"An error has occured." when running yamcs-studio on macOS

[stanislaw]

Hi!

I have just downloaded the latest macOS version and now I am getting this: "An error has occurred. See the log file /Users/stanislaw/yamcs-studio/.metadata/.log.

Googling for the error in the file suggests that it has to do with Java versions. I hope to have enough time to investigate this myself, however, I want this issue to be known to the developers/maintainers in case this problem can be solved on their end.

Thanks.

---

My machine:

macOS Mojave 10.14 (18A391)

Java version:

$ java -version
java version "11.0.2" 2019-01-15 LTS
Java(TM) SE Runtime Environment 18.9 (build 11.0.2+9-LTS)
Java HotSpot(TM) 64-Bit Server VM 18.9 (build 11.0.2+9-LTS, mixed mode)

and

$ /usr/libexec/java_home -V
Matching Java Virtual Machines (2):
    11.0.2, x86_64: "Java SE 11.0.2"    /Library/Java/JavaVirtualMachines/jdk-11.0.2.jdk/Contents/Home
    1.8.0_181, x86_64:  "Java SE 8" /Library/Java/JavaVirtualMachines/jdk1.8.0_181.jdk/Contents/Home

/Library/Java/JavaVirtualMachines/jdk-11.0.2.jdk/Contents/Home

The log file is as follows:

cat /Users/stanislaw/yamcs-studio/.metadata/.log
!SESSION 2019-04-18 13:24:18.088 -----------------------------------------------
eclipse.buildId=unknown
java.version=11.0.2
java.vendor=Oracle Corporation
BootLoader constants: OS=macosx, ARCH=x86_64, WS=cocoa, NL=en_DE
Framework arguments:  -keyring /Users/stanislaw/.eclipse_keyring
Command-line arguments:  -os macosx -ws cocoa -arch x86_64 -keyring /Users/stanislaw/.eclipse_keyring

!ENTRY org.eclipse.osgi 4 0 2019-04-18 13:24:21.301
!MESSAGE Application error
!STACK 1
org.eclipse.e4.core.di.InjectionException: java.lang.NoClassDefFoundError: javax/annotation/PostConstruct
    at org.eclipse.e4.core.internal.di.InjectorImpl.internalMake(InjectorImpl.java:410)
    at org.eclipse.e4.core.internal.di.InjectorImpl.make(InjectorImpl.java:318)
    at org.eclipse.e4.core.contexts.ContextInjectionFactory.make(ContextInjectionFactory.java:162)
    at org.eclipse.e4.ui.internal.workbench.swt.E4Application.createDefaultHeadlessContext(E4Application.java:491)
    at org.eclipse.e4.ui.internal.workbench.swt.E4Application.createDefaultContext(E4Application.java:505)
    at org.eclipse.e4.ui.internal.workbench.swt.E4Application.createE4Workbench(E4Application.java:204)
    at org.eclipse.ui.internal.Workbench.lambda$3(Workbench.java:614)
    at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:336)
    at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:594)
    at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:148)
    at org.yamcs.studio.editor.base.Application.runWorkbench(Application.java:154)
    at org.yamcs.studio.editor.base.Application.start(Application.java:93)
    at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:196)
    at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:134)
    at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:104)
    at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:388)
    at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:243)
    at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.base/java.lang.reflect.Method.invoke(Method.java:566)
    at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:653)
    at org.eclipse.equinox.launcher.Main.basicRun(Main.java:590)
    at org.eclipse.equinox.launcher.Main.run(Main.java:1499)
Caused by: java.lang.NoClassDefFoundError: javax/annotation/PostConstruct
    at org.eclipse.e4.core.internal.di.InjectorImpl.inject(InjectorImpl.java:124)
    at org.eclipse.e4.core.internal.di.InjectorImpl.internalMake(InjectorImpl.java:399)
    ... 23 more
Caused by: java.lang.ClassNotFoundException: javax.annotation.PostConstruct cannot be found by org.eclipse.e4.core.di_1.6.100.v20170421-1418
    at org.eclipse.osgi.internal.loader.BundleLoader.findClassInternal(BundleLoader.java:433)
    at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:395)
    at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:387)
    at org.eclipse.osgi.internal.loader.ModuleClassLoader.loadClass(ModuleClassLoader.java:150)
    at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:521)
    ... 25 more
...

[stanislaw]

My solution was to simply remove the newer version:

sudo rm -rf /Library/Java/JavaVirtualMachines/jdk-11.0.2.jdk/

[fqqb]

Jdk 11 is not yet supported, but should be soon. The studio can already be compiled using Jdk 11, but actually running the software requires a bit more work (probably we have to upgrade to a later version of the Eclipse RCP framework for this).

[fqqb]

Running on JDK 11 is possible with the latest release (v1.2.5)

[stanislaw]

Thank you!