This activity can only be used in microflows, not in nanoflows.
The Java action call activity can be used to call a Java action. Arguments can be passed to the action and the result can be stored in a variable.
See Microflow Element Common Properties for properties that all activities share (for example, caption). This page only describes the properties specific to the action.
2 Action Properties
2.1 Java action
The Java action that is called by this activity.
For each parameter of the Java action you have to supply an argument of the same type. The values of the arguments are expressed using expressions.
3 Output Properties
3.1 Return Type
The return type is the data type of the result of the Java action. The return type is defined by the Java action.
3.2 Variable Name
The result of the Java action will be stored in a variable with this name.