Datastax DevCenter freezes on startup

Without downgrade the Java version

Scenario

I couldn't create any connection and press buttons and everything was frozen; Changing the swt plugin in the DevCenter plugin folder worked. This was my configuration:

  • DevCenter version DevCenter-1.6.0-macosx-x86_64
  • Mac OSX version 10.14.6
  • JDK Version jdk1.8.0_231.jdk

Steps to fix it

  1. From here download the version 3.108.0. (This version works for me)
  2. Rename the file downloaded as swt.jar (short name)
  3. [Optionally] create a backup of the current swt plugin jar of the DevCenter
cp DevCenter/DevCenter.app/plugins/org.eclipse.swt.cocoa.macosx.x86_64_3.103.2.v20150203-1351.jar ~/Desktop
  1. Replace the plugin with the swt.jar downloaded
mv swt.jar DevCenter/DevCenter.app/plugins/org.eclipse.swt.cocoa.macosx.x86_64_3.103.2.v20150203-1351.jar
  1. Startup DevCenter

Finally it worked

Evidence


On OSX, you can specify which version of Java DevCenter uses so that you do not need to downgrade your global Java version.

  • Right-click on Devcenter.app
  • Click "show package contents"
  • Open Contents/info.plist
  • At the bottom of the file, there's an Eclipse key with lines commented out explaining how to specify the version of Java. Uncomment the line and specify the version of Java that you want DevCenter to use.
  • Save & Re-launch DevCenter

The updated info.plist file should look something like this:

<key>Eclipse</key>

    <array>
            <string>-vm</string><string>/Library/Java/JavaVirtualMachines/1.6.0.jdk/Contents/Home/bin/java</string>
    </array>

I reached out to someone at Datastax and learnt that complaints have surfaced about this behavior when using DevCenter with jdk 8u152.

For now, I've downgraded to jdk 8u151 and that fixes the issue.

Tags:

Cql

Datastax

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