** Description changed: [Impact] Scilab does not start. This is a regression from an OpenJDK 11 update. SRU TEAM: please note that scilab runs OpenJDK 8 and since Bionic we have been forcing it to use OpenJDK 11 (see bug 1814133). Since the last Bionic and Focal update there have been fixes from both upstream and Debian to improve compatibility. Apart from those fixes I would like to bring additional fixes to our LTS releases and align them better with the one on Groovy (which works fine): * improved dependencies * appdata/desktop fixes to improve user experience * update from 6.0.1 to 6.0.2 in Bionic [Test Case] On Bionic or Focal: Steps to reproduce: 1. Install Scilab with `sudo apt-get install scilab` 2. Try to launch Scilab from terminal by using command `scilab` Expected results: * Scilab started normally Actual results: * Scilab does not start, shows the following output in the terminal: $ scilab Picked up _JAVA_OPTIONS: -Djava.class.path=/usr/share/java/flexdock.jar:/usr/share/java/skinlf.jar:/usr/share/java/looks.jar:/usr/share/java/commons-logging.jar:/usr/share/java/jhall.jar:/usr/share/java/lucene-core-4.10.4.jar:/usr/share/java/lucene-analyzers-common-4.10.4.jar:/usr/share/java/lucene-queryparser-4.10.4.jar:/usr/share/maven-repo/org/freehep/freehep-util/debian/freehep-util-debian.jar:/usr/share/maven-repo/org/freehep/freehep-io/debian/freehep-io-debian.jar:/usr/share/maven-repo/org/freehep/freehep-graphicsio/debian/freehep-graphicsio-debian.jar:/usr/share/java/freehep-graphicsio-emf-2.1.jar:/usr/share/java/freehep-graphics2d-2.1.1.jar:/usr/share/java/jrosetta-API.jar:/usr/share/java/jrosetta-engine-1.0.4.jar:/usr/share/java/jgraphx.jar:/usr/share/java/jogl2.jar:/usr/share/java/gluegen2-rt.jar:/usr/share/java/jeuclid-core.jar:/usr/share/java/jlatexmath-fop-1.0.7.jar:/usr/share/java/fop.jar:/usr/share/java/saxon.jar:/usr/share/java/batik.jar:/usr/share/java/xml-apis-ext.jar:/usr/share/java/commons-io.jar:/usr/share/java/xmlgraphics-commons.jar:/usr/share/java/avalon-framework.jar:/usr/share/java/jlatexmath-1.0.7.jar:/usr/share/java/ecj.jar:/usr/share/java/javax.activation.jar:/usr/share/java/jaxb-runtime.jar:/usr/share/scilab/modules/jvm/jar/org.scilab.modules.jvm.jar:/usr/share/scilab/modules/completion/jar/org.scilab.modules.completion.jar:/usr/share/scilab/modules/graphic_export/jar/org.scilab.modules.graphic_export.jar:/usr/share/scilab/modules/external_objects_java/tests/libintl.jar:/usr/share/scilab/modules/external_objects_java/jar/org.scilab.modules.external_objects_java.jar:/usr/share/scilab/modules/scirenderer/jar/scirenderer.jar:/usr/share/scilab/modules/action_binding/jar/org.scilab.modules.action_binding.jar:/usr/share/scilab/modules/history_manager/jar/org.scilab.modules.history_manager.jar:/usr/share/scilab/modules/console/jar/org.scilab.modules.console.jar:/usr/share/scilab/modules/graphic_objects/jar/org.scilab.modules.graphic_objects.jar:/usr/share/scilab/modules/xcos/jar/org.scilab.modules.xcos.jar:/usr/share/scilab/modules/commons/jar/org.scilab.modules.commons.jar:/usr/share/scilab/modules/graph/jar/org.scilab.modules.graph.jar:/usr/share/scilab/modules/gui/jar/org.scilab.modules.gui.jar:/usr/share/scilab/modules/renderer/jar/org.scilab.modules.renderer.jar:/usr/share/scilab/modules/helptools/jar/scilab_ja_JP_help.jar:/usr/share/scilab/modules/helptools/jar/scilab_fr_FR_help.jar:/usr/share/scilab/modules/helptools/jar/scilab_pt_BR_help.jar:/usr/share/scilab/modules/helptools/jar/scilab_ru_RU_help.jar:/usr/share/scilab/modules/helptools/jar/scilab_en_US_help.jar:/usr/share/scilab/modules/helptools/jar/scilab_images.jar:/usr/share/scilab/modules/helptools/jar/org.scilab.modules.helptools.jar:/usr/share/scilab/modules/types/jar/org.scilab.modules.types.jar:/usr/share/scilab/modules/localization/jar/org.scilab.modules.localization.jar:/usr/share/scilab/modules/javasci/jar/org.scilab.modules.javasci.jar:/usr/share/scilab/modules/preferences/jar/org.scilab.modules.preferences.jar:/usr/share/scilab/modules/core/jar/org.scilab.modules.core.jar:/usr/share/scilab/modules/history_browser/jar/org.scilab.modules.history_browser.jar:/usr/share/scilab/modules/ui_data/jar/org.scilab.modules.ui_data.jar:/usr/share/scilab/modules/scinotes/jar/org.scilab.modules.scinotes.jar: WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by org.scilab.modules.jvm.LibraryPath (file:/usr/share/scilab/modules/jvm/jar/org.scilab.modules.jvm.jar) to field java.lang.ClassLoader.sys_paths WARNING: Please consider reporting this to the maintainers of org.scilab.modules.jvm.LibraryPath WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Could not access to the Main Scilab Class: Exception in thread "main" java.lang.ExceptionInInitializerError at org.scilab.modules.localization.Messages.gettext(Unknown Source) at org.scilab.modules.commons.xml.XConfiguration.<clinit>(Unknown Source) at org.scilab.modules.core.Scilab.<clinit>(Unknown Source) Caused by: java.lang.NullPointerException at java.base/java.lang.ClassLoader.loadLibrary(ClassLoader.java:2646) at java.base/java.lang.Runtime.loadLibrary0(Runtime.java:830) at java.base/java.lang.System.loadLibrary(System.java:1870) at org.scilab.modules.localization.MessagesJNI.