jul 13, 2017

It is possible that something is keeping this file open for writing and the read waits for new writes. What OS are you using?

@ExIngus
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@ExIngus ExIngus commented Jul 14, 2017

OS windows 7, x64
The problem was repeated all the time, but only on one of the projects. I think it was the file that was to blame.
I'm sorry I did not save it for tests.

@kelemen
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@kelemen kelemen commented Jul 14, 2017

I seriously doubt that it is the content of the file, you may look at NbFileUtils.tryGetLineSeparatorForTextFile but it really just loops over a file stream, there is no compicated parsing here. If anything, then it was the location or that it was open for writting (with shared read).

@ExIngus
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@ExIngus ExIngus commented Jul 16, 2017

@kelemen
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@kelemen kelemen commented Jul 16, 2017

That would mean, that Files.newInputStream(file) (which is a core JDK method) returns an infinitely long file stream. Given that there are no infinitely long files, I doubt that, because that would be a huge bug in the JDK.

@ExIngus
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@ExIngus ExIngus commented Jul 16, 2017

@kelemen
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@kelemen kelemen commented Jul 16, 2017

Thanks, I didn't even notice that the second read fails to set the readCount. I guess noone noticed this bug simply because the first line should always be shorter than 8 kB. This bug actually prevents saving settings until you close NB. I will fix it and will have a new release (fixing another bug).

@kelemen kelemen added the bug label Jul 16, 2017
kelemen added a commit that referenced this issue Jul 16, 2017
…iles. (Issue #344).
@kelemen
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@kelemen kelemen commented Jul 16, 2017

I have released a new version containing the fix of this bug. You can wait for it to be available in the plugins menu or install it manually (for the NB Plugin Portal page or from the releases page of GitHub).

@kelemen kelemen closed this Jul 16, 2017
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