@Override
    public String toString() {
        return "TechniqueDef[name=" + name
                + ", requiredCaps=" + requiredCaps
                + ", noRender=" + noRender
                + ", lightMode=" + lightMode
                + ", usesNodes=" + usesNodes
                + ", renderState=" + renderState
                + ", forcedRenderState=" + forcedRenderState + "]";
    }
Returns the Enum containing the ShaderProgramLanguages;
@return the pre-existing EnumMap
jme3-core/src/main/java/com/jme3/material/TechniqueDef.java