but do quote "$@" in java call to allow filenames with spaces to work.

desktop/.factorypath

@@ -1,6 +1,9 @@
 <factorypath>
     <factorypathentry kind="VARJAR" id="M2_REPO/net/monarchpass/libpiecannon/0.0.1-SNAPSHOT/libpiecannon-0.0.1-SNAPSHOT.jar" enabled="true" runInBatchMode="false"/>
     <factorypathentry kind="VARJAR" id="M2_REPO/com/github/mwiede/jsch/0.1.60/jsch-0.1.60.jar" enabled="true" runInBatchMode="false"/>
+    <factorypathentry kind="VARJAR" id="M2_REPO/com/google/code/gson/gson/2.8.6/gson-2.8.6.jar" enabled="true" runInBatchMode="false"/>
+    <factorypathentry kind="VARJAR" id="M2_REPO/org/jodd/jodd-http/6.0.3/jodd-http-6.0.3.jar" enabled="true" runInBatchMode="false"/>
+    <factorypathentry kind="VARJAR" id="M2_REPO/org/jodd/jodd-util/6.0.0/jodd-util-6.0.0.jar" enabled="true" runInBatchMode="false"/>
     <factorypathentry kind="VARJAR" id="M2_REPO/com/google/guava/guava/30.0-jre/guava-30.0-jre.jar" enabled="true" runInBatchMode="false"/>
     <factorypathentry kind="VARJAR" id="M2_REPO/com/google/guava/failureaccess/1.0.1/failureaccess-1.0.1.jar" enabled="true" runInBatchMode="false"/>
     <factorypathentry kind="VARJAR" id="M2_REPO/com/google/guava/listenablefuture/9999.0-empty-to-avoid-conflict-with-guava/listenablefuture-9999.0-empty-to-avoid-conflict-with-guava.jar" enabled="true" runInBatchMode="false"/>
@@ -9,6 +12,5 @@
     <factorypathentry kind="VARJAR" id="M2_REPO/com/google/errorprone/error_prone_annotations/2.3.4/error_prone_annotations-2.3.4.jar" enabled="true" runInBatchMode="false"/>
     <factorypathentry kind="VARJAR" id="M2_REPO/com/google/j2objc/j2objc-annotations/1.3/j2objc-annotations-1.3.jar" enabled="true" runInBatchMode="false"/>
     <factorypathentry kind="VARJAR" id="M2_REPO/net/kothar/xdg-java/0.1.1/xdg-java-0.1.1.jar" enabled="true" runInBatchMode="false"/>
-    <factorypathentry kind="VARJAR" id="M2_REPO/com/google/code/gson/gson/2.8.6/gson-2.8.6.jar" enabled="true" runInBatchMode="false"/>
     <factorypathentry kind="VARJAR" id="M2_REPO/org/projectlombok/lombok/1.18.16/lombok-1.18.16.jar" enabled="true" runInBatchMode="false"/>
 </factorypath>

desktop/Makefile

@@ -0,0 +1,12 @@
+PREFIX=~/.local
+DEST=$(PREFIX)/lib/piecannon
+COMMAND=$(PREFIX)/bin/piecannon
+
+target:
+	mvn install
+	
+install: target
+	mkdir -p $(DEST)
+	cp target/piecannon-*.jar $(DEST)/piecannon.jar
+	sed "s#@JAR_PATH@#$(DEST)/piecannon.jar#g" piecannon.in > $(COMMAND)
+	chmod +x $(COMMAND)

