Simplify pgp sign

Jenkinsfile

@@ -10,41 +10,22 @@ pipeline {
 	}
 	tools {
 		maven 'apache-maven-3.9.9'
-		jdk 'openjdk-jdk21-latest'
+		jdk 'temurin-jdk21-latest'
 	}
 	stages {
 		stage('get m2e-core-tests') {
 			steps {
 				sh 'git submodule update --init --recursive --remote'
 			}
 		}
-		stage('initialize PGP') {
-			when {
-				anyOf{
-					branch 'master';
-					branch pattern: 'm2e-[0-9]+\\.[0-9]+\\.x', comparator: "REGEXP"
-				}
-			}
-			steps {
-				withCredentials([file(credentialsId: 'secret-subkeys.asc', variable: 'KEYRING')]) {
-					sh 'gpg --batch --import "${KEYRING}"'
-					sh '''
-						for fpr in $(gpg --list-keys --with-colons | awk -F: \'/fpr:/ {print $10}\' | sort -u)
-						do
-							echo -e "5\ny\n" | gpg --batch --command-fd 0 --expert --edit-key ${fpr} trust
-						done
-					'''
-				}
-			}
-		}
 		stage('Build') {
 			steps {
-				withCredentials([string(credentialsId: 'gpg-passphrase', variable: 'KEYRING_PASSPHRASE')]) {
+				withCredentials([file(credentialsId: 'secret-subkeys.asc', variable: 'KEYRING'),string(credentialsId: 'gpg-passphrase', variable: 'KEYRING_PASSPHRASE')]) {
 				xvnc(useXauthority: true) {
 					sh '''
 						mavenArgs="clean verify --batch-mode -Dmaven.test.error.ignore=true -Dmaven.test.failure.ignore=true -Dtycho.p2.baselineMode=failCommon"
 						if [[ ${BRANCH_NAME} == master ]] || [[ ${BRANCH_NAME} =~ m2e-[0-9]+\\.[0-9]+\\.x ]]; then
-							mvn ${mavenArgs} -Peclipse-sign,its -Dgpg.passphrase="${KEYRING_PASSPHRASE}" -Dgpg.keyname="011C526F29B2CE79"
+							mvn ${mavenArgs} -Peclipse-sign,its -DDtycho.pgp.signer.bc.secretKeys="${KEYRING}" -Dgpg.passphrase="${KEYRING_PASSPHRASE}" -Dgpg.keyname="011C526F29B2CE79"
 						else
 							# Clear KEYRING_PASSPHRASE environment variable
 							export KEYRING_PASSPHRASE='EMPTY'

org.eclipse.m2e.repository/pom.xml

@@ -86,6 +86,7 @@
 									<goal>sign-p2-artifacts</goal>
 								</goals>
 								<configuration>
+								    <signer>bc</signer>
 									<skipIfJarsigned>true</skipIfJarsigned>
 								</configuration>
 							</execution>