[solved] Eclipse IDE not finding a proper WebKit GTK

Message

acarstoiu · Post by **acarstoiu** » Wed Jun 21, 2023 5:15 pm

I have installed a minimal Eclipse IDE (the Eclipse Platform) by manually unzipping the downloaded tarball in /opt. It starts nicely, without any tweaks. But I cannot make the internal web browser work, in spite of having installed net-libs/webkit-gtk-2.40.2-r600. This is the exception I get:

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No more handles because there is no underlying browser available.
Please ensure that WebKit with its GTK 3.x/4.x bindings is installed.
org.eclipse.swt.SWTError: No more handles because there is no underlying browser available.
Please ensure that WebKit with its GTK 3.x/4.x bindings is installed.
	at org.eclipse.swt.SWT.error(SWT.java:4944)
	at org.eclipse.swt.browser.Browser.<init>(Browser.java:119)
	at org.eclipse.ui.internal.browser.BrowserViewer.<init>(BrowserViewer.java:239)
	at org.eclipse.ui.internal.browser.WebBrowserView.createPartControl(WebBrowserView.java:51)

Relevant Eclipse documentation: https://www.eclipse.org/swt/faq.php#browserlinux
The Gentoo package seems to depend on both GTK-4 and GTK+-3

:

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# equery depgraph --depth 1 webkit-gtk-2.40.2-r600
* Searching for webkit-gtk2.40.2-r600 ...

* dependency graph for net-libs/webkit-gtk-2.40.2-r600
`--  net-libs/webkit-gtk-2.40.2-r600  amd64
`--  x11-libs/cairo-1.17.8  (>=x11-libs/cairo-1.16.0) amd64  [X?]
`--  media-libs/fontconfig-2.14.2-r2  (>=media-libs/fontconfig-2.13.0) amd64
`--  media-libs/freetype-2.13.0  (>=media-libs/freetype-2.9.0) amd64
`--  dev-libs/libgcrypt-1.10.1-r3  (>=dev-libs/libgcrypt-1.7.0) amd64
`--  x11-libs/gtk+-3.24.37  (>=x11-libs/gtk+-3.22.0) amd64  [aqua? introspection? wayland? X?]
`--  gui-libs/gtk-4.10.3  (gui-libs/gtk) amd64

Present WebKit libraries:

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# locate libwebkit
/usr/lib64/libwebkitgtk-6.0.so
/usr/lib64/libwebkitgtk-6.0.so.4
/usr/lib64/libwebkitgtk-6.0.so.4.0.3
/usr/lib64/webkitgtk-6.0/injected-bundle/libwebkitgtkinjectedbundle.so

Post by **fedeliallalinea** » Wed Jun 21, 2023 5:33 pm

Try to install net-libs/webkit-gtk:4.1.

logrusx · Post by **logrusx** » Wed Jun 21, 2023 7:13 pm

fedeliallalinea wrote:Try to install net-libs/webkit-gtk:4.1.

Wrong. Eclipse can only use webkit-gtk:4

Best Regards,
Georgi

CaptainBlood · Post by **CaptainBlood** » Thu Jun 22, 2023 5:38 am

Just launched eclipse-bin-4.27 from console as in

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user@amd64 ~ $ eclipse-bin-4.27
Picked up _JAVA_OPTIONS: -Xmx1g
10:19:41.735 [main] DEBUG org.eclipse.m2e.core.internal.project.registry.ProjectRegistryRefreshJob - Queued refresh request: []

with

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eix webkit-gtk
[U] net-libs/webkit-gtk
     Available versions:  
     (4)    2.40.1(4/37)^t 2.40.2(4/37)^t
     (4.1)  2.40.1-r410(4.1/0)^t 2.40.2-r410(4.1/0)^t
     (6)    2.40.1-r600(6/0)^t 2.40.2-r600(6/0)^t
       {X aqua avif examples gamepad gles2-only +gstreamer +introspection +jpeg2k +jumbo-build keyring lcms pdf seccomp spell systemd wayland}
     Installed versions:  2.40.2-r410(4.1/0)^t(03:03:52 13/06/2023)(X gles2-only introspection jumbo-build seccomp wayland -aqua -avif -examples -gamepad -gstreamer -jpeg2k -keyring -lcms -pdf -spell -systemd)

Matching ebuild:

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/var/db/repos/local-repo/dev-util/eclipse-sdk-bin/eclipse-sdk-bin-4.27.0.ebuild



# Copyright 1999-2023 Gentoo Authors
# Distributed under the terms of the GNU General Public License v2

EAPI=7

inherit eutils desktop

SR="R"
RNAME="2023-03"

SRC_BASE="https://www.eclipse.org/downloads/download.php?file=/technology/epp/downloads/release/${RNAME}/${SR}/eclipse-java-${RNAME}-${SR}-linux-gtk"

