[Dataexplorer-help] Java issues - MacOS High Sierra

[Rob Dover]

Greetings

I have DataExplorer installed and working fine on a Windows 7 box but I am now trying to get it going on a Macbook Pro. The OS is High Sierra 10.13.6.

It installed fine but when I tried running it, it would give me an error about requiring the JDK. I then installed Java V8 build 171 from Java.com. DataExplorer would not recognize that and still gave me the same error. A bit of research and I found JavaforOSX on Apples site and installed that. Now when I launch DataExplorer from the Finder, it launches but self terminates immediately. If I launch it from a Terminal session I get the following errors:

./DataExplorerMac64 

java -XstartOnFirstThread -d64 -Dfile.encoding=UTF-8 -jar -Xms64m -Xmx3092m ./DataExplorer.jar

Exception in thread "Thread-1" java.lang.UnsupportedClassVersionError: gde/GDE : Unsupported major.minor version 52.0

at java.lang.ClassLoader.defineClass1(Native Method)

at java.lang.ClassLoader.defineClassCond(ClassLoader.java:637)

at java.lang.ClassLoader.defineClass(ClassLoader.java:621)

at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:141)

at java.net.URLClassLoader.defineClass(URLClassLoader.java:283)

at java.net.URLClassLoader.access$000(URLClassLoader.java:58)

at java.net.URLClassLoader$1.run(URLClassLoader.java:197)

at java.security.AccessController.doPrivileged(Native Method)

at java.net.URLClassLoader.findClass(URLClassLoader.java:190)

at java.lang.ClassLoader.loadClass(ClassLoader.java:306)

at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)

at java.lang.ClassLoader.loadClass(ClassLoader.java:247)

java -version returns

java version "1.6.0_65"

Java(TM) SE Runtime Environment (build 1.6.0_65-b14-468)

Java HotSpot(TM) 64-Bit Server VM (build 20.65-b04-468, mixed mode)

I tried reinstalling V8-171 but still have the same issue and version still returns 1.6.0_65.

I also tried "java -Dfile.encoding=UTF-8 -jar ./DataExplorer.jar” as suggested on the project page but get "Unable to access jarfile ./DataExplorer.jar”. 

I’m suspecting it doesn’t like Java 1.6.0_65 but can’t figure out how to get it use V8.

I must be overlooking something but at the moment I’m out of ideas. Any suggestions welcome.

TIA

-Rob-