hplcsimulator.org Forums

I am a new user to HPLC simulator; I saw your presentation at ACS San Francisco, 2014 and am greatly interested in using this tool in my courses. However, after downloading the software (none of my browsers seem to be loading the app within the browser), I get an Application Error: Unable to launch the application. I have updated my Java program to the most recent version. Below are the Launch File and Exception notices I have received from the Java Launcher. Thank you for your time!
<>< Eric Davis

Launch File:
<jnlp spec="1.0+" codebase="http://www.hplcsimulator.org/" href="http://www.hplcsimulator.org/hplcsimulatorapp.jnlp" version="2.0">
<information>
<title>HPLC Simulator</title>
<vendor>hplcsimulator.org</vendor>
<homepage href="http://www.hplcsimulator.org/"/>
<description>HPLC simulator</description>
<description kind="short">HPLC simulator is a web-based high-pressure liquid chromatography simulation. Adjust a wide range of chromatographic parameters and see their affect on retention times, column efficiency, backpressure, and more.</description>
<offline-allowed/>
</information>
<security>
<all-permissions/>
</security>
<resources>
<j2se version="1.6.0_10+" href="http://java.sun.com/products/autodl/j2se"/>
<property name="sun.java2d.noddraw" value="true"/>
<jar href="HPLCSimulator.jar" main="true"/>
<extension name="jogl-all-awt" href="http://jogamp.org/deployment/jogamp-current/jogl-all-awt.jnlp"/>
<jar href="swingx-core-1.6.2.jar"/>
<jar href="jhall.jar"/>
<jar href="jh.jar"/>
<jar href="jhbasic.jar"/>
<jar href="jsearch.jar"/>
</resources>
<application-desc main-class="org.hplcsimulator.HPLCSimulatorApp"/>
</jnlp>

Exception:
java.lang.NullPointerException
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)

Hi Eric,

Thanks so much for sending the bug report. Sorry it took me a while to reply. I thought I'd already replied, but I apparently hadn't pressed the submit button.

I'm not quite sure what's going on here. I can't reproduce the error on any of the computers I have access to. Could you tell me what operating system you are using and whether it is 32- or 64-bit?

Thanks,

Paul

Hi,

I really want to use this for my class but I'm also unable to launch the application.
I'm using a PC running on Windows 7 (32-bit OS). I have Java 8.25 currently installed.
Thanks in advance!

xrobin
-------------------------------------------
I'm getting the following error:

Error: Unexpected exception: java.lang.NullPointerException

Launch File:
<jnlp spec="1.0+" codebase="http://www.hplcsimulator.org/" href="http://www.hplcsimulator.org/hplcsimulatorapp.jnlp" version="2.0">
<information>
<title>HPLC Simulator</title>
<vendor>hplcsimulator.org</vendor>
<homepage href="http://www.hplcsimulator.org/"/>
<description>HPLC simulator</description>
<description kind="short">HPLC simulator is a web-based high-pressure liquid chromatography simulation. Adjust a wide range of chromatographic parameters and see their affect on retention times, column efficiency, backpressure, and more.</description>
<offline-allowed/>
</information>
<security>
<all-permissions/>
</security>
<resources>
<j2se version="1.6.0_10+" href="http://java.sun.com/products/autodl/j2se"/>
<property name="sun.java2d.noddraw" value="true"/>
<jar href="HPLCSimulator.jar" main="true"/>
<extension name="jogl-all-awt" href="http://jogamp.org/deployment/jogamp-current/jogl-all-awt.jnlp"/>
<jar href="swingx-core-1.6.2.jar"/>
<jar href="jhall.jar"/>
<jar href="jh.jar"/>
<jar href="jhbasic.jar"/>
<jar href="jsearch.jar"/>
</resources>
<application-desc main-class="org.hplcsimulator.HPLCSimulatorApp"/>
</jnlp>

Exception:

java.lang.NullPointerException
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)