public static ClassLoader getClassLoader() {
        return getClassLoader(ClassHelper.class);
    }
Return the default ClassLoader to use: typically the thread context
ClassLoader, if available; the ClassLoader that loaded the ClassUtils
class will be used as fallback.
<p/>
Call this method if you intend to use the thread context ClassLoader in a
scenario where you absolutely need a non-null ClassLoader reference: for
example, for class path resource loading (but not necessarily for
<code>Class.forName</code>, which accepts a <code>null</code> ClassLoader
reference as well).

@return the default ClassLoader (never <code>null</code>)
@see java.lang.Thread#getContextClassLoader()
lts-core/src/main/java/com/github/ltsopensource/core/commons/utils/ClassHelper.java