fix: improve smetana support

https://github.com/plantuml/plantuml/issues/1348

src/h/ST_Agedge_s.java

@@ -61,10 +61,10 @@ final public class ST_Agedge_s extends ST_Agobj_s {
 
 	public String NAME;
 
-	@Override
+//	@Override
-	public String toString() {
+//	public String toString() {
-		return NAME;
+//		return NAME;
-	}
+//	}
 
 	@Override
 	public void ___(__struct__ arg) {

src/h/ST_Agnode_s.java

@@ -59,14 +59,14 @@ final public class ST_Agnode_s extends ST_Agobj_s {
 
 	public String NAME;
 
-	@Override
+//	@Override
-	public String toString() {
+//	public String toString() {
-		try {
+//		try {
-			return NAME + " rank=" + ND_rank(this) + " order=" + ND_order(this);
+//			return NAME + " rank=" + ND_rank(this) + " order=" + ND_order(this);
-		} catch (Exception e) {
+//		} catch (Exception e) {
-			return NAME;
+//			return NAME;
-		}
+//		}
-	}
+//	}
 
 	@Override
 	public void ___(__struct__ arg) {

src/h/ST_Agraph_s.java

@@ -68,10 +68,10 @@ final public class ST_Agraph_s extends ST_Agobj_s {
 	public String NAME;
 	private static int CPT = 0;
 
-	@Override
+//	@Override
-	public String toString() {
+//	public String toString() {
-		return super.toString() + " " + NAME;
+//		return super.toString() + " " + NAME;
-	}
+//	}
 
 	public ST_Agraph_s() {
 		this.NAME = "G" + CPT;

src/net/sourceforge/plantuml/abel/Link.java

@@ -541,4 +541,8 @@ public class Link extends WithLinkType implements Hideable, Removeable {
 		return getLinkArg().getVisibilityModifier();
 	}
 
+	public final boolean isOpale() {
+		return opale;
+	}
+
 }

src/net/sourceforge/plantuml/sdot/CucaDiagramFileMakerSmetana.java

@@ -50,6 +50,7 @@ import java.util.Collection;
 import java.util.LinkedHashMap;
 import java.util.List;
 import java.util.Map;
+import java.util.Map.Entry;
 import java.util.concurrent.locks.Lock;
 import java.util.concurrent.locks.ReentrantLock;
 
@@ -100,6 +101,7 @@ import net.sourceforge.plantuml.svek.GeneralImageBuilder;
 import net.sourceforge.plantuml.svek.GraphvizCrash;
 import net.sourceforge.plantuml.svek.IEntityImage;
 import net.sourceforge.plantuml.svek.SvekNode;
+import net.sourceforge.plantuml.svek.image.EntityImageNote;
 import net.sourceforge.plantuml.svek.image.EntityImageNoteLink;
 import net.sourceforge.plantuml.utils.Position;
 import smetana.core.CString;
@@ -117,6 +119,7 @@ public class CucaDiagramFileMakerSmetana implements CucaDiagramFileMaker {
 	private final Map<Entity, ST_Agnode_s> nodes = new LinkedHashMap<Entity, ST_Agnode_s>();
 	private final Map<Entity, ST_Agnode_s> coreNodes = new LinkedHashMap<Entity, ST_Agnode_s>();
 	private final Map<Link, ST_Agedge_s> edges = new LinkedHashMap<Link, ST_Agedge_s>();
+	private final Map<Link, SmetanaPath> smetanaPathes = new LinkedHashMap<Link, SmetanaPath>();
 	private final Map<Entity, ST_Agraph_s> clusters = new LinkedHashMap<Entity, ST_Agraph_s>();
 
 	private final DotStringFactory dotStringFactory;
@@ -155,8 +158,22 @@ public class CucaDiagramFileMakerSmetana implements CucaDiagramFileMaker {
 		}
 
 		public void drawU(UGraphic ug) {
+
+			smetanaPathes.clear();
+
 			ug = ug.apply(new UTranslate(6, 6 - minMax.getMinY()));
 
+			for (Map.Entry<Link, ST_Agedge_s> ent : edges.entrySet()) {
+				final Link link = ent.getKey();
+				if (link.isInvis())
+					continue;
+
+				final ST_Agedge_s edge = ent.getValue();
+				final SmetanaPath smetanaPath = new SmetanaPath(link, edge, ymirror, diagram, getLabel(link),
+						getQuantifier(link, 1), getQuantifier(link, 2), dotStringFactory.getBibliotekon());
+				smetanaPathes.put(link, smetanaPath);
+			}
+
 			for (Map.Entry<Entity, ST_Agraph_s> ent : clusters.entrySet())
 				drawGroup(ug, ymirror, ent.getKey(), ent.getValue());
 