DESCRIPTION="Eclipse SDK"
HOMEPAGE="http://www.eclipse.org"
SRC_URI="amd64? ( ${SRC_BASE}-x86_64.tar.gz&r=1 -> eclipse-java-${RNAME}-${SR}-linux-gtk-x86_64-${PV}.tar.gz )"

LICENSE="EPL-1.0"
SLOT="4.27"
KEYWORDS="~x86 ~amd64"
IUSE=""

RDEPEND="
        >=virtual/jdk-1.8
        x11-libs/gtk+:2"

S=${WORKDIR}/eclipse

src_install() {
        local dest=/opt/${PN}-${SLOT}

        insinto ${dest}
        doins -r features icon.xpm plugins artifacts.xml p2 eclipse.ini configuration dropins

        exeinto ${dest}
        doexe eclipse

        docinto html
        dodoc -r readme/*

        cp "${FILESDIR}"/eclipserc-bin-${SLOT} "${T}" || die
        cp "${FILESDIR}"/eclipse-bin-${SLOT} "${T}" || die
        sed "s@%SLOT%@${SLOT}@" -i "${T}"/eclipse{,rc}-bin-${SLOT} || die

        insinto /etc
        newins "${T}"/eclipserc-bin-${SLOT} eclipserc-bin-${SLOT}

        newbin "${T}"/eclipse-bin-${SLOT} eclipse-bin-${SLOT}
        make_desktop_entry "eclipse-bin-${SLOT}" "Eclipse ${PV} (bin)" "${dest}/icon.xpm"
}

likely lacking many dependencies.

EDIT: for consistency

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user@amd64 ~ $ for i in eclipse-bin-4.27 eclipserc-bin-4.27; do echo ----------------------;echo $i;echo ----------------------; cat /var/db/repos/local-repo/dev-util/eclipse-sdk-bin/files/$i; done
----------------------
eclipse-bin-4.27
----------------------
#! /bin/sh
#
# Tiny startup wrapper for Eclipse
#
# Copyright (c) 2004, Karl Trygve Kalleberg <karltk@gentoo.org>
# Copyright (c) 2007-2008, Jean-Noël Rivasseau <elvanor@gentoo.org>
# Copyright (c) 2004-2008, Gentoo Foundation
#
# Licensed under the GNU General Public License, version 2
#

SLOT="%SLOT%"

[ -f "/etc/eclipserc-bin-${SLOT}" ] && . "/etc/eclipserc-bin-${SLOT}"
[ -f "$HOME/gentoo/.eclipserc" ] && . "$HOME/gentoo/.eclipserc"

ECLIPSE_HOME=${ECLIPSE_HOME:="/opt/eclipse-sdk-bin-%SLOT%"}
ECLIPSE_BIN="${ECLIPSE_HOME}/eclipse"

if [ ! -x "${ECLIPSE_BIN}" ] ; then
	echo "Failed to find executable '${ECLIPSE_BIN}'" > /dev/stderr
	exit 1
fi

if [ $(id -u) -eq 0 ] ; then
	echo "Do not run eclipse as root user! Exiting ..." > /dev/stderr
	exit 1
fi

case "$(java-config -f)" in
	*gcj*)
		export JAVA_PKG_CLASSMAP="${ECLIPSE_HOME}/eclipse.gcjdb"
		;;
esac

#eval $(gjl --package "swt-${SLOT}" --get-args)

[ -n "${ECLIPSE_XMS}" ] && VM_ARGS="${VM_ARGS} -Xms${ECLIPSE_XMS}"
[ -n "${ECLIPSE_XMX}" ] && VM_ARGS="${VM_ARGS} -Xmx${ECLIPSE_XMX}"
[ -n "${ECLIPSE_PERMSIZE}" ] && VM_ARGS="${VM_ARGS} -XX:PermSize=${ECLIPSE_PERMSIZE}"
[ -n "${ECLIPSE_MAX_PERMSIZE}" ] && VM_ARGS="${VM_ARGS} -XX:MaxPermSize=${ECLIPSE_MAX_PERMSIZE}"

# Fix for JRE 1.5.
export LD_LIBRARY_PATH=${LD_LIBRARY_PATH}:/usr/lib

exec "${ECLIPSE_BIN}" -vm $(java-config --java) "$@" "${ECLIPSE_USER_ARGS}" -vmargs ${VM_ARGS} 
----------------------
eclipserc-bin-4.27
----------------------
# This file specifies some initial Eclipse settings, like memory allowed
# These settings only affect Eclipse startup and overall configuration
# Main Eclipse configuration should be done within Eclipse (with the GUI)

# Following variables controls the minimal and maximum amounts of memory
# allocated to Eclipse (respectively).
# Increase those numbers if you get OutOfMemory errors.

