Netbeans JNLP Webstart error

Question

I have been fighting with this all day and I simply cannot figure out what I am doing wrong. I have a project in netbeans that I created a web start page for, as per the method in the netbeans tutorial but every time I try to run either the tutorial project or my project as a web start I get the following error:

java.lang.NumberFormatException: For input string: "\Users\<snip>"
at java.lang.NumberFormatException.forInputString(Unknown Source)
at java.lang.Integer.parseInt(Unknown Source)
at java.lang.Integer.parseInt(Unknown Source)
at com.sun.deploy.security.DeployManifestChecker.verifyCodebaseEx(Unknown Source)
at com.sun.deploy.security.DeployManifestChecker.verifyCodebase(Unknown Source)
at com.sun.deploy.security.DeployManifestChecker.verify(Unknown Source)
at com.sun.deploy.security.DeployManifestChecker.verify(Unknown Source)
at com.sun.javaws.security.AppPolicy.grantUnrestrictedAccess(Unknown Source)
at com.sun.javaws.security.JNLPSignedResourcesHelper.checkSignedResourcesHelper(Unknown Source)
at com.sun.javaws.security.JNLPSignedResourcesHelper.checkSignedResources(Unknown Source)
at com.sun.javaws.Launcher.prepareResources(Unknown Source)
at com.sun.javaws.Launcher.prepareAllResources(Unknown Source)
at com.sun.javaws.Launcher.prepareToLaunch(Unknown Source)
at com.sun.javaws.Launcher.prepareToLaunch(Unknown Source)
at com.sun.javaws.Launcher.launch(Unknown Source)
at com.sun.javaws.Main.launchApp(Unknown Source)
at com.sun.javaws.Main.continueInSecureThread(Unknown Source)
at com.sun.javaws.Main.access$000(Unknown Source)
at com.sun.javaws.Main$1.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)

My jnlp file is:

 <?xml version="1.0" encoding="UTF-8" standalone="no"?>
<jnlp codebase="file:/C:/Users/<snip>/dist/" href="launch.jnlp" spec="1.0+">
    <information>
        <title>...</title>
        <vendor>me</vendor>
        <homepage href=""/>
        <description>...</description>
        <description kind="short">...</description>
    </information>
    <update check="background"/>
    <security>
<all-permissions/>
</security>
    <resources>
    <j2se version="1.8+"/>
    <jar eagar="true" href="<snip>.jar" main="true"/>

    </resources>
    <application-desc main-class="<snip>">
    </application-desc>
    </jnlp>

I would really appreciate help with this

Answer 1

Just change your jnlp to this:

 <?xml version="1.0" encoding="UTF-8" standalone="no"?>
<jnlp codebase="file:/C:/MyFolder/" href="launch.jnlp" spec="1.0+">
    <information>
        <title>...</title>
        <vendor>me</vendor>
        <homepage href=""/>
        <description>...</description>
        <description kind="short">...</description>
    </information>
    <update check="background"/>
    <security>
<all-permissions/>
</security>
    <resources>
    <j2se version="1.8+"/>
    <jar eagar="true" href="MyJarFile.jar" main="true"/>

    </resources>
    <application-desc main-class="com.MyCompany.MyMainClass">
    </application-desc>
    </jnlp>

Edit: If this doesn't help or if you have a question about it add your comment below.

Answer 2

Try

file:///C:/Users/snip/dist/

in your codebase of your JNLP-XML.
File Uri-Scheme needs 2x // (file://)

EDIT:
No comment on this?

So, if this doesn't work, you can try following:
https://stackoverflow.com/a/2417010/3887073

which tells:

<jnlp spec="1.0+" codebase="file://localhost/X:/path/to/jnlp/" href="software.jnlp">

Answer 3

Make sure you are not using the path to your application as a value anywhere in your code. If the program accepts command-line arguments, try specifying the arguments as <argument></argument> sub-elements of <application-desc> in the JNLP file and running the Java Web Start program directly from the command line with

javaws path.to.ClassWithMainMethod

Answer 4

It seems that you are taking some kind of input from the user in your webstart application.

java.lang.NumberFormatException: For input string: "\Users\<snip>"
at java.lang.NumberFormatException.forInputString(Unknown Source)

Judging by this line, you requested the user to input an integer and they put in a string or something.

If you are not taking any user input, reinstalling NetBeans might help.

Cheers.