Confirmed on an up-to-date M8 system. 
Start with this discrepancy;
 $ urpmq -i areca-backup
areca-backup-7.5-10.mga7.src.rpm      [note the mga7, not 8]

Otherwise the top level looks right:
 $ urpmq --requires areca-backup
eclipse-swt
 $ urpmq --whatrequires eclipse-swt
areca-backup

In spite of which:
 sudo urpmi --test areca-backup
Nid oes modd gosod pecyn gofynnwyd amdani:    [Cannot install ...]
eclipse-swt-4.14-2.mga8.x86_64 (libjawt.so(SUNWprivate_1.1)(64bit) heb ei foddloni)                                     [Unsatisfied]
And:
 $ sudo urpmi --test eclipse-swt
Nid oes modd gosod pecyn gofynnwyd amdani:    [Cannot install ...]
eclipse-swt-4.14-2.mga8.x86_64 (libjawt.so(SUNWprivate_1.1)(64bit) heb ei foddloni)                                     [Unsatisfied]

eclipse-swt supplies hundreds of files:
 $ urpmq -l eclipse-swt | wc -l
647
of which a few are *.so, but NOT libjawt.so
 $ urpmq -l eclipse-swt | grep jawt
 $
I wonder whether this is simply missing from it. OTOH it only seems to be part of the two Javas:
 java-11-openjdk:/usr/lib/jvm/java-11-openjdk-11.0.9.2-0.0.ea.1.mga8.x86_64/lib/libjawt.so
 java-1.8.0-openjdk:/usr/lib/jvm/java-1.8.0-openjdk-1.8.0.272.b02-0.0.ea.3.mga8.x86_64/jre/lib/amd64/libjawt.so
 which is not unreasonable, since "Areca Backup is a file backup tool written in java".

Unsure where the reponsibility lies: 'areca-backup' (matteo) or 'eclipse-swt' (neoclust). Assigning to the former, CC'ing the latter.

Source RPM: areca-backup => areca-backup-7.5-10.mga7.src.rpm, eclipse-4.14-2.mga8.src.rpm
Assignee: bugsquad => matteo.pasotti
CC: (none) => mageia

Hi, 

I can install areca-backup, but no runs. Appears in konsole: 

[jose@localhost ~]$ /usr/share/areca-backup/areca.sh
openjdk version "11.0.9-ea" 2020-10-20 LTS
OpenJDK Runtime Environment 18.9 (build 11.0.9-ea+6-LTS)
OpenJDK 64-Bit Server VM 18.9 (build 11.0.9-ea+6-LTS, mixed mode, sharing)
OpenJDK 64-Bit Server VM warning: Archived non-system classes are disabled because the java.system.class.loader property is specified (value = "com.application.areca.impl.tools.ArecaClassLoader"). To use archived non-system classes, this property must be not be set

(java:43192): Gdk-WARNING **: 09:19:42.766: The GDK_NATIVE_WINDOWS environment variable is not supported in GTK3.
See the documentation for gdk_window_ensure_native() on how to get native windows.