@@ -166,19 +183,16 @@ public class CucaDiagramFileMakerSmetana implements CucaDiagramFileMaker {
 				final XPoint2D corner = getCorner(agnode);
 
 				final SvekNode node = dotStringFactory.getBibliotekon().getNode(leaf);
+				node.resetMoveSvek();
+				node.moveSvek(corner.getX(), corner.getY());
 				final IEntityImage image = node.getImage();
 				image.drawU(ug.apply(UTranslate.point(corner)));
 			}
 
-			for (Map.Entry<Link, ST_Agedge_s> ent : edges.entrySet()) {
+			for (Entry<Link, SmetanaPath> ent : smetanaPathes.entrySet())
-				final Link link = ent.getKey();
+				if (ent.getKey().isOpale() == false)
-				if (link.isInvis())
+					ent.getValue().drawU(ug);
-					continue;
 
-				final ST_Agedge_s edge = ent.getValue();
-				new SmetanaPath(link, edge, ymirror, diagram, getLabel(link), getQuantifier(link, 1),
-						getQuantifier(link, 2), dotStringFactory.getBibliotekon()).drawU(ug);
-			}
 		}
 
 		public XDimension2D calculateDimension(StringBounder stringBounder) {
@@ -205,6 +219,59 @@ public class CucaDiagramFileMakerSmetana implements CucaDiagramFileMaker {
 		printAllSubgroups(diagram.getRootGroup());
 		printEntities(getUnpackagedEntities());
 
+		for (Link link : diagram.getLinks()) {
+			if (link.isRemoved())
+				continue;
+
+			if (isOpalisable(link.getEntity1())) {
+				final SvekNode node = dotStringFactory.getBibliotekon().getNode(link.getEntity1());
+				final SvekNode other = dotStringFactory.getBibliotekon().getNode(link.getEntity2());
+				if (other != null) {
+					((EntityImageNote) node.getImage()).setOpaleLink(link, node, other, smetanaPathes);
+					link.setOpale(true);
+				}
+			} else if (isOpalisable(link.getEntity2())) {
+				final SvekNode node = dotStringFactory.getBibliotekon().getNode(link.getEntity2());
+				final SvekNode other = dotStringFactory.getBibliotekon().getNode(link.getEntity1());
+				if (other != null) {
+					((EntityImageNote) node.getImage()).setOpaleLink(link, node, other, smetanaPathes);
+					link.setOpale(true);
+				}
+			}
+
+		}
+
+	}
+
+	// Duplicate GeneralImageBuilder
+	private boolean isOpalisable(Entity entity) {
+		if (entity.isGroup())
+			return false;
+
+		if (entity.getLeafType() != LeafType.NOTE)
+			return false;
+
+		final Link single = onlyOneLink(entity);
+		if (single == null)
+			return false;
+
+		return single.getOther(entity).getLeafType() != LeafType.NOTE;
+	}
+
+	// Duplicate GeneralImageBuilder
+	private Link onlyOneLink(Entity ent) {
+		Link single = null;
+		for (Link link : diagram.getLinks()) {
+			if (link.isInvis())
+				continue;
+			if (link.contains(ent) == false)
+				continue;
+
+			if (single != null)
+				return null;
+			single = link;
+		}
+		return single;
 	}
 
 	private void drawGroup(UGraphic ug, YMirror ymirror, Entity group, ST_Agraph_s gr) {
@@ -240,7 +307,6 @@ public class CucaDiagramFileMakerSmetana implements CucaDiagramFileMaker {
 
 			if (diagram.isEmpty(g) && g.getGroupType() == GroupType.PACKAGE) {
 				g.muteToType(LeafType.EMPTY_PACKAGE);
-				printEntityNew(g);
 			} else {
 				printSingleGroup(g);
 			}
@@ -307,7 +373,7 @@ public class CucaDiagramFileMakerSmetana implements CucaDiagramFileMaker {
 			System.err.println("CANNOT FIND NODE");
 			return;
 		}
-		// System.err.println("exportEntity " + leaf);
+		System.err.println("exportEntity " + leaf);
 		final ST_Agnode_s agnode = agnode(zz, cluster, new CString(node.getUid()), true);
 		agsafeset(zz, agnode, new CString("shape"), new CString("box"), new CString(""));
 		final XDimension2D dim = getDim(node);
@@ -337,19 +403,6 @@ public class CucaDiagramFileMakerSmetana implements CucaDiagramFileMaker {
 		return result;
 	}
 
