It is solely an image of a single bean with a vertical slit. The bean is sort of "sitting" down, and appears to be a Java Bean. The bean is slightly taller than a typical java bean.
This Java Bean icon is made in Material Design style
developed by Google. This style is based on extremely simplified shapes, thin two-pixel lines, and is optimized for 24x24 px. Unlike other vector icon packs that have merely hundreds of icons, this icon pack contains 6,000 icons, all in the same style and quality.