Activating auto-imports in Python triggers NoClassDefFoundError about scijava-ui-swing

[imagejan]

@ctrueden confirmed, I also cannot reproduce the original issue (tested both on Mac OSX Yosemite and on Windows 7).

However, your example Groovy script above now throws an exception EDIT: alright, I just had to change the package name (org.scijava.ui.swing.script.AutoImporter):

groovy.lang.MissingPropertyException: No such property: net for class: Script2
    at org.codehaus.groovy.runtime.ScriptBytecodeAdapter.unwrap(ScriptBytecodeAdapter.java:50)
    at org.codehaus.groovy.runtime.callsite.PogoGetPropertySite.getProperty(PogoGetPropertySite.java:49)
    at org.codehaus.groovy.runtime.callsite.AbstractCallSite.callGroovyObjectGetProperty(AbstractCallSite.java:231)
    at Script2.run(Script2.groovy:11)
    at org.scijava.plugins.scripting.groovy.GroovyScriptEngine.eval(GroovyScriptEngine.java:303)
    at org.scijava.plugins.scripting.groovy.GroovyScriptEngine.eval(GroovyScriptEngine.java:122)
    at org.scijava.plugins.scripting.groovy.GroovyScriptEngine.eval(GroovyScriptEngine.java:114)
    at javax.script.AbstractScriptEngine.eval(Unknown Source)
    at org.scijava.script.ScriptModule.run(ScriptModule.java:177)
    at org.scijava.module.ModuleRunner.run(ModuleRunner.java:167)
    at org.scijava.module.ModuleRunner.call(ModuleRunner.java:126)
    at org.scijava.module.ModuleRunner.call(ModuleRunner.java:65)
    at org.scijava.thread.DefaultThreadService$2.call(DefaultThreadService.java:191)
    at java.util.concurrent.FutureTask.run(Unknown Source)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
    at java.lang.Thread.run(Unknown Source)

[ctrueden]

I was able to replicate the bug on Linux with the Java-8 version of Fiji. (Sadly, on my particular OS X machine, an old version of javax.vecmath.Point3f is permanently available from /System/Library/Java/Extensions/vecmath.jar.)

However, on OS X, this Groovy script:

// @PluginService pluginService
// @ScriptService scriptService

// Convenience method for use with Map<String, ? extends Collection<? extends Object>> objects
// In this case, AutoImporter#getDefaultImports() returns a Map<String, List<String>>
java.util.Map.metaClass.pkg {
    for (key in delegate.keySet())
        if (delegate.get(key).contains(it)) return key
}

autoImporterPlugins = pluginService.getPluginsOfType(net.imagej.ui.swing.script.AutoImporter)
println("Found " + autoImporterPlugins.size() + " AutoImporter plugins")

autoImporter = pluginService.createInstance(autoImporterPlugins.get(0))
lang = scriptService.getLanguageByName("jython")
importsMap = autoImporter.getDefaultImports()

// sanity check for ImageJ 1.x class
println("-- Searching for PlugIn --")
println(importsMap.pkg("PlugIn"))

// look for old Java 3D class
println("-- Searching for Point3f --")
println(importsMap.pkg("Point3f"))

outputs:

Found 1 AutoImporter plugins
-- Searching for PlugIn --
ij.plugin
-- Searching for Point3f --
null

Which has me a bit baffled!

Will return to investigate more another day.

[ctrueden]

I can no longer reproduce this bug on my system.

Perhaps relatedly, my upgrade to macOS Sierra last night wiped out everything in my /System/Library/Java/Extensions folder except for MRJToolkit.jar.

@imagejan When you have a moment, would you please try to reproduce on your end, and close this issue if you cannot do so?