class not found exception

[Syed0208]

Getting class not found exception while opening some diagrams. Please help in resolving this Error: Cause : org.xml.sax.SAXException: org.argouml.sequence2.diagram.UMLSequenceDiagram java.lang.ClassNotFoundException: org.argouml.sequence2.diagram.UMLSequenceDiagram at org.tigris.gef.persistence.pgml.PGMLHandler.initDiagram(PGMLHandler.java:118) at org.tigris.gef.persistence.pgml.PGMLHandler. (PGMLHandler.java:76) at org.tigris.gef.persistence.pgml.InitialHandler.startElement(InitialHandler.java:65) at com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.startElement(Unknown Source) at com.sun.org.apache.xerces.internal.impl.dtd.XMLDTDValidator.startElement(Unknown Source) at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanStartElement(Unknown Source) at com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl$ContentDriver.scanRootElementHook(Unknown Source) at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl$FragmentContentDriver.next(Unknown Source) at com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl$PrologDriver.next(Unknown Source) at com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl.next(Unknown Source) at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanDocument(Unknown Source) at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(Unknown Source) at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(Unknown Source) at com.sun.org.apache.xerces.internal.parsers.XMLParser.parse(Unknown Source) at com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.parse(Unknown Source) at com.sun.org.apache.xerces.internal.jaxp.SAXParserImpl$JAXPSAXParser.parse(Unknown Source) at com.sun.org.apache.xerces.internal.jaxp.SAXParserImpl.parse(Unknown Source) at org.tigris.gef.persistence.pgml.PGMLStackParser.readDiagram(PGMLStackParser.java:166) at org.tigris.gef.persistence.pgml.PGMLStackParser.readDiagram(PGMLStackParser.java:128) at org.argouml.persistence.PGMLStackParser.readDiagram(PGMLStackParser.java:392) at org.argouml.persistence.PGMLStackParser.readArgoDiagram(PGMLStackParser.java:367) at org.argouml.persistence.DiagramMemberFilePersister.load(DiagramMemberFilePersister.java:117) at org.argouml.persistence.UmlFilePersister.doLoad(UmlFilePersister.java:392) at org.argouml.persistence.ZargoFilePersister.doLoad(ZargoFilePersister.java:274) at org.argouml.ui.ProjectBrowser.loadProject2(ProjectBrowser.java:1607) at org.argouml.ui.ProjectBrowser.loadProject(ProjectBrowser.java:1532) at org.argouml.ui.LoadSwingWorker.construct(LoadSwingWorker.java:91) at org.argouml.ui.SwingWorker.doConstruct(SwingWorker.java:154) at org.argouml.ui.SwingWorker$2.run(SwingWorker.java:282) at java.lang.Thread.run(Unknown Source) Caused by: java.lang.ClassNotFoundException: org.argouml.sequence2.diagram.UMLSequenceDiagram at java.net.URLClassLoader.findClass(Unknown Source) at java.lang.ClassLoader.loadClass(Unknown Source) at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source) at java.lang.ClassLoader.loadClass(Unknown Source) at java.lang.Class.forName0(Native Method) at java.lang.Class.forName(Unknown Source) at org.tigris.gef.persistence.pgml.PGMLHandler.initDiagram(PGMLHandler.java:110) ... 29 more

