[Geoserver-devel] [JIRA] (GEOS-9143) ImageMmosaic 2.13.3-2.15.0 transparent area overlaps with other geotiff making blank space

GeoServer GeoServer Developer
1

Łukasz Bocianiak created an issue

GeoServer / BugGEOS-9143

ImageMmosaic 2.13.3-2.15.0 transparent area overlaps with other geotiff making blank space

Issue Type:

BugBug

Affects Versions:

2.13.3, 2.15.0

Assignee:

Unassigned

Attachments:

sample1.tif, sample2.tif

Components:

image mosaic

Created:

09/Mar/19 1:11 AM

Environment:

Ubuntu 15.10 + JDK8 + Tomcat 8 + Geoserver 2.13.3
Ubuntu 15.10 / Ubuntu 18.04 + OpenJDK11 + Tomcat 9 + Geoserver 2.15.0

Priority:

MediumMedium

Reporter:

Łukasz Bocianiak

Hi,

this is a copy of:
https://gis.stackexchange.com/questions/313758/geoserver-2-13-3-2-15-0-imagemosaic-blank-transparent-spaces-with-overlapping
and
http://osgeo-org.1560.x6.nabble.com/Geosrever-2-13-3-2-15-0-ImageMosaic-overlapping-transparent-from-alpha-band-td5397109.html

I’m migrating from OracleJDK1.7/Geoserver2.8.3 to OpenJDK11/GeoServer2.15.0,
and have issues with ImageMosiac layers. In short words - can’t configure
two geotiffs to glue together where they overlap.

Tried and searched everything, installed 10 versions of Geoserver and
figured out it stopped working in Geoserver 2.13.3 (GeoTools 19.3). In
GeoTools release notes I found that some transparency issues were fixed
then, but it stopped working for me.

I understand that I have alpha band in my files, not “no data” so popular
problems with no-data and enabling JAI-EXT, setting transparency color is
not the problem/solution.

It works fine with no configuration (just clean geoserver install, create
store and publish layer, only set names) with JAVA8 / Geoserver 2.8.3,
2.12.5., 2.13.0, 2.13.2 but not 2.13.3 and next releases.

Attached sample tiffs

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