Bug 47208 Generate Javadoc dialog lays out too wide [javadoc]
If one uses a custom doclet and sets the doclet class path to a long path (e.g. with many JAR files on it), the "Generate Javadoc" dialog lays out to try and fit the full doclet class path on the screen; this results in a very wide dialog.
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/javadocexport/JavadocWizardPage.java
protected GridData createGridData(int flag, int hspan, int vspan, int indent) {
		GridData gd= new GridData(flag);
		gd.horizontalIndent= indent;
		gd.horizontalSpan= hspan;
		gd.verticalSpan= vspan;
		return gd;
	}
	protected GridData createGridData(int flag, int hspan, int indent) {
		GridData gd= new GridData(flag);
		gd.horizontalIndent= indent;
		gd.horizontalSpan= hspan;
		return gd;
	}
	protected GridData createGridData(int hspan) {
		GridData gd= new GridData();
		gd.horizontalSpan= hspan;
		return gd;
	}
	protected Label createLabel(Composite composite, int style, String message, GridData gd) {
		Label label= new Label(composite, style);
		label.setText(message);
		label.setLayoutData(gd);
		return label;
	}
	protected Text createText(Composite composite, int style, String message, GridData gd) {
		Text text= new Text(composite, style);
		if (message != null)
			text.setText(message);
		text.setLayoutData(gd);
		return text;