diff --git a/.github/workflows/main.yaml b/.github/workflows/main.yaml
index e63951ff12..4599dcd0b8 100644
--- a/.github/workflows/main.yaml
+++ b/.github/workflows/main.yaml
@@ -82,43 +82,23 @@ jobs:
         run: c2cciutils-checks
 
       - run: make build
-      - run: make acceptance-tests-up
-      - run: make acceptance-tests-run
-
-        # Extract artifacts
-      - run: docker run --rm --detach --name=builder mapfish_print_builder || true
-        if: always()
-      - run: docker cp builder:/src/core/build/ core/build/ || true
-        if: always()
-      - run: ls -l core/build/distributions
-        if: always()
-
-      - run: docker cp mapfish-print_tests_1:/src/examples/build/ examples/build/ || true
-        if: always()
-
-      - run: c2cciutils-docker-logs || true
+      - run: make checks
+      - run: cat .github/workflows/main.yaml
         if: failure()
+      - run: make tests
 
-      - run: mkdir -p core/build/resources/actual examples/build/reports core/build/reports examples/build/resources/test/examples
-        if: always()
       - uses: actions/upload-artifact@v3
         with:
           name: Test results
-          path: core/build/resources/
+          path: core/build/resources/test/org/mapfish/print/
           if-no-files-found: ignore
         if: failure()
-      - uses: actions/upload-artifact@v3
-        with:
-          name: Reports examples
-          path: examples/build/reports
-          if-no-files-found: ignore
-        if: failure()
-      - uses: actions/upload-artifact@v3
-        with:
-          name: Reports core
-          path: core/build/reports
-          if-no-files-found: ignore
+
+      - run: make acceptance-tests-up
+      - run: make acceptance-tests-run
+      - run: c2cciutils-docker-logs || true
         if: failure()
+
       - uses: actions/upload-artifact@v3
         with:
           name: Examples
@@ -126,17 +106,6 @@ jobs:
           if-no-files-found: ignore
         if: failure()
 
-      - name: Collect test results
-        run: |
-          mkdir -p /tmp/test_results/junit
-          find . -name '*TEST-*.xml' -exec cp -v {} /tmp/test_results/junit/ \;
-        if: failure()
-      - uses: actions/upload-artifact@v3
-        with:
-          name: Test results
-          path: /tmp/test_results
-        if: failure()
-
       - name: Publish
         run: c2cciutils-publish
         if: env.HAS_SECRETS == 'HAS_SECRETS'
diff --git a/Dockerfile b/Dockerfile
index 3c141c3a3d..2c1bcba11d 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -3,44 +3,38 @@ FROM gradle:8.1.1-jdk11 AS builder
 RUN --mount=type=cache,target=/var/cache,sharing=locked \
     --mount=type=cache,target=/root/.cache \
   apt-get update && \
-  apt-get install --yes --no-install-recommends fonts-liberation gettext curl && \
-  gradle --version
+  apt-get install --yes --no-install-recommends fonts-liberation gettext curl
 
 WORKDIR /src
 
+ENV GRADLE_OPTS=-Dorg.gradle.daemon=false
+
+RUN --mount=type=cache,target=/home/gradle/.gradle \
+  gradle --version
+
 COPY gradle/ ./gradle/
-COPY gradle.properties build.gradle settings.gradle CI.asc ./
+COPY gradle.properties build.gradle settings.gradle CI.asc checkstyle_* ./
 COPY examples/build.gradle ./examples/
 COPY docs/build.gradle ./docs/
 COPY publish/build.gradle ./publish/
 COPY core ./core
-
-RUN --mount=type=cache,target=/home/gradle/.gradle \
-   gradle :core:processResources :core:classes
-COPY checkstyle_* ./
-# '&& touch success || true' is a trick to be able to get out some artifacts
-RUN --mount=type=cache,target=/home/gradle/.gradle \
-   (gradle :core:checkstyleMain :core:spotbugsMain :core:violations --stacktrace) \
-   && ( (gradle :core:build :core:explodedWar :core:libSourcesJar :core:libJavadocJar > /tmp/logs 2>&1 && touch success) || true)
+COPY publish ./publish
+COPY examples ./examples
+COPY docs ./docs
 
 ARG GIT_HEAD
 ENV GIT_HEAD=${GIT_HEAD}
 
-COPY publish ./publish
-
+# Exclude the tasks that will run our of the docker build (in a docker run)
 RUN --mount=type=cache,target=/home/gradle/.gradle \
-   ([ -e success ] && ( (gradle :publish:build >> /tmp/logs 2>&1) && touch success-publish)) || true
+   gradle --exclude-task=:core:test --exclude-task=:core:spotbugsMain --exclude-task=:core:checkstyleMain \
+   :core:build :core:explodedWar :publish:build :examples:build buildDocs
 
-COPY examples ./examples
-COPY docs ./docs
+RUN mkdir -p core/build/resources/test/org/mapfish/print/ \
+    && chmod -R go=u /home/gradle /tmp/mapfish-print/ . \
+    && chmod o+t -R core/build/resources
 
+# Backup cache
 RUN --mount=type=cache,target=/home/gradle/.gradle \
-   ([ -e success ] && ( (gradle :examples:build buildDocs >> /tmp/logs 2>&1) && touch success-examples-docs)) || true
-
-RUN chmod -R go=u /home/gradle .
-
-FROM builder AS test-builder
-
-RUN cat /tmp/logs && ls success success-publish success-examples-docs
-
-VOLUME [ "/src/core" ]
+    cp -r /home/gradle/.gradle /home/gradle/.gradle-backup
+RUN mv /home/gradle/.gradle-backup /home/gradle/.gradle
diff --git a/Makefile b/Makefile
index 647b7bdae1..d060ebf6b6 100644
--- a/Makefile
+++ b/Makefile
@@ -2,19 +2,41 @@ GIT_HEAD_ARG = --build-arg=GIT_HEAD=$(shell git rev-parse HEAD)
 export DOCKER_BUILDKIT = 1
 
