flatten modules to repo root, vendor deps, repair Eclipse build paths

Move api, engine, ui-console and ui-desktop out of modules/ up to the
repo root and drop the empty exception project (GuessMarketException now
lives in api).

Vendor gson, jaxb, okhttp, openjfx and tomcat under lib/, and group the
JUnit standalone jar into lib/junit/ alongside them.

Rewrite every .classpath: drop the copy-pasted optional="true" that was
masking real build path errors, point the library entries at ../lib/,
and put the JUnit jar on the test source folders so the placeholder
AppTest classes compile.

ui-desktop: take the JavaFX jars off the modulepath (there is no
module-info.java, so module="true" left the packages unresolvable) and
add a Launcher that calls Application.launch, avoiding the "JavaFX
runtime components are missing" check without VM arguments.

engine: add LocalGuessMarketService and the GuessMarketContext provider
interface, and give GuessMarketException the no-arg and cause
constructors they need.

94 files changed, 155 insertions, 124 deletions

diff --git a/api/.classpath b/api/.classpath
new file mode 100644
index 0000000..0e305bc
--- /dev/null
+++ b/api/.classpath
@@ -0,0 +1,14 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<classpath>
+    <!-- Defines your source folder -->
+  <classpathentry kind="src" output="bin/classes" path="src/main/java"/> 
+  <classpathentry kind="src" output="bin/test-classes" path="src/test/java">
+    <attributes>
+      <attribute name="test" value="true"/>
+    </attributes>
+  </classpathentry>
+  <classpathentry kind="lib" path="../lib/junit/junit-platform-console-standalone-6.1.1.jar"/>
+  <classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER"/>
+  <classpathentry kind="output" path="bin"/>
+</classpath>
+
diff --git a/modules/api/.project b/api/.project
index 0dc50c5..0dc50c5 100644
--- a/modules/api/.project
+++ b/api/.project
diff --git a/modules/api/src/main/java/market/guess/api/Commission.java b/api/src/main/java/market/guess/api/Commission.java
index 96cab8a..96cab8a 100644
--- a/modules/api/src/main/java/market/guess/api/Commission.java
+++ b/api/src/main/java/market/guess/api/Commission.java
diff --git a/modules/api/src/main/java/market/guess/api/CommissionChargeType.java b/api/src/main/java/market/guess/api/CommissionChargeType.java
index 75e409b..75e409b 100644
--- a/modules/api/src/main/java/market/guess/api/CommissionChargeType.java
+++ b/api/src/main/java/market/guess/api/CommissionChargeType.java
diff --git a/modules/api/src/main/java/market/guess/api/EventDTO.java b/api/src/main/java/market/guess/api/EventDTO.java
index 66b2312..66b2312 100644
--- a/modules/api/src/main/java/market/guess/api/EventDTO.java
+++ b/api/src/main/java/market/guess/api/EventDTO.java
diff --git a/modules/api/src/main/java/market/guess/api/EventStatus.java b/api/src/main/java/market/guess/api/EventStatus.java
index acd7542..acd7542 100644
--- a/modules/api/src/main/java/market/guess/api/EventStatus.java
+++ b/api/src/main/java/market/guess/api/EventStatus.java
diff --git a/modules/api/src/main/java/market/guess/api/LoadResultDTO.java b/api/src/main/java/market/guess/api/LoadResultDTO.java
index cf3630b..cf3630b 100644
--- a/modules/api/src/main/java/market/guess/api/LoadResultDTO.java
+++ b/api/src/main/java/market/guess/api/LoadResultDTO.java
diff --git a/modules/api/src/main/java/market/guess/exception/GuessMarketException.java b/api/src/main/java/market/guess/exception/GuessMarketException.java
index 68a3053..e2e486c 100644
--- a/modules/api/src/main/java/market/guess/exception/GuessMarketException.java
+++ b/api/src/main/java/market/guess/exception/GuessMarketException.java
@@ -1,7 +1,13 @@
 package market.guess.exception;
 
