Not able to open or visualize S3 products in SNAP8

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1

Hello,
I am having troubles in opening S3 data in SNAP8.
Following error message pops up:

A java.lang.IncompatibleClassChangeError exception has ocurred.

With following details:

java.lang.IncompatibleClassChangeError: Class ucar.nc2.Variable does not implement the requested interface ucar.nc2.VariableIF
at org.esa.s3tbx.dataio.s3.util.S3VariableOpImage.computeRect(S3VariableOpImage.java:70)
at javax.media.jai.SourcelessOpImage.computeTile(Unknown Source)
at com.sun.media.jai.util.SunTileScheduler.scheduleTile(Unknown Source)
at javax.media.jai.OpImage.getTile(Unknown Source)
at javax.media.jai.PlanarImage.getData(Unknown Source)
at org.esa.snap.core.image.VirtualBandOpImage.addDataToReferredRasterDataSymbols(VirtualBandOpImage.java:307)
at org.esa.snap.core.image.VirtualBandOpImage.computeTile(VirtualBandOpImage.java:235)
at com.sun.media.jai.util.SunTileScheduler.scheduleTile(Unknown Source)
at javax.media.jai.OpImage.getTile(Unknown Source)
at com.sun.media.jai.util.SunTileScheduler.compute(Unknown Source)
at com.sun.media.jai.util.TileJob.compute(Unknown Source)
[catch] at com.sun.media.jai.util.WorkerThread.run(Unknown Source)

Some products are opened (appear in the Product Explorer), but I cannot visualize them:

Failed to open image view.
java.lang.IncompatibleClassChangeError: Class ucar.nc2.Variable does not implement the requested interface ucar.nc2.VariableIF.

Something went wrong with the installation of SNAP8?
Before I was running SNAP7 without problems (CentOS Linux 64-bit, 32GB RAM).

Thanks in advance for your help.

2

Same problem here, with an almost identical error message when opening S3 Synergy in SAFE format by clicking on the manifest file after upgrading to 8.0 (current as of today):

 java.lang.RuntimeException: Waiting thread received a null tile.
	at com.sun.media.jai.util.SunTileScheduler.scheduleTile(Unknown Source)
	at javax.media.jai.OpImage.getTile(Unknown Source)
	at javax.media.jai.PlanarImage.getData(Unknown Source)
	at org.esa.snap.core.image.VirtualBandOpImage.addDataToReferredRasterDataSymbols(VirtualBandOpImage.java:307)
[catch] at org.esa.snap.core.image.VirtualBandOpImage.computeTile(VirtualBandOpImage.java:235)
	at com.sun.media.jai.util.SunTileScheduler.scheduleTile(Unknown Source)
	at javax.media.jai.OpImage.getTile(Unknown Source)
	at com.sun.media.jai.util.SunTileScheduler.compute(Unknown Source)
	at com.sun.media.jai.util.TileJob.compute(Unknown Source)
	at com.sun.media.jai.util.WorkerThread.run(Unknown Source)
3

I’ve replied in a related thread.

4

Hi, I have

  • unistalled snap & all user data using the snap-8 uninstall script,
  • then realized, that updates are stored in the directory of the user doing the update,
  • manually removed ${HOME}/.snap
  • reinstalled snap-8 as root.
    The result is: I can open Sentinel-3 SY-2-SYN products in SAFE format by clicking on the manifest file again. I cannot speak for the original poster, but my issue is solved (and also the re-post here https://forum.step.esa.int/t/error-opening-s3-syn-safe-format-with-snap-v8/27456. Thank you!
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