This is the message if i change the key VMOptions for -Xmx768m in the yed.app directory.
B.A.A.c: Could not import file SAFEST FILE MAIM MAP OF ELEUSIS.graphml.
at B.A.A.J.A.ā(Unknown Source)
at B.A.A.J.A.Ă(Unknown Source)
at B.A.A.K.g.ā(Unknown Source)
at B.A.A.K.i.actionPerformed(Unknown Source)
at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:2028)
at javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2351)
... 63 more
Caused by: java.lang.OutOfMemoryError: Java heap space
at java.util.Arrays.copyOfRange(Arrays.java:3209)
at java.lang.String.<init>(String.java:215)
at com.sun.org.apache.xerces.internal.xni.XMLString.toString(XMLString.java:185)
at com.sun.org.apache.xerces.internal.parsers.AbstractDOMParser.characters(AbstractDOMParser.java:1188)
at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanDocument(XMLDocumentFragmentScannerImpl.java:464)
at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:808)
at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:737)
at com.sun.org.apache.xerces.internal.parsers.XMLParser.parse(XMLParser.java:119)
at com.sun.org.apache.xerces.internal.parsers.DOMParser.parse(DOMParser.java:235)
at com.sun.org.apache.xerces.internal.jaxp.DocumentBuilderImpl.parse(DocumentBuilderImpl.java:284)
at javax.xml.parsers.DocumentBuilder.parse(DocumentBuilder.java:124)
at y.H.B.B._.ā(Unknown Source)
at y.H.B.A$13.ā(Unknown Source)
at y.H.B.A.ā(Unknown Source)
at y.H.B.A.ā(Unknown Source)
at y.H.S.ā(Unknown Source)
at B.A.A.B.G.A.E.ā(Unknown Source)
at B.A.A.B.G.A.E.ā(Unknown Source)
at B.A.A.B.G.A.C.ā(Unknown Source)
at y.H.I.ā(Unknown Source)
at y.B.A.M.ď(Unknown Source)
at y.B.J.Č(Unknown Source)
at y.B.J.ā(Unknown Source)
at y.B.J.ă(Unknown Source)
at B.A.A.B.P.Ă(Unknown Source)
at B.A.A.B.P.ā(Unknown Source)
at B.A.A.J.A.ā(Unknown Source)
at B.A.A.J.A.Ă(Unknown Source)
at B.A.A.K.g.ā(Unknown Source)
at B.A.A.K.i.actionPerformed(Unknown Source)
at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:2028)
at javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2351)