-//	private void printCluster(Globals zz, ST_Agraph_s g, Cluster cluster) {
-//		for (SvekNode node : cluster.getNodes()) {
-//			final ST_Agnode_s agnode = agnode(zz, g, new CString(node.getUid()), true);
-//			agsafeset(zz, agnode, new CString("shape"), new CString("box"), new CString(""));
-//			final String width = "" + (node.getWidth() / 72);
-//			final String height = "" + (node.getHeight() / 72);
-//			agsafeset(zz, agnode, new CString("width"), new CString(width), new CString(""));
-//			agsafeset(zz, agnode, new CString("height"), new CString(height), new CString(""));
-//			final Entity leaf = dotStringFactory.getBibliotekon().getLeaf(node);
-//			nodes.put(leaf, agnode);
-//		}
-//	}
-
 	private static final Lock lock = new ReentrantLock();
 
 	public ImageData createFile(OutputStream os, List<String> dotStrings, FileFormatOption fileFormatOption)
@@ -364,9 +417,6 @@ public class CucaDiagramFileMakerSmetana implements CucaDiagramFileMaker {
 
 	@Override
 	public void createOneGraphic(UGraphic ug) {
-		for (Entity leaf : diagram.getEntityFactory().leafs())
-			printEntityNew(leaf);
-
 		final Globals zz = Globals.open();
 		try {
 			final TextBlock textBlock = getTextBlock(zz);
@@ -381,9 +431,6 @@ public class CucaDiagramFileMakerSmetana implements CucaDiagramFileMaker {
 	private ImageData createFileLocked(OutputStream os, List<String> dotStrings, FileFormatOption fileFormatOption)
 			throws IOException {
 
-		for (Entity leaf : diagram.getEntityFactory().leafs())
-			printEntityNew(leaf);
-
 		final Globals zz = Globals.open();
 		try {
 			final TextBlock drawable = getTextBlock(zz);
@@ -544,7 +591,8 @@ public class CucaDiagramFileMakerSmetana implements CucaDiagramFileMaker {
 			node2 = getAgnodeFromLeaf(link.getEntity2());
 
 		if (node1 == null || node2 == null)
-			throw new IllegalStateException();
+			return null;
+		// throw new IllegalStateException();
 
 		final ST_Agedge_s e = agedge(zz, g, node1, node2, null, true);
 		agsafeset(zz, e, new CString("arrowtail"), new CString("none"), new CString(""));
@@ -591,17 +639,6 @@ public class CucaDiagramFileMakerSmetana implements CucaDiagramFileMaker {
 		return strings;
 	}
 
-	private void printEntityNew(Entity ent) {
-		if (ent.isRemoved()) {
-			System.err.println("Jdot STRANGE: entity is removed");
-			return;
-		}
-		final IEntityImage image = printEntityInternal(ent);
-		final SvekNode shape = getBibliotekon().createNode(ent, image, dotStringFactory.getColorSequence(),
-				stringBounder);
-		// dotStringFactory.addShape(shape);
-	}
-
 	private Bibliotekon getBibliotekon() {
 		return dotStringFactory.getBibliotekon();
 	}
@@ -619,8 +656,11 @@ public class CucaDiagramFileMakerSmetana implements CucaDiagramFileMaker {
 				// skinParam = new SkinParamSameClassWidth(dotData.getSkinParam(), width);
 			}
 
-			return GeneralImageBuilder.createEntityImageBlock(ent, skinParam, diagram.isHideEmptyDescriptionForState(),
+			final IEntityImage result = GeneralImageBuilder.createEntityImageBlock(ent, skinParam,
-					diagram, getBibliotekon(), null, diagram.getUmlDiagramType(), diagram.getLinks());
+					diagram.isHideEmptyDescriptionForState(), diagram, getBibliotekon(), null,
+					diagram.getUmlDiagramType(), diagram.getLinks());
+			ent.setSvekImage(result);
+			return result;
 		}
 		return ent.getSvekImage();
 	}

src/net/sourceforge/plantuml/sdot/SmetanaPath.java

@@ -101,7 +101,7 @@ public class SmetanaPath implements UDrawable {
 		} else if (this.link.getSpecificColor() != null)
 			color = this.link.getSpecificColor();
 
