not everyone has eclipse installed lol

[cybershrapnel]

current jar file, /sigh

java.lang.NoClassDefFoundError: org/eclipse/swt/SWTError
at net.azib.ipscan.Main.main(Main.java:50)
Caused by: java.lang.ClassNotFoundException: org.eclipse.swt.SWTError
at java.base/jdk.internal.loader.BuiltinClassLoader.loadClass(BuiltinClassLoader.java:581)
at java.base/jdk.internal.loader.ClassLoaders$AppClassLoader.loadClass(ClassLoaders.java:178)
at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:521)
... 1 more
Exception in thread "main" java.lang.NoClassDefFoundError: org/eclipse/swt/SWTError
at net.azib.ipscan.util.GoogleAnalytics.extractFirstStackFrame(GoogleAnalytics.java:69)
at net.azib.ipscan.util.GoogleAnalytics.report(GoogleAnalytics.java:54)
at net.azib.ipscan.Main.main(Main.java:83)
Caused by: java.lang.ClassNotFoundException: org.eclipse.swt.SWTError
at java.base/jdk.internal.loader.BuiltinClassLoader.loadClass(BuiltinClassLoader.java:581)
at java.base/jdk.internal.loader.ClassLoaders$AppClassLoader.loadClass(ClassLoaders.java:178)
at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:521)
... 3 more

[bigkahuna1uk]

How is this app being run?

The app comes packaged with its own JRE so it doesn't rely on the system's Java if it's installed.

For me, I see:

/Applications/Angry\ IP\ Scanner.app/Contents/MacOS/jre/bin/java -version
openjdk version "17.0.6" 2023-01-17 LTS
OpenJDK Runtime Environment (build 17.0.6+10-LTS)
OpenJDK 64-Bit Client VM (build 17.0.6+10-LTS, mixed mode)

The main application jar has all the SWT packages/classes present so perplexing:

unzip -l /Applications/Angry\ IP\ Scanner.app/Contents/MacOS/ipscan-macX86-3.9.1.jar | grep -i eclipse
4363 02-11-2023 17:10 org/eclipse/swt/SWT.class
1347 02-11-2023 17:10 org/eclipse/swt/SWTError.class
1370 02-11-2023 17:10 org/eclipse/swt/SWTException.class
62771 02-11-2023 17:10 org/eclipse/swt/accessibility/Accessible.class
929 02-11-2023 17:10 org/eclipse/swt/accessibility/AccessibleActionEvent.class
354 02-11-2023 17:10 org/eclipse/swt/accessibility/AccessibleActionListener.class
1563 02-11-2023 17:10 org/eclipse/swt/accessibility/AccessibleAttributeEvent.class
394 02-11-2023 17:10 org/eclipse/swt/accessibility/AccessibleAttributeListener.class
1342 02-11-2023 17:10 org/eclipse/swt/accessibility/AccessibleControlAdapter.class
1350 02-11-2023 17:10 org/eclipse/swt/accessibility/AccessibleControlEvent.class
481 02-11-2023 17:10 org/eclipse/swt/accessibility/AccessibleControlListener.class
1006 02-11-2023 17:10 org/eclipse/swt/accessibility/AccessibleEditableTextEvent.class
307 02-11-2023 17:10 org/eclipse/swt/accessibility/AccessibleEditableTextListener.class

[bigkahuna1uk]

This is the executable which shows all the Java modules and main jar containing SWT on the classpath:

#!/bin/sh
BASEDIR=$(dirname "$0")
java="$BASEDIR/jre/bin/java"
if [ ! -e "$java" ]; then java=java; fi
exec "$java" --add-opens java.base/java.net=ALL-UNNAMED -XstartOnFirstThread -jar "$BASEDIR"/ipscan*.jar
~