 public class GuessMarketException extends Exception {
+  public GuessMarketException() {}
+
   public GuessMarketException(String message) {
     super(message);
   }
+
+  public GuessMarketException(String message, Throwable cause) {
+    super(message, cause);
+  }
 }
diff --git a/api/src/test/java/market/guess/api/AppTest.java b/api/src/test/java/market/guess/api/AppTest.java
new file mode 100644
index 0000000..b5883d6
--- /dev/null
+++ b/api/src/test/java/market/guess/api/AppTest.java
@@ -0,0 +1,12 @@
+package market.guess.api;
+
+import static org.junit.jupiter.api.Assertions.assertTrue;
+
+import org.junit.jupiter.api.Test;
+
+public class AppTest {
+  @Test
+  void deterministicTest() {
+    assertTrue(true);
+  }
+}
diff --git a/engine/.classpath b/engine/.classpath
new file mode 100644
index 0000000..df0a2ce
--- /dev/null
+++ b/engine/.classpath
@@ -0,0 +1,18 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<classpath>
+  <classpathentry kind="src" output="bin/classes" path="src/main/java"/> 
+  <classpathentry kind="src" output="bin/test-classes" path="src/test/java">
+    <attributes>
+      <attribute name="test" value="true"/>
+    </attributes> 
+  </classpathentry>
+  <classpathentry kind="src" path="/guess-market-api">
+    <attributes>
+      <attribute name="module" value="true"/>
+    </attributes>
+  </classpathentry>
+  <classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER"/>
+  <classpathentry kind="lib" path="../lib/junit/junit-platform-console-standalone-6.1.1.jar"/>
+  <classpathentry kind="output" path="bin"/>
+</classpath>
+
diff --git a/modules/engine/.project b/engine/.project
index 943db42..943db42 100644
--- a/modules/engine/.project
+++ b/engine/.project
diff --git a/modules/engine/src/main/java/market/guess/engine/GuessMarketEngine.java b/engine/src/main/java/market/guess/engine/GuessMarketEngine.java
index aab3cf4..aab3cf4 100644
--- a/modules/engine/src/main/java/market/guess/engine/GuessMarketEngine.java
+++ b/engine/src/main/java/market/guess/engine/GuessMarketEngine.java
diff --git a/engine/src/main/java/market/guess/engine/LocalGuessMarketService.java b/engine/src/main/java/market/guess/engine/LocalGuessMarketService.java
new file mode 100644
index 0000000..5a16750
--- /dev/null
+++ b/engine/src/main/java/market/guess/engine/LocalGuessMarketService.java
@@ -0,0 +1,18 @@
+package market.guess.engine;
+
+import market.guess.api.LoadResultDTO;
+import market.guess.engine.provider.GuessMarketContext;
+
+public class LocalGuessMarketService implements GuessMarketEngine {
+  private final GuessMarketContext context;
+
+  public LocalGuessMarketService(GuessMarketContext context) {
+    super();
+    this.context = context;
+  }
+
+  @Override
+  public LoadResultDTO loadEvents() {
+    return context.LoadAsync();
+  }
+}
diff --git a/modules/engine/src/main/java/market/guess/engine/TradingMechanism.java b/engine/src/main/java/market/guess/engine/TradingMechanism.java
index 2f97a2f..2f97a2f 100644
--- a/modules/engine/src/main/java/market/guess/engine/TradingMechanism.java
+++ b/engine/src/main/java/market/guess/engine/TradingMechanism.java
diff --git a/modules/engine/src/main/java/market/guess/engine/mechanism/LmsrTradingMechanism.java b/engine/src/main/java/market/guess/engine/mechanism/LmsrTradingMechanism.java
index 99a26ab..99a26ab 100644
--- a/modules/engine/src/main/java/market/guess/engine/mechanism/LmsrTradingMechanism.java
+++ b/engine/src/main/java/market/guess/engine/mechanism/LmsrTradingMechanism.java
diff --git a/modules/engine/src/main/java/market/guess/engine/mechanism/OrderBookMechanism.java b/engine/src/main/java/market/guess/engine/mechanism/OrderBookMechanism.java
index be675ba..be675ba 100644
--- a/modules/engine/src/main/java/market/guess/engine/mechanism/OrderBookMechanism.java
+++ b/engine/src/main/java/market/guess/engine/mechanism/OrderBookMechanism.java
diff --git a/engine/src/main/java/market/guess/engine/provider/GuessMarketContext.java b/engine/src/main/java/market/guess/engine/provider/GuessMarketContext.java
new file mode 100644
index 0000000..2306c93
--- /dev/null
+++ b/engine/src/main/java/market/guess/engine/provider/GuessMarketContext.java
@@ -0,0 +1,17 @@
+package market.guess.engine.provider;