-		DotPath dotPath = getDotPath();
+		DotPath dotPath = getDotPathInternal();
 		if (ymirror != null && dotPath != null)
 			dotPath = ymirror.getMirrored(dotPath);
 
@@ -142,15 +142,33 @@ public class SmetanaPath implements UDrawable {
 				.getMergedStyle(diagram.getSkinParam().getCurrentStyleBuilder());
 	}
 
+	public XPoint2D getStartPoint() {
+		final DotPath dotPath = getDotPathInternal();
+		XPoint2D pt = dotPath.getStartPoint();
+		if (ymirror != null)
+			pt = ymirror.getMirrored(pt);
+
+		return pt;
+	}
+
+	public XPoint2D getEndPoint() {
+		final DotPath dotPath = getDotPathInternal();
+		XPoint2D pt = dotPath.getEndPoint();
+		if (ymirror != null)
+			pt = ymirror.getMirrored(pt);
+
+		return pt;
+	}
+
 	private void printExtremityAtStart(UGraphic ug) {
 		final ExtremityFactory extremityFactory2 = link.getType().getDecor2()
 				.getExtremityFactoryComplete(diagram.getSkinParam().getBackgroundColor());
 		if (extremityFactory2 == null)
 			return;
 
-		DotPath s = getDotPath();
+		final DotPath dotPath = getDotPathInternal();
-		XPoint2D p0 = s.getStartPoint();
+		XPoint2D p0 = dotPath.getStartPoint();
-		double startAngle = s.getStartAngle();
+		double startAngle = dotPath.getStartAngle();
 		if (ymirror != null) {
 			p0 = ymirror.getMirrored(p0);
 			startAngle = -startAngle + Math.PI;
@@ -172,9 +190,9 @@ public class SmetanaPath implements UDrawable {
 		if (extremityFactory1 == null)
 			return;
 
-		DotPath s = getDotPath();
+		final DotPath dotPath = getDotPathInternal();
-		XPoint2D p0 = s.getEndPoint();
+		XPoint2D p0 = dotPath.getEndPoint();
-		double endAngle = s.getEndAngle();
+		double endAngle = dotPath.getEndAngle();
 		if (ymirror != null) {
 			p0 = ymirror.getMirrored(p0);
 			endAngle = -endAngle;
@@ -242,7 +260,7 @@ public class SmetanaPath implements UDrawable {
 
 	private DotPath dotPath;
 
-	private DotPath getDotPath() {
+	private DotPath getDotPathInternal() {
 		if (dotPath != null)
 			return dotPath;
 
@@ -267,7 +285,8 @@ public class SmetanaPath implements UDrawable {
 		if (link.getEntity2().isGroup()) {
 			final Cluster cluster2 = bibliotekon.getCluster(link.getEntity2());
 			// System.err.println("WARNING: a group " + cluster2.getRectangleArea());
-			// dotPath = dotPath.simulateCompound(cluster2.getRectangleArea(), cluster2.getRectangleArea());
+			// dotPath = dotPath.simulateCompound(cluster2.getRectangleArea(),
+			// cluster2.getRectangleArea());
 		}
 		return dotPath;
 	}

src/net/sourceforge/plantuml/svek/AbstractEntityImage.java

@@ -40,8 +40,6 @@ import java.util.Objects;
 import net.sourceforge.plantuml.abel.Entity;
 import net.sourceforge.plantuml.klimt.color.HColor;
 import net.sourceforge.plantuml.klimt.font.StringBounder;
-import net.sourceforge.plantuml.klimt.geom.MagneticBorder;
-import net.sourceforge.plantuml.klimt.geom.MagneticBorderNone;
 import net.sourceforge.plantuml.klimt.shape.AbstractTextBlock;
 import net.sourceforge.plantuml.stereo.Stereotype;
 import net.sourceforge.plantuml.style.ISkinParam;

src/net/sourceforge/plantuml/svek/Bibliotekon.java

@@ -57,6 +57,12 @@ public class Bibliotekon {
 	private final List<SvekLine> lines1 = new ArrayList<>();
 	private final List<SvekLine> allLines = new ArrayList<>();
 