desktop/piecannon

@@ -1,20 +0,0 @@
-#!/bin/sh
-PC_GROUP="net.monarchpass"
-PC_ARTIFACT="piecannon-desktop-app"
-PC_VERSION="0.0.1-SNAPSHOT"
-PC_CLASS="net.monarchpass.piecannon.App"
-
-STUB_POM="<project xmlns='http://maven.apache.org/POM/4.0.0' xmlns:xsi='http://www.w3.org/2001/XMLSchema-instance' xsi:schemaLocation='http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd'> <modelVersion>4.0.0</modelVersion> <groupId>$PC_GROUP</groupId> <artifactId>piecannon-launcher</artifactId> <version>$PC_VERSION</version> <dependencies> <dependency><groupId>$PC_GROUP</groupId><artifactId>$PC_ARTIFACT</artifactId><version>\${project.version}</version></dependency></dependencies></project>"
-STUB_POM_FILE=/tmp/pc.xml
-echo $STUB_POM > $STUB_POM_FILE
-
-OUTPUT=$(mvn -f $STUB_POM_FILE -B exec:java -Dexec.mainClass=$PC_CLASS -Dexec.arguments=$1 -Dorg.slf4j.simpleLogger.defaultLogLevel=WARN)
-EXEC_RESULT=$?
-echo "$OUTPUT"
-
-if [ $EXEC_RESULT != 0 ]; then
-    exit $EXEC_RESULT;
-fi
-
-RESULT=$(echo "$OUTPUT" | tail -n 1)
-xdg-open $RESULT

desktop/piecannon.in

@@ -0,0 +1,10 @@
+#!/bin/sh
+JAR_PATH=@JAR_PATH@
+
+if [ "$1" = "--file-selector" ]; then
+    RESULT=$(java -jar "$JAR_PATH" $(yad --file))
+else
+    RESULT=$(java -jar "$JAR_PATH" "$@")
+fi
+
+xdg-open $RESULT

desktop/pom.xml

@@ -57,6 +57,31 @@
 				<artifactId>maven-surefire-plugin</artifactId>
 				<version>2.22.2</version>
 			</plugin>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-jar-plugin</artifactId>
+                <configuration>
+                    <archive>
+                        <manifest>
+                            <addClasspath>true</addClasspath>
+                            <mainClass>net.monarchpass.piecannon.App</mainClass>
+                        </manifest>
+                    </archive>
+                </configuration>
+            </plugin>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-shade-plugin</artifactId>
+                <version>3.2.4</version>
+                <executions>
+                    <execution>
+                        <phase>package</phase>
+                            <goals>
+                                <goal>shade</goal>
+                            </goals>
+                    </execution>
+                </executions>
+            </plugin>
 		</plugins>
 	</build>
 </project>

desktop/src/main/java/net/monarchpass/piecannon/App.java

@@ -51,8 +51,16 @@ public class App {
     public static void testServers (final List<Server> servers) {
         log.log(Level.INFO, "Testing all defined servers");
         for (final Server server : servers) {
+            Object result;
+            try {
+                result = PieCannon.testServer(server);
+            }
+            catch (final Exception exception) {
+                result = exception;
+            }
+            
             log.log(Level.INFO, "{0} {1}: {2}", new Object[] {
-                server.getClass().getSimpleName(), server.getLabel(), PieCannon.testServer(server)
+                server.getClass().getSimpleName(), server.getLabel(), result
             });
         }
     }

lib/src/main/java/net/monarchpass/piecannon/PieCannon.java

@@ -10,16 +10,12 @@ import java.io.IOException;
 
 import java.util.List;
 import java.util.ArrayList;
-import java.util.Collections;
 import java.util.Random;
 
 import com.google.common.base.Charsets;
 import com.google.common.io.CharSource;
 import com.google.common.io.ByteStreams;
 
-import java.util.stream.Collectors;
-
-import com.google.gson.JsonArray;
 import com.google.gson.JsonElement;
 import com.google.gson.JsonObject;
 import com.google.gson.JsonParser;

lib/src/main/java/net/monarchpass/piecannon/impl/WebDavServer.java

@@ -6,6 +6,7 @@ import java.net.URI;
 import com.google.common.io.ByteSource;
 
 import jodd.http.HttpRequest;
+import jodd.http.HttpResponse;
 import lombok.Data;
 import net.monarchpass.piecannon.Server;
 
@@ -28,7 +29,11 @@ public class WebDavServer implements Server {
                 request.basicAuthentication(username, password);
             }
             
-            request.send();
+            final HttpResponse response = request.send();
+            if (response.statusCode() >= 400) {
+                throw new RuntimeException(response.statusCode() + ": " + response.statusPhrase());
+            }
+            
             return target;        
         } catch (final IOException exception) {
             throw new RuntimeException(exception);