<clinit>(Unknown Source) ... 3 more Scilab cannot create Scilab Java Main-Class (we have not been able to find the main Scilab class. Check if the Scilab and thirdparty packages are available). [Regression Potential] Updating scilab fixes a regression introduced by a previous OpenJDK 11 update that prevented it from running. * The patch that fix the library path regression OpenJDK 11 might regress on a later if OpenJDK 11 changes how the library path is loaded. Additionally on Focal the update brings the following updates from Groovy: - * add missing runtime dependencies for 2 graphical libraries (libfreehep-graphicsio-java and libfreehep-util-java): + * add missing runtime dependencies for 2 graphical libraries (libfreehep-graphicsio-java and libfreehep-util-java) * fix desktop, appdata, and icons: this improves user experience, can regress or cause interference with custom files create by the user. - * make the classpath more flexible: makes the classpath less dependend on hard-coded versions, so when runtime dependencies are updated scilab still works: could regress if the debian jar gets updated to a new version with an incompatible API. - * update font dependencies from ttf-dejavu-core to fonts-dejavu-core: ttf-dejavu-core is a dummy transitional package that depends on fonts-dejavu-core so ttf-dejavu-core should already be installed when doing an update, can regress if the ttf-dejavu-core font path changes. + * make the classpath more flexible: makes the classpath less dependend on hard-coded versions, so when runtime dependencies are updated scilab still works, but could regress if the packaged jar gets updated to a new version with an incompatible API (unlikely on Focal). + * update font dependencies from ttf-dejavu-core to fonts-dejavu-core: ttf-dejavu-core is a dummy transitional package that depends on fonts-dejavu-core so ttf-dejavu-core should already be installed when doing an update, can regress if the ttf-dejavu-core font path changes (unlikely to happen on Focal). On Bionic, all the fixes above plus: - * Update from 6.0.1 to 6.0.2 drops a lot of the package patches that were applied upstream or fixed in some other way: this is a big change but brings various important fixes from 6.0.2 (which is the last stable release for 6.0) and allow us to drop various patches from debian/patches. That said, due to its size it can cause regressions so I will be watching for bugs (see Other Info section). + * Update from 6.0.1 to 6.0.2 drops a lot of debian/patches that were applied upstream or fixed in some other way. The diff is also big as they moved files from the package root into scilab/. This *is* a big change but brings various important fixes from 6.0.2 (which is the last stable release for 6.0). That said, regressions are expected, but so would I expect bug reports if simply fixing 6.0.1 and leaving all the 6.0.2 fixes behind. + And, just for the sake of argument, if anyone asks "why not update to 6.1 then as that would possibily fix even more bugs?" besides that obviously falling out of SRU definition, the answer is that such change does cause regressions for users because various scilab 'addons' don't yet support 6.1. We do gain from having 6.0 in Bionic and 6.1 in Focal as users can stay on the LTS distro that better supports their needs. * patch to support HDF5 1.10 on scilab 6.0 which is being tracked on bug 1765503 [Other Info] The foundations team worked with the security team on the OpenJDK 11 migration. Steve Beattie was involved. We got help approving changes from the SRU team member Lukasz Zemczak. I am subscribed to the package and will be keeping an eye on the scilab update. I do plan to investigate and fix bugs introduced by this SRU, specially on Bionic were we update from 6.0.1 to 6.0.2. + + Upstream claims that code and test quality is good, with unit and + regression tests being done as well as code coverage [1,2] but the + builds are not reacheable [3] and compilation chain [4] requires a + login. The bug tracker [5] has 80 open bugs for 6.0.1 (9 + blocker/critical) and 100 open bugs for 6.0.2 (7 blocker/critical). I + don't see any significant commits to the 6.0 branch [6] after 6.0.2 + release. + + References: + [1] https://www.scilab.org/about/scilab-open-source-software + [2] https://scan.coverity.com/projects/881 + [3] http://build.scilab.org/ + [4] http://compilationchain.scilab.org/ + [5] http://bugzilla.scilab.org + [6] http://gitweb.scilab.org/?p=scilab.git;a=shortlog;h=refs/heads/6.0 [From original report] ProblemType: Bug DistroRelease: Ubuntu 20.04 Package: scilab 6.1.0+dfsg1-1ubuntu3 ProcVersionSignature: Ubuntu 5.4.0-21.25-generic 5.4.27 Uname: Linux 5.4.0-21-generic x86_64 ApportVersion: 2.20.11-0ubuntu22 Architecture: amd64 CurrentDesktop: MATE Date: Sat Apr 4 19:12:56 2020 InstallationDate: Installed on 2020-04-04 (0 days ago) InstallationMedia: Ubuntu-MATE 20.04 LTS "Focal Fossa" - Beta amd64 (20200402) PackageArchitecture: all SourcePackage: scilab UpgradeStatus: No upgrade log present (probably fresh install)
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