will need to check whether this relates to Issue #150112

I investigated this and the conclusion is as follows.

- roughly a year ago I had experienced the same problem with the then current JDK7 version and NB dev build, later it ceased to manifest itself and I have not observed it since

- now, I tried the following JDKs: 7u14, 7u21, 7u40 and 8b91 on Windows 7 64 SP1 with the current NB dev build. The current dev build contains Ant version 1.9.0. Even after a large number of tests with both small and large projects, single and dependent, I could not reproduce the issue. Additionally I tried it in Ubuntu 12.04 with Ant 1.8.4. also unable to reproduce.

- the IDE does not lock the jar file as the jar does not exist before Ant has created it using the <fx:jar> task. The potential culprit thus could be the <fx:jar> task, but I checked in its source code that it does release its lock when it has created the jar file.

- the search for lock handlers during the build process in the configurations stated above did not reveal anything that would keep the lock at any suspicious moment (although checking this is difficult when the problem does not happen)

From the above, and from the experience that Windows file system suffered lock release delay problems especially in older Windows versions, the conclusion is that the problem most likely follows from the combination of outdated JDK, Ant, and Windows version. As the issue could not be reproduced in the current settings described above, I am closing as worksforme.

Having this issue on a complete new Windows 10 64 Bit system with latest JDK 8 and Netbeans 8.1 fresh installed. No this doesn't look like a problem of out dated releases. Same jar sign ant task was (is) running on a Win 7 system and a slower Win 10 system.

Additional info:

This is working:

<signjar alias="XXXX" verbose="true" jar="${dist.jar}" keypass="XXXXXX" storepass="keypassword" keystore="keystore" preservelastmodified="true" tsaurl="XXXXXX">
</signjar>

But using path sub tag failes (nearly every time with clean & build):

<signjar alias="XXXX" verbose="true" keypass="XXXXX" storepass="keypassword" keystore="keystore" preservelastmodified="true" tsaurl="XXXXXXX">
  <path>
    <fileset file="${dist.jar}">
    </fileset>
  </path>
</signjar>

(In reply to js-java from comment #4)
> Additional info:
> 
> This is working:
> 
> <signjar alias="XXXX" verbose="true" jar="${dist.jar}" keypass="XXXXXX"
> storepass="keypassword" keystore="keystore" preservelastmodified="true"
> tsaurl="XXXXXX">
> </signjar>
> 
> But using path sub tag failes (nearly every time with clean & build):
> 
> <signjar alias="XXXX" verbose="true" keypass="XXXXX" storepass="keypassword"
> keystore="keystore" preservelastmodified="true" tsaurl="XXXXXXX">
>   <path>
>     <fileset file="${dist.jar}">
>     </fileset>
>   </path>
> </signjar>

Well, after several tens of run, both failed.

This seems to be reproduced with Netbeans 8.1 and java 7u79 and 8u101 when the output jar is also in the classpath.

Simply removing the jars from the classpath is not sufficient; a NBs restart is required. After the restart, the issue is gone.

I could also reproduce the issue by running the ant buildfile from Eclipse, with Netbeans open (and the output jar in the classpath).

Hi I am using Netbeans 8.2, Windows 10 x64
I am working on a JavaFX project. I get this error frequently when I try to run the Project.

Enter Passphrase for keystore: Enter key password for nb-jfx: 
E:\files\dev\java\NetBeansProjects\JavaFX\JavaFXSunApp\nbproject\jfx-impl.xml:1487: The following error occurred while executing this line:
E:\files\dev\java\NetBeansProjects\JavaFX\JavaFXSunApp\nbproject\jfx-impl.xml:3009: The following error occurred while executing this line:
E:\files\dev\java\NetBeansProjects\JavaFX\JavaFXSunApp\nbproject\jfx-impl.xml:1981: jarsigner returned: 1
BUILD FAILED (total time: 3 seconds)

First attempt fails. Building again is successful. It mostly happens when I make changes in fxml file. But it has started to happen frequently.