Eclipse plugin: NoClassDefFoundError for org / eclipse / jdt / ui / JavaUI

Question

I am creating a plugin that requires the jdt.ui.JavaUI class. I have included the jdt.ui plugin depending. This is my Manifest.MF:

Manifest-Version: 1.0
Bundle-ManifestVersion: 2
Bundle-Name: PanelGenerator Plug-in
Bundle-SymbolicName: PanelGeneratorPlugin; singleton:=true
Bundle-Version: 0.1.0
Bundle-Activator: panelgenerator.plugin.Activator
Require-Bundle: org.eclipse.jdt.core,
 org.eclipse.ui,
 org.eclipse.core.runtime,
 org.eclipse.core.resources,
 org.eclipse.ui.ide,
 org.eclipse.jdt.ui
Eclipse-LazyStart: true

and these are my build.properties properties:

source.. = src/
output.. = bin/
bin.includes = plugin.xml,\
           META-INF/,\
           .,\
           icons/,\
           templates/

During compilation, I get no compilation errors. If I debug a plugin using Eclipse (Debug as -> Eclipse Application), it works fine.

However, when I export it, install it by copying it to the Eclipse plugins folder, the plugin does not work. Once the JavaUI class is used, nothing happens. The error log reports this:

java.lang.NoClassDefFoundError: org/eclipse/jdt/ui/JavaUI

Any ideas on why this is happening?

Answer 1

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:

Manifest-Version: 1.0
Bundle-ManifestVersion: 2
Bundle-Name: PanelGenerator Plug-in
Bundle-SymbolicName: PanelGeneratorPlugin; singleton:=true
Bundle-Version: 0.1.0
Bundle-Activator: panelgenerator.plugin.Activator
Require-Bundle:  org.eclipse.core.runtime,
 org.eclipse.core.resources,
 org.eclipse.jdt.core,
 org.eclipse.ui,
 org.eclipse.ui.ide,
 org.eclipse.jdt.ui
Eclipse-LazyStart: true

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Answer 2

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Answer 3

Eclipse ? 3.4 (Ganymede) 3.5 (Galileo), . dropins ( dropins).

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Answer 4

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, :

• Copy the exported jar to the dropins folder (not plugins). The plugin will be installed the next time you run eclipse.
• Export and install to host
• Create a project, update the site and install the plugin through the "Install New Software" menu.