public static ToStringStyle getDefaultStyle() {
        return defaultStyle;
    }
<p>Gets the default <code>ToStringStyle</code> to use.</p>

<p>This method gets a singleton default value, typically for the whole JVM.
Changing this default should generally only be done during application startup.
It is recommended to pass a <code>ToStringStyle</code> to the constructor instead
of using this global default.</p>

<p>This method can be used from multiple threads.
Internally, a <code>volatile</code> variable is used to provide the guarantee
that the latest value set using {@link #setDefaultStyle} is the value returned.
It is strongly recommended that the default style is only changed during application startup.</p>

<p>One reason for changing the default could be to have a verbose style during
development and a compact style in production.</p>

@return the default <code>ToStringStyle</code>, never null
android/android_framework/base/src/main/java/lang3/builder/ToStringBuilder.java