Full exception : org.argouml.persistence.OpenException: org.xml.sax.SAXException: org.argouml.sequence2.diagram.UMLSequenceDiagram java.lang.ClassNotFoundException: org.argouml.sequence2.diagram.UMLSequenceDiagram at org.argouml.persistence.DiagramMemberFilePersister.load(DiagramMemberFilePersister.java:123) at org.argouml.persistence.UmlFilePersister.doLoad(UmlFilePersister.java:392) at org.argouml.persistence.ZargoFilePersister.doLoad(ZargoFilePersister.java:274) at org.argouml.ui.ProjectBrowser.loadProject2(ProjectBrowser.java:1607) at org.argouml.ui.ProjectBrowser.loadProject(ProjectBrowser.java:1532) at org.argouml.ui.LoadSwingWorker.construct(LoadSwingWorker.java:91) at org.argouml.ui.SwingWorker.doConstruct(SwingWorker.java:154) at org.argouml.ui.SwingWorker$2.run(SwingWorker.java:282) at java.lang.Thread.run(Unknown Source) Caused by: org.xml.sax.SAXException: org.argouml.sequence2.diagram.UMLSequenceDiagram java.lang.ClassNotFoundException: org.argouml.sequence2.diagram.UMLSequenceDiagram at org.tigris.gef.persistence.pgml.PGMLHandler.initDiagram(PGMLHandler.java:118) at org.tigris.gef.persistence.pgml.PGMLHandler. (PGMLHandler.java:76) at org.tigris.gef.persistence.pgml.InitialHandler.startElement(InitialHandler.java:65) at com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.startElement(Unknown Source) at com.sun.org.apache.xerces.internal.impl.dtd.XMLDTDValidator.startElement(Unknown Source) at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanStartElement(Unknown Source) at com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl$ContentDriver.scanRootElementHook(Unknown Source) at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl$FragmentContentDriver.next(Unknown Source) at com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl$PrologDriver.next(Unknown Source) at com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl.next(Unknown Source) at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanDocument(Unknown Source) at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(Unknown Source) at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(Unknown Source) at com.sun.org.apache.xerces.internal.parsers.XMLParser.parse(Unknown Source) at com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.parse(Unknown Source) at com.sun.org.apache.xerces.internal.jaxp.SAXParserImpl$JAXPSAXParser.parse(Unknown Source) at com.sun.org.apache.xerces.internal.jaxp.SAXParserImpl.parse(Unknown Source) at org.tigris.gef.persistence.pgml.PGMLStackParser.readDiagram(PGMLStackParser.java:166) at org.tigris.gef.persistence.pgml.PGMLStackParser.readDiagram(PGMLStackParser.java:128) at org.argouml.persistence.PGMLStackParser.readDiagram(PGMLStackParser.java:392) at org.argouml.persistence.PGMLStackParser.readArgoDiagram(PGMLStackParser.java:367) at org.argouml.persistence.DiagramMemberFilePersister.load(DiagramMemberFilePersister.java:117) ... 8 more Caused by: java.lang.ClassNotFoundException: org.argouml.sequence2.diagram.UMLSequenceDiagram at java.net.URLClassLoader.findClass(Unknown Source) at java.lang.ClassLoader.loadClass(Unknown Source) at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source) at java.lang.ClassLoader.loadClass(Unknown Source) at java.lang.Class.forName0(Native Method) at java.lang.Class.forName(Unknown Source) at org.tigris.gef.persistence.pgml.PGMLHandler.initDiagram(PGMLHandler.java:110) ... 29 more java.lang.ClassNotFoundException: org.argouml.sequence2.diagram.UMLSequenceDiagram at java.net.URLClassLoader.findClass(Unknown Source) at java.lang.ClassLoader.loadClass(Unknown Source) at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source) at java.lang.ClassLoader.loadClass(Unknown Source) at java.lang.Class.forName0(Native Method) at java.lang.Class.forName(Unknown Source) at org.tigris.gef.persistence.pgml.PGMLHandler.initDiagram(PGMLHandler.java:110) at org.tigris.gef.persistence.pgml.PGMLHandler. (PGMLHandler.java:76) at org.tigris.gef.persistence.pgml.InitialHandler.startElement(InitialHandler.java:65) at com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.startElement(Unknown Source) at com.sun.org.apache.xerces.internal.impl.dtd.XMLDTDValidator.startElement(Unknown Source) at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanStartElement(Unknown Source) at com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl$ContentDriver.scanRootElementHook(Unknown Source) at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl$FragmentContentDriver.next(Unknown Source) at com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl$PrologDriver.next(Unknown Source) at com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl.next(Unknown Source) at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanDocument(Unknown Source) at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(Unknown Source) at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(Unknown Source) at com.sun.org.apache.xerces.internal.parsers.XMLParser.parse(Unknown Source) at com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.parse(Unknown Source) at com.sun.org.apache.xerces.internal.jaxp.SAXParserImpl$JAXPSAXParser.parse(Unknown Source) at com.sun.org.apache.xerces.internal.jaxp.SAXParserImpl.parse(Unknown Source) at org.tigris.gef.persistence.pgml.PGMLStackParser.readDiagram(PGMLStackParser.java:166) at org.tigris.gef.persistence.pgml.PGMLStackParser.readDiagram(PGMLStackParser.java:128) at org.argouml.persistence.PGMLStackParser.readDiagram(PGMLStackParser.java:392) at org.argouml.persistence.PGMLStackParser.readArgoDiagram(PGMLStackParser.java:367) at org.argouml.persistence.DiagramMemberFilePersister.load(DiagramMemberFilePersister.java:117) at org.argouml.persistence.UmlFilePersister.doLoad(UmlFilePersister.java:392) at org.argouml.persistence.ZargoFilePersister.doLoad(ZargoFilePersister.java:274) at org.argouml.ui.ProjectBrowser.loadProject2(ProjectBrowser.java:1607) at org.argouml.ui.ProjectBrowser.loadProject(ProjectBrowser.java:1532) at org.argouml.ui.LoadSwingWorker.construct(LoadSwingWorker.java:91) at org.argouml.ui.SwingWorker.doConstruct(SwingWorker.java:154) at org.argouml.ui.SwingWorker$2.run(SwingWorker.java:282) at java.lang.Thread.run(Unknown Source)

[linustolke]

It looks like the umldiagrams are not loaded. Exactly how do you start argouml (and what version are you running)?

[casablancaplusplus]

I have the same problem I start argouml using java -jar argouml.jar

[euluis]

I downloaded now ArgoUML latest release from https://github.com/argouml-tigris-org/argouml/releases (ArgoUML-0.35.1.zip), extracted it to a directory in my linux system (within /home/euluis/Programs/), all files and preserving the folder structure (resulted in 54 files, mainly jar files and 2 folders).

Then, within said directory, from the terminal, ~/Programs/argouml-0.35.1 $ java -jar argouml.jar

And it worked... In specific, I added a class to the default class diagram, added a sequence diagram using 2 instances of that class one calling the other, saved the model and quit ArgoUML.

NOTE My java --version gives openjdk 17.0.8 2023-07-18

Maybe the directory you have the argouml.jar is missing all the other required jars in the release for it to work correctly?