Fix test run

Author: MartelliEnrico

Dockerfile

@@ -14,7 +14,6 @@ RUN curl -L --fail --retry 3 --retry-delay 5 "$LIBWEBP_URL" -O && \
     tar -xzf "$LIBWEBP_FILE" --one-top-level=libwebp --strip-components=1 && \
     rm "$LIBWEBP_FILE"
 
-ENV GRADLE_OPTS="-Dorg.gradle.daemon=false"
 COPY . .
 RUN --mount=type=cache,target=/root/.gradle ./gradlew jlink shadowJar
 

build.gradle

@@ -61,9 +61,10 @@ def jlink = tasks.register('jlink', JlinkTask) {
 test {
     dependsOn jlink
 
-    def jre = jlink.get().jreDir
+    def jre = jlink.map { it.jreDir }
     inputs.dir jre
-    executable = jre.get().file(Os.isFamily(Os.FAMILY_WINDOWS) ? 'bin\\java.exe' : 'bin/java')
+
+    executable = jre.get().file(Os.isFamily(Os.FAMILY_WINDOWS) ? 'bin\\java.exe' : 'bin/java').get()
 
     useJUnitPlatform()
     finalizedBy jacocoTestReport

buildSrc/src/main/java/com/github/stickerifier/stickerify/JlinkTask.java

@@ -85,14 +85,18 @@ public void performAction() {
 			execSpec.setErrorOutput(stderr);
 		});
 
-		if (result.getExitValue() == 0) {
-			getLogger().info(stdout.toString());
-		} else {
-			getLogger().log(LogLevel.ERROR, stderr.toString());
+		var stdoutStr = stdout.toString();
+		var stderrStr = stderr.toString();
+
+		if (!stdoutStr.isEmpty()) {
+			getLogger().info(stdoutStr);
+		}
+
+		if (result.getExitValue() != 0 && !stderrStr.isEmpty()) {
+			getLogger().log(LogLevel.ERROR, stderrStr);
 		}
 
 		result.assertNormalExitValue();
-		result.rethrowFailure();
 	}
 
 }