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Running jruby inside of a jetty server using the dropwizard framework. When I run a ruby script that creates a new java object and assigns a field of type Map<String, Object> with a value of new array. Each time this scripts runs org.jruby.gen.InterfaceImpl708991507 is loaded and never unloaded. This will slowly eat up permGen until it runs out.
Here is an example
ruby
require 'java'
import 'me.irieksts.playground.jruby.permgen.MyClass';
def test()
myList = Array.new
myClass = MyClass.new
myClass.setName('name')
myClass.setMyMap([])
myList << myClass
return myList
end
java class
package me.irieksts.playground.jruby.permgen;
import java.util.Map;
public class MyClass {
private String name;
private Map<String, Object> myMap;
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public Map<String, Object> getMyMap() {
return myMap;
}
public void setMyMap(Map<String, Object> myMap) {
this.myMap = myMap;
}
}
Calling code
public Object runScript(String script) throws IOException {
ScriptingContainer rubyContainer = new ScriptingContainer(LocalContextScope.CONCURRENT); //also happens if this is a field and not a local variable.
EmbedEvalUnit embedEvalUnit = rubyContainer.parse(script);
return rubyContainer.callMethod(embedEvalUnit.run(), "test");
}
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