+	private final Collection<Link> links;
+
+	public Bibliotekon(Collection<Link> links) {
+		this.links = links;
+	}
+
 	public SvekNode createNode(Entity ent, IEntityImage image, ColorSequence colorSequence,
 			StringBounder stringBounder) {
 		final SvekNode node = new SvekNode(ent, image, colorSequence, stringBounder);
@@ -190,8 +196,9 @@ public class Bibliotekon {
 	}
 
 	public Entity getOnlyOther(Entity entity) {
-		for (SvekLine line : allLines) {
+		for (Link link : links)
-			final Entity other = line.getOther(entity);
+			if (link.contains(entity)) {
+				final Entity other = link.getOther(entity);
 				if (other != null)
 					return other;
 

src/net/sourceforge/plantuml/svek/DotStringFactory.java

@@ -69,7 +69,7 @@ import net.sourceforge.plantuml.vizjs.GraphvizJsRuntimeException;
 
 public class DotStringFactory implements Moveable {
 
-	private final Bibliotekon bibliotekon = new Bibliotekon();
+	private final Bibliotekon bibliotekon;
 
 	private final ColorSequence colorSequence;
 	private final Cluster root;
@@ -92,6 +92,7 @@ public class DotStringFactory implements Moveable {
 		this.root = new Cluster(dotData.getEntityFactory().getDiagram(), colorSequence, skinParam,
 				dotData.getRootGroup());
 		this.current = root;
+		this.bibliotekon = new Bibliotekon(dotData.getLinks());
 	}
 
 	public DotStringFactory(StringBounder stringBounder, ICucaDiagram diagram) {
@@ -103,6 +104,7 @@ public class DotStringFactory implements Moveable {
 		this.stringBounder = stringBounder;
 		this.root = new Cluster(diagram, colorSequence, skinParam, diagram.getEntityFactory().getRootGroup());
 		this.current = root;
+		this.bibliotekon = new Bibliotekon(diagram.getLinks());
 	}
 
 	public void addNode(SvekNode node) {

src/net/sourceforge/plantuml/svek/SvekLine.java

@@ -1084,12 +1084,12 @@ public class SvekLine implements Moveable, Hideable, GuideLine {
 		return new XPoint2D(dx + end.getX(), dy + end.getY());
 	}
 
-	public Entity getOther(Entity entity) {
+//	public Entity getOther(Entity entity) {
-		if (link.contains(entity))
+//		if (link.contains(entity))
-			return link.getOther(entity);
+//			return link.getOther(entity);
-
+//
-		return null;
+//		return null;
-	}
+//	}
 
 	public StyleBuilder getCurrentStyleBuilder() {
 		return link.getStyleBuilder();

src/net/sourceforge/plantuml/svek/SvekNode.java

@@ -378,6 +378,11 @@ public class SvekNode implements Positionable, Hideable {
 		return shield().isZero() == false;
 	}
 
+	public void resetMoveSvek() {
+		this.minX = 0;
+		this.minY = 0;
+	}
+
 	public void moveSvek(double deltaX, double deltaY) {
 		this.minX += deltaX;
 		this.minY += deltaY;

src/net/sourceforge/plantuml/svek/image/EntityImageNote.java

@@ -40,6 +40,7 @@ import java.util.Map;
 import java.util.Objects;
 
 import net.sourceforge.plantuml.abel.Entity;
+import net.sourceforge.plantuml.abel.Link;
 import net.sourceforge.plantuml.cucadiagram.BodyFactory;
 import net.sourceforge.plantuml.klimt.UGroupType;
 import net.sourceforge.plantuml.klimt.UPath;
@@ -61,6 +62,7 @@ import net.sourceforge.plantuml.klimt.geom.XPoint2D;
 import net.sourceforge.plantuml.klimt.shape.DotPath;
 import net.sourceforge.plantuml.klimt.shape.TextBlock;
 import net.sourceforge.plantuml.klimt.shape.TextBlockEmpty;
+import net.sourceforge.plantuml.sdot.SmetanaPath;
 import net.sourceforge.plantuml.skin.ColorParam;
 import net.sourceforge.plantuml.skin.CornerParam;
 import net.sourceforge.plantuml.skin.SkinParamBackcolored;
@@ -201,7 +203,37 @@ public class EntityImageNote extends AbstractEntityImage implements Stencil {
 			ug.startUrl(url);
 