 .PHONY: build
-build:
+build: build-builder
 	# Required and not necessarily exists
 	touch CI.asc
 
-	docker build $(GIT_HEAD_ARG) --target=builder --tag=mapfish_print_builder .
-	docker build $(GIT_HEAD_ARG) .
-
 	docker build $(GIT_HEAD_ARG) --target=runner --tag=camptocamp/mapfish_print core
 	docker build $(GIT_HEAD_ARG) --target=tester --tag=mapfish_print_tester core
 	docker build $(GIT_HEAD_ARG) --target=watcher --tag=mapfish_print_watcher core
 
+.PHONY: build-builder
+build-builder:
+	docker build $(GIT_HEAD_ARG) --target=builder --tag=mapfish_print_builder .
+
+.PHONY: checks
+checks: build-builder
+	docker run --rm \
+		--volume=$(PWD)/core/src/:/src/core/src/ \
+		--volume=$(PWD)/reports/:/src/core/build/reports/ \
+		mapfish_print_builder \
+		gradle :core:spotbugsMain :core:checkstyleMain
+
+.PHONY: tests
+tests: build-builder
+	docker stop print-builder || true
+	docker run --rm --detach --name=print-builder mapfish_print_builder tail --follow /dev/null
+
+	docker exec print-builder gradle :core:test
+
+	# Get the result
+	mkdir -p core/build/resources/test/org/mapfish/print/
+	docker cp print-builder:/src/core/build/resources/test/org/mapfish/print/ core/build/resources/test/org/mapfish/print/
+
+	docker stop print-builder
+
 .PHONY: acceptance-tests-up
-acceptance-tests-up:
+acceptance-tests-up: build
 	docker-compose down --remove-orphan
 
 	mkdir /tmp/geoserver-data || true
@@ -24,7 +46,7 @@ acceptance-tests-up:
 	cp -r examples/geoserver-data/* /tmp/geoserver-data/
 	cp -r core/src/test/resources/map-data/* /tmp/geoserver-data/www/
 
-	USER_ID=$(shell id -u):$(shell id -g) docker-compose up -d
+	USER_ID=$(shell id -u):$(shell id -g) docker-compose up --detach
 
 .PHONY: acceptance-tests-run
 acceptance-tests-run:
diff --git a/build.gradle b/build.gradle
index 73c4aad5df..71753d06d1 100644
--- a/build.gradle
+++ b/build.gradle
@@ -8,7 +8,6 @@ buildscript {
 
     dependencies {
         classpath "gradle.plugin.com.github.spotbugs.snom:spotbugs-gradle-plugin:4.7.5"
-        classpath "se.bjurr.violations:violations-gradle-plugin:1.52.5"
     }
 }
 
@@ -37,7 +36,6 @@ configure(subprojects.findAll { ['core', 'examples'].contains(it.name) }) {
     apply plugin: 'idea'
     apply plugin: 'project-report'
     apply plugin: 'checkstyle'
-    apply plugin: 'se.bjurr.violations.violations-gradle-plugin'
 
     jar.dependsOn(checkstyleMain)
 
@@ -45,8 +43,6 @@ configure(subprojects.findAll { ['core', 'examples'].contains(it.name) }) {
         toolVersion = "6.19" // com.puppycrawl.tools:checkstyle
         configFile = file("$rootProject.rootDir/checkstyle_checks.xml")
         configProperties = ['basedir': project.rootDir.path]
-        ignoreFailures = true
-        reportsDir = file("$project.buildDir/reports/checkstyleReports")
     }
     checkstyleTest.enabled = false
 
@@ -71,10 +67,10 @@ configure(subprojects.findAll { ['core', 'examples'].contains(it.name) }) {
     }
     check.finalizedBy violations
 
-    sourceCompatibility = 1.11
-    targetCompatibility = 1.11
-
-    compileJava.options.compilerArgs = ['-Xlint:deprecation', '-Xlint:unchecked']
+    sourceCompatibility = JavaVersion.VERSION_11
+    targetCompatibility = JavaVersion.VERSION_11
+    
+    task violations(type: se.bjurr.violations.gradle.plugin.ViolationsTask) {
 
     dependencies {
         testImplementation(
diff --git a/docker-compose.yaml b/docker-compose.yaml
index 563a32f037..932009b29a 100644
--- a/docker-compose.yaml
+++ b/docker-compose.yaml
@@ -11,11 +11,11 @@ services:
     image: mapfish_print_tester
     user: ${USER_ID}
     volumes:
-      - ./examples/src/test/resources/examples:/usr/local/tomcat/webapps/ROOT/print-apps
+      - ./examples/src/test/resources/examples:/usr/local/tomcat/webapps/ROOT/print-apps:ro
     ports:
       - 8080:8080
     environment:
-      PRINT_YAML_MAX_ALIASES: 200
+      PRINT_YAML_MAX_ALIASES: '200'
       LOG_LEVEL: DEBUG
       JASPER_LOG_LEVEL: DEBUG
 
@@ -26,5 +26,5 @@ services:
     volumes:
       - ./examples/src/test/resources/examples:/src/examples/src/test/resources/examples
     environment:
-      PRINT_YAML_MAX_ALIASES: 200
+      PRINT_YAML_MAX_ALIASES: '200'
       GRADLE_USER_HOME: /home/gradle/.gradle