Add option to dump properties on launch

recaf-api/src/main/java/software/coley/recaf/analytics/SystemInformation.java

@@ -1,5 +1,6 @@
 package software.coley.recaf.analytics;
 
+import jakarta.annotation.Nullable;
 import org.slf4j.Logger;
 
 import java.io.StringWriter;
@@ -66,7 +67,7 @@ private static int determineBitness() {
 	 * @param logger
 	 * 		Logger to dump into.
 	 */
-	public static void dump(Logger logger) {
+	public static void dump(@Nullable Logger logger) {
 		if (logger != null)
 			ALL_PROPERTIES.forEach((key, value) ->
 					logger.debug("{} = {}", key, value));
@@ -78,7 +79,7 @@ public static void dump(Logger logger) {
 	 * @param writer
 	 * 		Writer to dump into.
 	 */
-	public static void dump(StringWriter writer) {
+	public static void dump(@Nullable StringWriter writer) {
 		if (writer != null)
 			ALL_PROPERTIES.forEach((key, value) ->
 					writer.append(String.format("%s = %s\n", key, value)));

recaf-core/src/main/java/software/coley/recaf/launch/LaunchCommand.java

@@ -7,10 +7,12 @@
 import picocli.CommandLine.Option;
 import software.coley.recaf.Bootstrap;
 import software.coley.recaf.RecafBuildConfig;
+import software.coley.recaf.analytics.SystemInformation;
 import software.coley.recaf.services.Service;
 import software.coley.recaf.util.StringUtil;
 
 import java.io.File;
+import java.io.StringWriter;
 import java.util.Comparator;
 import java.util.List;
 import java.util.Set;
@@ -36,10 +38,13 @@ public class LaunchCommand implements Callable<Boolean> {
 	private boolean version;
 	@Option(names = {"-l", "--listservices"}, description = "Display the version information.")
 	private boolean listServices;
+	@Option(names = {"-p", "--listprops"}, description = "Display system properties.")
+	private boolean dumpProperties;
 
 	@Override
 	public Boolean call() throws Exception {
-		if (version || listServices)
+		boolean ret = false;
+		if (version || listServices || dumpProperties)
 			System.out.println("======================= RECAF =======================");
 		if (version) {
 			System.out.printf("""
@@ -54,7 +59,7 @@ public Boolean call() throws Exception {
 					RecafBuildConfig.GIT_DATE,
 					RecafBuildConfig.GIT_BRANCH
 			);
-			return true;
+			ret = true;
 		}
 		if (listServices) {
 			try {
@@ -70,9 +75,16 @@ public Boolean call() throws Exception {
 				System.out.println(StringUtil.traceToString(t));
 			}
 			System.out.println("=====================================================");
-			return true;
+			ret = true;
 		}
-		return false;
+		if (dumpProperties) {
+			StringWriter sw = new StringWriter();
+			SystemInformation.dump(sw);
+			System.out.println(sw);
+			System.out.println("=====================================================");
+			ret = true;
+		}
+		return ret;
 	}
 
 	/**