exception while adding text searcher in custom field

[Vedant Kulkarni]

Instantiation of bean failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate : No default constructor found; nested exception is java.lang.NoSuchMethodException: userCF.MyTextSearcher.<init>()

plugin.xml

<?xml version="1.0" encoding="UTF-8"?>

<atlassian-plugin key="${atlassian.plugin.key}" name="${project.name}" plugins-version="2">
<plugin-info>
<description>${project.description}</description>
<version>${project.version}</version>
<vendor name="${project.organization.name}" url="${project.organization.url}"/>
<param name="plugin-icon">images/pluginIcon.png</param>
<param name="plugin-logo">images/pluginLogo.png</param>
</plugin-info>
<!-- add our i18n resource -->
<resource type="i18n" name="i18n" location="userCF"/>
<!-- add our web resources -->
<web-resource key="userCF-resources" name="userCF Web Resources">
<dependency>com.atlassian.auiplugin:ajs</dependency>
<resource type="download" name="userCF.css" location="/css/userCF.css"/>
<resource type="download" name="userCF.js" location="/js/userCF.js"/>
<resource type="download" name="images/" location="/images"/>
<context>userCF</context>
</web-resource>


<customfield-type name="Read Only User CF" i18n-name-key="read-only-user-cf.name" key="read-only-user-cf" class="userCF.ReadOnlyUserCF">
<description key="read-only-user-cf.description">The Read Only User CF Plugin</description>
<resource name="view" type="velocity" location="/templates/customfields/read-only-user-cf/view.vm"/>
<resource name="edit" type="velocity" location="/templates/customfields/read-only-user-cf/edit.vm"/>
</customfield-type>

<customfield-searcher key="readonly-user-searcher" name="Read Only User Searcher"
class="com.atlassian.jira.issue.customfields.searchers.TextSearcher">
<description key="admin.customfield.searcher.textsearcher.desc">Search for Read Only User using a free text search.</description>
<resource type="velocity" name="search" location="templates/plugins/fields/edit-searcher/search-basictext.vm"/>
<resource type="velocity" name="view" location="templates/plugins/fields/view-searcher/view-searcher-basictext.vm"/>
<valid-customfield-type package="${atlassian.plugin.key}.read-only-user-cf" key="readonly-user"/>
</customfield-searcher>

</atlassian-plugin>

Do I need to create separate text searcher class?

[Gregor Kasmann_Actonic]

You should try to create your own CustomFieldSearcher implementation.

Something like:

public class MySearcher extends AbstractInitializationCustomFieldSearcher implements CustomFieldSearcher {
// implementation here
}