#2776 Freecol 11.1 is not running

[Mike Comber]

hi - have just downloaded Freecol 11.1 on an iMac, which is running OS X Yosemite (10.10.1) - installed "legacy Java SE 6" - as requested by the programme. However, when I run Freecol I get an error message stating that :
"FreeCol.app" is damaged and can't be opened. You should move it to the Trash.

Any ideas??

[Calebrw]

Have you tried updated to Java 7? I know a lot (or all) of the code has been updated for use with Java 7, but I'm unsure whether running the application requires Java 7 or higher or not.

Can you try updating to Java 7 with the link from Java.com at https://www.java.com/en/download/manual_java7.jsp

[Mike Pope]

I just tried 0.11.1 on a mac running yosemite. The usual users of that machine had already installed a java that describes itself as:

java version "1.6.0_65"
Java(TM) SE Runtime Environment (build 1.6.0_65-b14-466.1-11M4716)
Java HotSpot(TM) 64-Bit Server VM (build 20.65-b04-466.1, mixed mode)

I unzipped/tarred the FreeCol download for mac into the Applications directory and was able to launch FreeCol from there and play a few turns without incident. I therefore believe the problem is local to your machine as Caleb suggested.

[Andrej Schoeke]

Hi,

I encounter the same problem with the current version 0.11.3.

java version "1.6.0_65"
Java(TM) SE Runtime Environment (build 1.6.0_65-b14-466.1-11M4716)
Java HotSpot(TM) 64-Bit Server VM (build 20.65-b04-466.1, mixed mode)

➜ Java java -jar FreeCol.jar
Exception in thread "main" java.lang.UnsupportedClassVersionError: net/sf/freecol/FreeCol : Unsupported major.minor version 51.0

...

I am installing java 7 as we speak, but at least for me, it is not running out of the box either.

Cheers,
Andrej

[Update] Java 7 can't be installed on Macs if you have a newer version afaics.

[Andrej Schoeke]

With what version of java is the Mac version compiled?

[wintertime]

Java 1.6.x is not newer than 1.7.x. If you can not install 1.7 you should try 1.8, as the code requires 1.7 as a minimum (I dont know about Mac specifics).

[Andrej Schoeke]

@wintertime: The message was from the installer, that I can't install Java 7 as my currently used Java is newer.

I installed Java 8:
java version "1.8.0_45"
Java(TM) SE Runtime Environment (build 1.8.0_45-b14)
Java HotSpot(TM) 64-Bit Server VM (build 25.45-b02, mixed mode)

When I click FreeCol.app I still get the same message.

Trying to start from CLI:
➜ Downloads cd FreeCol.app/Contents/Resources/Java
...
[Loaded sun.net.www.protocol.jar.URLJarFile$URLJarFileEntry from /Library/Java/JavaVirtualMachines/jdk1.8.0_45.jdk/Contents/Home/jre/lib/rt.jar]
[Loaded java.util.HashMap$KeySet from /Library/Java/JavaVirtualMachines/jdk1.8.0_45.jdk/Contents/Home/jre/lib/rt.jar]
[Loaded java.util.HashMap$KeyIterator from /Library/Java/JavaVirtualMachines/jdk1.8.0_45.jdk/Contents/Home/jre/lib/rt.jar]
[Loaded net.sf.freecol.common.io.FreeColDirectories from file:/path/to/FreeCol.app/Contents/Resources/Java/FreeCol.jar]
Not a directory: data
[Loaded java.util.IdentityHashMap$KeySet from /Library/Java/JavaVirtualMachines/jdk1.8.0_45.jdk/Contents/Home/jre/lib/rt.jar]
[Loaded java.util.IdentityHashMap$IdentityHashMapIterator from /Library/Java/JavaVirtualMachines/jdk1.8.0_45.jdk/Contents/Home/jre/lib/rt.jar]
[Loaded java.util.IdentityHashMap$KeyIterator from /Library/Java/JavaVirtualMachines/jdk1.8.0_45.jdk/Contents/Home/jre/lib/rt.jar]

[Calebrw]

Are you installing the JDK version 1.8 (update 45 is current as of the this writing)?

http://www.oracle.com/technetwork/java/javase/downloads/jdk8-downloads-2133151.html

The Java SE Development Kit 8u45 should display a Mac OS X x64 file for you to download and install.

[wintertime]

You could try reading the mailing list archive, as there some people discussed the problem.
Or try one of the platform-neutral downloads?

[Michael Graf]

Hallo,

I have the same problems with the freecol-0.11.3-mac.tar.bz2.
I also receive the message "No compatible version of Java 1.7+ is available."
I am running osx 10.10.3.
The follwing java versions are installed on the system.
JDK 1.8u45 (oracle)
JRE 1.8u45 (oracle)
JRE 1.6u65 (apple)

I think the correct java version is installed, but the app package is not finding the oracle versions. I think this depends on the app package. The Java entrie inside the info.plist will be used by the programm /System/Library/Frameworks/JavaVM.framework/Versions/A/Resources/MacOS/JavaApplicationStub. This is an apple application, which is not knowing the oracle java versions.

I think the problems for mac users start with using java 1.7 for freecol

See also the entry MCL-1049 from Minecraft.
https://bugs.mojang.com/browse/MCL-1049?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

I can actually launching freecol from the console. Using freecol-0.11.3.zip with the freecol script. But I have to call "export JAVA_HOME=/usr/libexec/java_home -v 1.8*" before. If not java 1.6 will be used. I think the JDK must be installed, and the execution right must be set for the freecol script.

[Mythos]

if you still have the issue after updting to HighSierra do this.
Move your app to your Application folder
Open up a terminal screen

type xattr -cr and drag and drop your app to the terminal screen

It should be something like
xattr -cr/Applications/FreeCol/FreeCol.app
press Enter and here you go.