Bugzilla – Full Text Bug Listing
| Summary: | Error opening view Visualization\Dot Graph | ||||||
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| Product: | [Tools] GEF | Reporter: | Evaristo Figueiredo <1010836> | ||||
| Component: | GEF Zest | Assignee: | gef-inbox <gef-inbox> | ||||
| Status: | RESOLVED WORKSFORME | QA Contact: | |||||
| Severity: | normal | ||||||
| Priority: | P3 | CC: | nyssen, steeg | ||||
| Version: | unspecified | ||||||
| Target Milestone: | --- | ||||||
| Hardware: | PC | ||||||
| OS: | Linux | ||||||
| Whiteboard: | |||||||
| Attachments: |
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Description
Evaristo Figueiredo
Attempting to reproduce, this is what I did: * Download 'Eclipse IDE for Java Developers' 4.4.1 from http://eclipse.org/downloads/ * Select a non-existing workspace location on startup * Help -> Install New Software -> Add http://download.eclipse.org/tools/gef/gef4/updates/integration * Check the GEF4 Zest category (selects all features in the category) * When requested, restart Eclipse * Window -> Show View -> Other -> Visualization -> DOT Graph The view opens fine and renders *.dot files when sync is enabled. If you get the issue doing these steps, could you attach your workspace/.metadata/.log file? If you don't, could you describe in detail (as I did above) what you did? I'll reuse your last comment and add comments to explain in detail what I do because the error remains I will also send the file you pointed me * Download 'Eclipse IDE for Java Developers' 4.4.1 from http://eclipse.org/downloads/ 1. I click in Linux 64 Bit 1.1 The hiperlink that is in front of the name of the package "Eclipse IDE for Java Developers" 1.2 On top in a blue strip I can read: "Eclipse Luna (4.4.1) Release for Linux 2. After I chose de mirror Eclipse downloads - mirror selection All downloads are provided under the terms and conditions of the Eclipse Foundation Software User Agreement unless otherwise specified. Download eclipse-java-luna-SR1-linux-gtk-x86_64.tar.gz from: Download [Portugal] Departamento de Ciencia de Computadores, FCUP (http) 3. Then I extract the contents of the file: eclipse-java-luna-SR1-linux-gtk-x86_64.tar.gz to the folder: /media/evaristo/Corrente/Principal/A2_Programacao/A1_Compiladores/A3_Eclipse_Dot 4. After I double click on the icon called eclipse 4.1 The start-up window tells me that the version of eclipse is luna * Select a non-existing workspace location on startup 5. I choose /home/evaristo/workspace/Dot 5.1 Of this path the only folders that already exist are /home/evaristo 5.2 After this step the eclipse create's the folders workspace/Dot 5.3 I'm going to send you this folders and their content in a file named: 5_3_workspace.tar.gz * Help -> Install New Software -> Add http://download.eclipse.org/tools/gef/gef4/updates/integration 6. I call my software site GEF4ZEST and I copy/paste the URL 6.1 I wait until the string "pending" disappears * Check the GEF4 Zest category (selects all features in the category) 7. Than I chose only the GEF4 Zest category 7.1 I'm going to send you a print in a file 7_Select_only_GEF4Zest.tar.gz 7.2 Click Next 7.3 Print: 7_2_Install_Details.tar.gz 7.4 Click Next 7.5 Accetp the terms of the license agreements 7.6 Finish * When requested, restart Eclipse 8. Before restart I compressed again the folders workspace/Dot 8.1 I'm going to send you this folders and their content in a file named: 8_workspace.tar.gz 8.2 Click Yes to restart the eclipse 8.2.2 The start-up window keeps telling me that the version of eclipse is luna 8.3 Ask me to select workspace 8.3.1 I choose the same folder /home/evaristo/workspace/Dot 8.3.2 Eclipse gives the following massage 8.3.2.1 File: 8_3_2_Older_Workspace_Version.tar.gz 8.3.2.2 Click OK * Window -> Show View -> Other -> Visualization -> DOT Graph 9. The window opens with the error 9.1 File: 9_1_Error.tar.gz 9.1.1 Print screen of the error message 9.2 File: 9_2_workspace.tar.gz 9.2.1 Copy of the workspace folder The view opens fine and renders *.dot files when sync is enabled. If you get the issue doing these steps, could you attach your workspace/.metadata/.log file? If you don't, could you describe in detail (as I did above) what you did? 10. All the files that I refer above will be compressed in one called Comment_2.tar.gz Created attachment 247940 [details]
All files refered in the comment n. 2
I've looked at your error log: org.eclipse.core.runtime.CoreException: Plug-in "org.eclipse.gef4.zest.fx.ui" was unable to instantiate class "org.eclipse.gef4.zest.fx.ui.view.DotGraphView". [...] Caused by: java.lang.NullPointerException at org.eclipse.fx.osgi.fxloader.FXClassLoader$FXModuleClassloader$1.findLocalClass(FXClassLoader.java:149) What seems to be null at that place (in FXClassLoader.java:149) is the classloader, created by a method called `createJREBundledClassloader`. I'm not familiar with the details of the org.eclipse.fx bundle, but I've heard of issues with FX bundling and different Java versions. As a wild guess, could this be an issue with your Java runtime, like running a JRE instead of a JDK? Alexander, you have any idea? (In reply to Fabian Steeg from comment #4) > I've looked at your error log: > > org.eclipse.core.runtime.CoreException: Plug-in > "org.eclipse.gef4.zest.fx.ui" was unable to instantiate class > "org.eclipse.gef4.zest.fx.ui.view.DotGraphView". > > [...] > > Caused by: java.lang.NullPointerException at > org.eclipse.fx.osgi.fxloader.FXClassLoader$FXModuleClassloader$1. > findLocalClass(FXClassLoader.java:149) > > What seems to be null at that place (in FXClassLoader.java:149) is the > classloader, created by a method called `createJREBundledClassloader`. > > I'm not familiar with the details of the org.eclipse.fx bundle, but I've > heard of issues with FX bundling and different Java versions. As a wild > guess, could this be an issue with your Java runtime, like running a JRE > instead of a JDK? > > Alexander, you have any idea? You should make sure that the JRE you use to start your Eclipse instance is at least a Java 7 JVM, which provides JavaFX, and that e(fx)clipse is properly installed (which should happen automatically if you consume a GEF4 build >= Mars M2. Details about e(fx)clipse requirements can be found in our contributors guide: https://wiki.eclipse.org/GEF/Contributor_Guide. Evaristo, is this still an issue? Resolving as WORKSFORME. Please reopen in case this still holds. |