My operator has an Int parameter for which I set a default value (in the getParameterTypes() method):
type = new ParameterTypeInt(PARAMETER_CHUNK_SIZE,
I18N.getMessage(I18N.getGUIBundle(), "gui.label.rmx_LTFDataReader.parameter.chunk_size.description"), 1, Integer.MAX_VALUE, false);
type.setDefaultValue(IndexCachedLTFExampleTable.DEFAULT_BATCH_SIZE);
types.add(type);
...
But once the operator is instantiated in the GUI, the parameter's edit box remains empty and the GUI displays the problem "The mandatory parameter "exampleset chunk size" is undefined." What am I doing wrong?