ECLIPSE_XMS=128m
ECLIPSE_XMX=256m

# Following variables controls the minimal and maximum amounts of memory
# allocated to the permanent generation space.
# This space contains data related to all classes.
# Thus, if you use a lot of Eclipse plugins, it is recommended to uncomment
# these variables and even increase it, if you have enough RAM.
# Else you will get crashes related to OutOfMemory in PermGen exceptions. 

#ECLIPSE_PERMSIZE=64m
#ECLIPSE_MAX_PERMSIZE=128m

Hope it helps.

Thks 4 ur attention, interest & support

logrusx · Post by **logrusx** » Thu Jun 22, 2023 5:56 am

CaptainBlood wrote: Hope it helps.

This is not the way to go.

Eclipse just wasn't meant to be managed by portage. The solution is to emerge webkit-gtk 4/37 and download an eclipse distribution in your home directory. And swallow the headaches of Eclipse's crappy packaging and update system.

Please don't confuse users with custom ebuilds.

acarstoiu wrote: The Gentoo package...

There is no Gentoo package and there likely won't be. The overlay you likely got that ebuild from hasn't been touched for 2 years.

Best Regards,
Georgi

CaptainBlood · Post by **CaptainBlood** » Thu Jun 22, 2023 6:19 am

logrusx wrote:
CaptainBlood wrote: Hope it helps.
This is not the way to go.

I guess you know what you're talking about.
Nevertheless launching eclipse here with only net-libs/webkit-gtk:4.1 installed with no complain in console.

I may be totally mistaking though.

Only posted ebuild as I'm not sure java flavor installed here matches the one from the OP.

Thks 4 ur attention, interest & support

logrusx · Post by **logrusx** » Thu Jun 22, 2023 6:25 am

CaptainBlood wrote:
logrusx wrote:
CaptainBlood wrote: Hope it helps.
This is not the way to go.
I guess you know what you're talking about.
Nevertheless launching eclipse here with only net-libs/webkit-gtk:4.1 installed with no complain in console.

I may be totally mistaking though.

Only posted ebuild as I'm not sure java flavor installed here matches the one from the OP.

Thks 4 ur attention, interest & support

It's not about eclipse complaining in console, it's about the SWT browser widget only working with webkit-gtk:4. It's not a big deal actually, because without webkit-gtk only the links are not working and in the same time webkit-gtk consumes huge amount of memory. This whole thing is crappy as hell as everything conceived by IBM.

Best Regards,
Georgi

Post by **fedeliallalinea** » Thu Jun 22, 2023 6:33 am

logrusx wrote:Wrong. Eclipse can only use webkit-gtk:4

But you installed net-libs/webkit-gtk:6

logrusx · Post by **logrusx** » Thu Jun 22, 2023 9:10 am

fedeliallalinea wrote:
logrusx wrote:Wrong. Eclipse can only use webkit-gtk:4
But you installed net-libs/webkit-gtk:6

Please don't add more confusion. The question has been answered already.

Best Regards,
Georgi

acarstoiu · Post by **acarstoiu** » Thu Jun 22, 2023 1:07 pm

logrusx wrote:
acarstoiu wrote: The Gentoo package...
There is no Gentoo package and there likely won't be. The overlay you likely got that ebuild from hasn't been touched for 2 years.
Georgi

You're missing the point, I was talking about the webkit-gtk package, I even quoted the command line, so there would be no confusion. I also explained that I have manually extracted the software in /opt, so no ebuild could have been used

Anyway, thanks for the help, everyone - I'll test and report back. I'm also interested in the why, what is Eclipse expecting and doesn't find

logrusx · Post by **logrusx** » Thu Jun 22, 2023 2:11 pm

You need to emerge webkit-gtk:4/37. This is the only webkit-gtk eclipse can currently find. It is not webkit-gtk's problem.
EDIT: just tested 4.1 and I owe @fedeliallalinea an apology. It works.

To my knowledge the problem comes from the fact that Eclipse supports gtk 3 only, I don't remember details. I just know that this version will work for you because it works for me. Also it has different ABI from the other 2 available in tree. That's why it's slotted and subslotted. That's why Eclipse will only work with it.

EDIT2: eclipse looks for libwebkit2gtk 4.0.so.37 and 4.1.so.0 (where the slot and subslot numers come from), webkit-gtk:6 has libwebkitgtk-6.so.0. Eclipse still seem to not support it. A couple of months ago it didn't even support 4.1 either.

Best Regards,
Georgi

acarstoiu · Post by **acarstoiu** » Fri Jun 23, 2023 9:18 am

Yes, it worked after

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emerge net-libs/webkit-gtk:4.1

Thanks