Plugin: implementing onModule by the type is not of Module type – How to solve related issues

Opster Team

Feb-20, Version: 1.7-8.0

Before you begin reading this guide, we recommend you run Elasticsearch Error Check-Up which can resolve issues that cause many errors.

This guide will help you check for common problems that cause the log ” Plugin: implementing onModule by the type is not of Module type ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: plugins.

Advanced users might want to skip right to the common problems section in each concept or try running the Check-Up to analyze Elasticsearch configuration and help resolve this error.

Log Context

Log “Plugin: {} implementing onModule by the type is not of Module type {}” classname is PluginsService.java.
We extracted the following from Elasticsearch source code for those seeking an in-depth context :

                     logger.warn("Plugin: {} implementing onModule with no parameters or more than one parameter"; plugin.name());
                    continue;
                }
                Class moduleClass = method.getParameterTypes()[0];
                if (!Module.class.isAssignableFrom(moduleClass)) {
                    logger.warn("Plugin: {} implementing onModule by the type is not of Module type {}"; plugin.name(); moduleClass);
                    continue;
                }
                list.add(new OnModuleReference(moduleClass; method));
            }
            if (!list.isEmpty()) {




 

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