(java:43192): Gtk-WARNING **: 09:19:42.779: Theme parsing error: gtk.css:3:33: Failed to import: Error al abrir el archivo /home/jose/.config/gtk-3.0/window_decorations.css: No existe el fichero o el directorio
java.lang.NoClassDefFoundError: org/eclipse/swt/custom/TableTreeItem
        at org.eclipse.jface.util.OpenStrategy.initializeHandler(OpenStrategy.java:255)
        at org.eclipse.jface.util.OpenStrategy.<init>(OpenStrategy.java:104)
        at org.eclipse.jface.viewers.StructuredViewer.hookControl(StructuredViewer.java:1151)
        at org.eclipse.jface.viewers.AbstractTreeViewer.hookControl(AbstractTreeViewer.java:1249)
        at org.eclipse.jface.viewers.TreeViewer.hookControl(TreeViewer.java:489)
        at org.eclipse.jface.viewers.TreeViewer.<init>(TreeViewer.java:184)
        at org.eclipse.jface.viewers.TreeViewer.<init>(TreeViewer.java:171)
        at com.application.areca.launcher.gui.composites.AbstractTargetTreeComposite.<init>(Unknown Source)
        at com.application.areca.launcher.gui.composites.TargetTreeComposite.<init>(Unknown Source)
        at com.application.areca.launcher.gui.MainWindow.createContents(Unknown Source)
        at org.eclipse.jface.window.Window.create(Window.java:426)
        at org.eclipse.jface.window.Window.open(Window.java:785)
        at com.application.areca.launcher.gui.MainWindow.show(Unknown Source)
        at com.application.areca.launcher.gui.Application.show(Unknown Source)
        at com.application.areca.launcher.gui.Launcher.launchImpl(Unknown Source)
        at com.myJava.system.AbstractLauncher.launch(Unknown Source)
        at com.application.areca.launcher.gui.Launcher.main(Unknown Source)
Caused by: java.lang.ClassNotFoundException: org.eclipse.swt.custom.TableTreeItem
        at java.base/jdk.internal.loader.BuiltinClassLoader.loadClass(BuiltinClassLoader.java:581)
        at java.base/jdk.internal.loader.ClassLoaders$AppClassLoader.loadClass(ClassLoaders.java:178)
        at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:522)
        ... 17 more
20-12-14 09:19 - ERROR - Unexpected error

java.lang.NoClassDefFoundError: org/eclipse/swt/custom/TableTreeItem
        at org.eclipse.jface.util.OpenStrategy.initializeHandler(OpenStrategy.java:255)
        at org.eclipse.jface.util.OpenStrategy.<init>(OpenStrategy.java:104)
        at org.eclipse.jface.viewers.StructuredViewer.hookControl(StructuredViewer.java:1151)
        at org.eclipse.jface.viewers.AbstractTreeViewer.hookControl(AbstractTreeViewer.java:1249)
        at org.eclipse.jface.viewers.TreeViewer.hookControl(TreeViewer.java:489)
        at org.eclipse.jface.viewers.TreeViewer.<init>(TreeViewer.java:184)
        at org.eclipse.jface.viewers.TreeViewer.<init>(TreeViewer.java:171)
        at com.application.areca.launcher.gui.composites.AbstractTargetTreeComposite.<init>(Unknown Source)
        at com.application.areca.launcher.gui.composites.TargetTreeComposite.<init>(Unknown Source)
        at com.application.areca.launcher.gui.MainWindow.createContents(Unknown Source)
        at org.eclipse.jface.window.Window.create(Window.java:426)
        at org.eclipse.jface.window.Window.open(Window.java:785)
        at com.application.areca.launcher.gui.MainWindow.show(Unknown Source)
        at com.application.areca.launcher.gui.Application.show(Unknown Source)
        at com.application.areca.launcher.gui.Launcher.launchImpl(Unknown Source)
        at com.myJava.system.AbstractLauncher.launch(Unknown Source)
        at com.application.areca.launcher.gui.Launcher.main(Unknown Source)
Caused by: java.lang.ClassNotFoundException: org.eclipse.swt.custom.TableTreeItem
        at java.base/jdk.internal.loader.BuiltinClassLoader.loadClass(BuiltinClassLoader.java:581)
        at java.base/jdk.internal.loader.ClassLoaders$AppClassLoader.loadClass(ClassLoaders.java:178)
        at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:522)
        ... 17 more
20-12-14 09:19 - INFO - Closing Areca (force=false)
20-12-14 09:19 - INFO - Closing Areca (force=false)
[jose@localhost ~]$ 


Areca-backup don't update since 2015 (in Mageia is the last version). Perhaps It doesn't compatible for the last gtk3??

I've to look at it. I'll let you know asap.

OK, thanks.

Created attachment 12161 [details]
Areca konsolo output

Hi, I have seen that the packages have been updated. I have the same issue still.

In comment 5 is the konsole output now.

Greetings!!

Hi,
I'm sorry but areca-backup doesn't work with Java > 8.
As you already stated before it's no longer under active development since 2015 thus it seems we have to remove it from Mageia 8 and find a valid alternative.

Kind regards

closing as the package was moved to obsolete

Status: NEW => RESOLVED
Resolution: (none) => WONTFIX

There is a alternative application for Magiea 8??

Make it as easy as Areca?