When ever i try to open a JAVA .jar file, it says, "The Java JAR file could not be launched. Check the console for possible error messages" Pleeasse help someone. I also have the latest version of Java.
MacBook Pro, OS X Mavericks (10.9.1)
Hi Melophage,
I think I am facing the same problems. I have recently updated my Macbook Pro to MaC Sierra, and since I have updated I am unable to launch this jar.
Earlier I was able to install the sqljdbc.42 jar on my system so that I can connect to MySQL Database. But since I have updated the OS, I am unable to launch the jar, which work as driver, which is required to connect to MySQL database.
I have followed the steps mentioned above, and here are the snapshots.
I think you should be able to help me with this.
Looking forward to your support
James_Black,
have you checked the Java console for possible error messages?
Yeah, Java or .jar was not mentioned anywhere. I also remember going on a chat with apple and when we screen shared, we went into the console and it said something weird. This is what it said when I most recently opened it, and the error message is and the original error message is up the top.
James_Black,
is that a picture of the OS X Console, or of the Java console?
Have you searched your disk for a file with “1.7.4.jar” in its name?
Melophage,
thats the os x console and when you say disk, do you mean disk utility?
Any suggestions?
James_Black,
have you checked the Java console rather than the OS X Console for possible error messages?
When I stated “disk” above, I was referring to your internal hard drive (or internal SSD). Have you searched your internal hard drive or SSD for a file with “1.7.4.jar” in its name?
Melophage,
apparantly there is no other way in opening up your java console besides opening a website that has java on it, so I opened up "Danball". The console has no error messages that I am aware of.Maybe there's one you're aware of.
Does the console show anything helpful?
I do not know how to search my internal SSD, if you could teach me how that would be great.
James_Black,
if you open the Java pane of System Preferences, it will open a Java Control Panel window. Click on that window’s Advanced tab; it will show a series of radio buttons. One of them is titled “Java console”; make sure that its “Show console” button is selected.
To search your internal SSD, try using Spotlight by clicking on the magnifying glass icon near the right-hand side of your menu bar. (I have Spotlight disabled on my MacBook Pro, but by default it is installed enabled, so it should be available on your MacBook Pro.)
Melophage, I had previously turned on "Show Console", and the screenshot above is the result for whenever I enter a Java Plugin Website.
Also, I had searched my spotlight before and there was no result for "Internal hardrive" or "Internal SSD"
Melophage, I just went into my OS X Console and searched Java. This was the result and i dropped down al the arrows:
Hopefully this helps.
James_Black,
I did not ask whether you had searched your internal SSD using Spotlight for a file named “Internal hardrive” or “Internal SSD”; I had asked whether you had searched your internal SSD using Spotlight for a file with “1.7.4.jar” in its name.
Regarding the messages with “java” in the OS X Console, try running the following commands inside of Terminal: they will let me compare the two files that are installed on your internal SSD with the same files on mine.
cd '/Library/Internet Plug-Ins/JavaAppletPlugin.plugin'
cd Contents/Home
ls -l bin/java lib/jli/libjli.dylib
cksum bin/java lib/jli/libjli.dylib
Please include in your reply the full output from the ls and cksum commands.
Melophage,
If I type "ls -l" this is what comes up:
total 0
drwx------ 3 jamesbaartz staff 102 23 Feb 14:03 Applications
drwx------+ 6 jamesbaartz staff 204 2 Mar 21:26 Desktop
drwx------+ 8 jamesbaartz staff 272 1 Mar 15:16 Documents
drwx------+ 57 jamesbaartz staff 1938 2 Mar 19:17 Downloads
drwx------@ 49 jamesbaartz staff 1666 2 Mar 17:42 Library
drwx------+ 3 jamesbaartz staff 102 19 Feb 20:47 Movies
drwx------+ 6 jamesbaartz staff 204 2 Mar 18:03 Music
drwx------+ 5 jamesbaartz staff 170 26 Feb 09:51 Pictures
drwxr-xr-x+ 5 jamesbaartz staff 170 19 Feb 20:47 Public
If I type "cksum" instead of the title bar being jamesblack - bash - 80x24, it changes to jamesblack - cksum - 80x24, thats all. and when I close terminalit says it will "terminate the running process: cksum"
Am I doing anything wrong?
James_Black,
you are not entering exact copies of the ls and cksum commands which I’d provided directly undeneath of the cd commands in my previous posting. Please enter them exactly as they were posted.
James_Black,
you need to enter the cd commands before you can enter the ls and cksum commands. Please enter the four commands in the order that they were given, exactly as they were given.
I cant open a Java .jar file, "Check console for possible error messages"