 		final UGraphic ug2 = UGraphicStencil.create(ug, this, UStroke.simple());
-		if (opaleLine == null || opaleLine.isOpale() == false) {
+		if (opaleLink != null) {
+			final StringBounder stringBounder = ug.getStringBounder();
+
+			final SmetanaPath smetanaEdged = smetanaPathes.get(opaleLink);
+			final UTranslate move = new UTranslate(-node.getMinX(), -node.getMinY());
+
+			final XPoint2D startPoint = move.getTranslated(smetanaEdged.getStartPoint());
+			final XPoint2D endPoint = move.getTranslated(smetanaEdged.getEndPoint());
+
+			final UTranslate force1 = getMagneticBorder().getForceAt(stringBounder, smetanaEdged.getStartPoint());
+			final UTranslate force2 = other.getMagneticBorder().getForceAt(stringBounder, smetanaEdged.getEndPoint());
+
+			final double textWidth = getTextWidth(stringBounder);
+			final double textHeight = getTextHeight(stringBounder);
+			final XPoint2D center = new XPoint2D(textWidth / 2, textHeight / 2);
+
+			XPoint2D pp1 = force2.getTranslated(startPoint);
+			XPoint2D pp2 = force1.getTranslated(endPoint);
+			if (pp1.distance(center) < pp2.distance(center)) {
+				pp1 = force1.getTranslated(endPoint);
+				pp2 = force2.getTranslated(startPoint);
+			}
+
+			final Direction strategy = getOpaleStrategy(textWidth, textHeight, pp2);
+			final Opale opale = new Opale(shadowing, borderColor, noteBackgroundColor, textBlock, true, getStroke());
+			opale.setRoundCorner(getRoundCorner());
+			opale.setOpale(strategy, pp2, pp1);
+			final UGraphic stroked = applyStroke(ug2);
+			opale.drawU(Colors.applyStroke(stroked, getEntity().getColors()));
+
+		} else if (opaleLine == null || opaleLine.isOpale() == false) {
 			drawNormal(ug2);
 		} else {
 			final StringBounder stringBounder = ug.getStringBounder();
@@ -306,8 +338,10 @@ public class EntityImageNote extends AbstractEntityImage implements Stencil {
 	}
 
 	private SvekLine opaleLine;
+	private Link opaleLink;
 	private SvekNode node;
 	private SvekNode other;
+	private Map<Link, SmetanaPath> smetanaPathes;
 
 	public void setOpaleLine(SvekLine line, SvekNode node, SvekNode other) {
 		this.opaleLine = line;
@@ -315,6 +349,13 @@ public class EntityImageNote extends AbstractEntityImage implements Stencil {
 		this.other = Objects.requireNonNull(other);
 	}
 
+	public void setOpaleLink(Link link, SvekNode node, SvekNode other, Map<Link, SmetanaPath> edges) {
+		this.opaleLink = link;
+		this.node = node;
+		this.other = Objects.requireNonNull(other);
+		this.smetanaPathes = edges;
+	}
+
 	public double getStartingX(StringBounder stringBounder, double y) {
 		return 0;
 	}

src/net/sourceforge/plantuml/svek/image/EntityImageTips.java

@@ -125,19 +125,24 @@ public class EntityImageTips extends AbstractEntityImage {
 	public void drawU(UGraphic ug) {
 		final StringBounder stringBounder = ug.getStringBounder();
 
-		final Entity other = bibliotekon.getOnlyOther(getEntity());
+		final Entity tmp = getEntity();
+		final Entity other = bibliotekon.getOnlyOther(tmp);
+		if (other == null) {
+			System.err.println("Error1 in EntityImageTips");
+			return;
+		}
 
 		final SvekNode nodeMe = bibliotekon.getNode(getEntity());
 		final SvekNode nodeOther = bibliotekon.getNode(other);
-		final XPoint2D positionMe = nodeMe.getPosition();
 		if (nodeOther == null) {
-			System.err.println("Error in EntityImageTips");
+			System.err.println("Error2 in EntityImageTips");
 			return;
 		}
 		final XPoint2D positionOther = nodeOther.getPosition();
 		bibliotekon.getNode(getEntity());
 		final Position position = getPosition();
 		Direction direction = position.reverseDirection();
+		final XPoint2D positionMe = nodeMe.getPosition();
 		double height = 0;
 		for (Map.Entry<String, Display> ent : getEntity().getTips().entrySet()) {
 			final Display display = ent.getValue();

src/net/sourceforge/plantuml/version/Version.java

@@ -82,7 +82,7 @@ public class Version {
 	}
 
 	public static int beta() {
-		final int beta = 5;
+		final int beta = 6;
 		return beta;
 	}