From fe416622026b9d2e0ddcaf8a17da49f9d3ede97f Mon Sep 17 00:00:00 2001
From: Hannes Wellmann <wellmann.hannes1@gmx.net>
Date: Mon, 28 Aug 2023 21:26:28 +0200
Subject: [PATCH] Unconfigure slf4j.simple when m2e.logback.feature is
 installed

Disable slf4j.simple when present during the installation of the
m2e.logback feature.
This prevents warnings about multiple slf4j providers found in the
runtime and the potential to have slf4j.simple being selected as
provider in use.
---
 org.eclipse.m2e.logback.feature/p2.inf | 24 ++++++++++++++++++++++++
 1 file changed, 24 insertions(+)

diff --git a/org.eclipse.m2e.logback.feature/p2.inf b/org.eclipse.m2e.logback.feature/p2.inf
index 0280a43ebe..fc9ea2f76f 100644
--- a/org.eclipse.m2e.logback.feature/p2.inf
+++ b/org.eclipse.m2e.logback.feature/p2.inf
@@ -4,6 +4,11 @@ requires.0.namespace=org.eclipse.equinox.p2.iu
 requires.0.name=configure.logback.classic
 requires.0.range=[$version$,$version$]
 requires.0.greedy=true
+requires.1.namespace=org.eclipse.equinox.p2.iu
+requires.1.name=unconfigure.slf4j.simple
+requires.1.range=[$version$,$version$]
+requires.1.greedy=true
+requires.1.optional=true
 
 #Create a IU fragment named configure.logback.classic
 units.0.id=configure.logback.classic
@@ -23,3 +28,22 @@ units.0.hostRequirements.0.namespace=osgi.bundle
 units.0.hostRequirements.0.name=ch.qos.logback.classic
 units.0.hostRequirements.0.range=[1.3,1.6)
 units.0.hostRequirements.0.greedy=false
+
+#Create a IU fragment named unconfigure.slf4j.simple
+units.1.id=unconfigure.slf4j.simple
+units.1.version=$version$
+units.1.provides.0.namespace=org.eclipse.equinox.p2.iu
+units.1.provides.0.name=unconfigure.slf4j.simple
+units.1.provides.0.version=$version$
+units.1.instructions.install=org.eclipse.equinox.p2.touchpoint.eclipse.installBundle(bundle:${artifact});
+units.1.instructions.uninstall=org.eclipse.equinox.p2.touchpoint.eclipse.uninstallBundle(bundle:${artifact});
+units.1.instructions.configure= \
+  org.eclipse.equinox.p2.touchpoint.eclipse.setStartLevel(startLevel:-1); \
+  org.eclipse.equinox.p2.touchpoint.eclipse.markStarted(started:false);
+units.1.instructions.unconfigure= \
+  org.eclipse.equinox.p2.touchpoint.eclipse.setStartLevel(startLevel:2); \
+  org.eclipse.equinox.p2.touchpoint.eclipse.markStarted(started:true);
+units.1.hostRequirements.0.namespace=osgi.bundle
+units.1.hostRequirements.0.name=slf4j.simple
+units.1.hostRequirements.0.range=[2.0,3.0)
+units.1.hostRequirements.0.greedy=false