+
+import market.guess.api.LoadResultDTO;
+
+public interface GuessMarketContext {
+  LoadResultDTO LoadAsync();
+
+  void SaveChangesAsync();
+
+  void GetAllEventsAsync();
+
+  void GetEventInfoByIdAsync();
+
+  void CreateEventAsync();
+
+  void UpdateEventAsync();
+}
diff --git a/engine/src/test/java/market/guess/engine/AppTest.java b/engine/src/test/java/market/guess/engine/AppTest.java
new file mode 100644
index 0000000..0638bc1
--- /dev/null
+++ b/engine/src/test/java/market/guess/engine/AppTest.java
@@ -0,0 +1,12 @@
+package market.guess.engine;
+
+import static org.junit.jupiter.api.Assertions.assertTrue;
+
+import org.junit.jupiter.api.Test;
+
+public class AppTest {
+  @Test
+  void deterministicTest() {
+    assertTrue(true);
+  }
+}
diff --git a/lib/gson/gson-2.11.0-javadoc.jar b/lib/gson/gson-2.11.0-javadoc.jar
new file mode 100644
index 0000000..e07cca8
--- /dev/null
+++ b/lib/gson/gson-2.11.0-javadoc.jar
diff --git a/lib/gson/gson-2.11.0-sources.jar b/lib/gson/gson-2.11.0-sources.jar
new file mode 100644
index 0000000..703f1a3
--- /dev/null
+++ b/lib/gson/gson-2.11.0-sources.jar
diff --git a/lib/gson/gson-2.11.0.jar b/lib/gson/gson-2.11.0.jar
new file mode 100644
index 0000000..18e59c8
--- /dev/null
+++ b/lib/gson/gson-2.11.0.jar
diff --git a/lib/jaxb/angus-activation.jar b/lib/jaxb/angus-activation.jar
new file mode 100644
index 0000000..93c7aad
--- /dev/null
+++ b/lib/jaxb/angus-activation.jar
diff --git a/lib/jaxb/jakarta.activation-api.jar b/lib/jaxb/jakarta.activation-api.jar
new file mode 100644
index 0000000..0d015d5
--- /dev/null
+++ b/lib/jaxb/jakarta.activation-api.jar
diff --git a/lib/jaxb/jakarta.xml.bind-api.jar b/lib/jaxb/jakarta.xml.bind-api.jar
new file mode 100644
index 0000000..4824282
--- /dev/null
+++ b/lib/jaxb/jakarta.xml.bind-api.jar
diff --git a/lib/jaxb/jaxb-core.jar b/lib/jaxb/jaxb-core.jar
new file mode 100644
index 0000000..92ac626
--- /dev/null
+++ b/lib/jaxb/jaxb-core.jar
diff --git a/lib/jaxb/jaxb-impl.jar b/lib/jaxb/jaxb-impl.jar
new file mode 100644
index 0000000..781a451
--- /dev/null
+++ b/lib/jaxb/jaxb-impl.jar
diff --git a/lib/jaxb/jaxb-jxc.jar b/lib/jaxb/jaxb-jxc.jar
new file mode 100644
index 0000000..746f212
--- /dev/null
+++ b/lib/jaxb/jaxb-jxc.jar
diff --git a/lib/jaxb/jaxb-xjc.jar b/lib/jaxb/jaxb-xjc.jar
new file mode 100644
index 0000000..dc2ef74
--- /dev/null
+++ b/lib/jaxb/jaxb-xjc.jar
diff --git a/lib/junit-platform-console-standalone-6.1.1.jar b/lib/junit/junit-platform-console-standalone-6.1.1.jar
index ce038a5..ce038a5 100644
--- a/lib/junit-platform-console-standalone-6.1.1.jar
+++ b/lib/junit/junit-platform-console-standalone-6.1.1.jar
diff --git a/lib/okhttp/annotations-13.0.jar b/lib/okhttp/annotations-13.0.jar
new file mode 100644
index 0000000..fb794be
--- /dev/null
+++ b/lib/okhttp/annotations-13.0.jar
diff --git a/lib/okhttp/kotlin-stdlib-1.4.10.jar b/lib/okhttp/kotlin-stdlib-1.4.10.jar
new file mode 100644
index 0000000..5f24c2e
--- /dev/null
+++ b/lib/okhttp/kotlin-stdlib-1.4.10.jar
diff --git a/lib/okhttp/kotlin-stdlib-common-1.4.10.jar b/lib/okhttp/kotlin-stdlib-common-1.4.10.jar
new file mode 100644
index 0000000..a1d452e
--- /dev/null
+++ b/lib/okhttp/kotlin-stdlib-common-1.4.10.jar
diff --git a/lib/okhttp/okhttp-4.9.1.jar b/lib/okhttp/okhttp-4.9.1.jar
new file mode 100644
index 0000000..e0f95b2
--- /dev/null
+++ b/lib/okhttp/okhttp-4.9.1.jar
diff --git a/lib/okhttp/okio-2.8.0.jar b/lib/okhttp/okio-2.8.0.jar
new file mode 100644
index 0000000..bac6c6e
--- /dev/null
+++ b/lib/okhttp/okio-2.8.0.jar
diff --git a/lib/openjfx/javafx-swt.jar b/lib/openjfx/javafx-swt.jar
new file mode 100644
index 0000000..26a972f
--- /dev/null
+++ b/lib/openjfx/javafx-swt.jar
diff --git a/lib/openjfx/javafx.base.jar b/lib/openjfx/javafx.base.jar
new file mode 100644
index 0000000..855e125
--- /dev/null
+++ b/lib/openjfx/javafx.base.jar
diff --git a/lib/openjfx/javafx.controls.jar b/lib/openjfx/javafx.controls.jar
new file mode 100644
index 0000000..a0c2d31
--- /dev/null
+++ b/lib/openjfx/javafx.controls.jar
diff --git a/lib/openjfx/javafx.fxml.jar b/lib/openjfx/javafx.fxml.jar
new file mode 100644
index 0000000..c3b66e5
--- /dev/null
+++ b/lib/openjfx/javafx.fxml.jar
diff --git a/lib/openjfx/javafx.graphics.jar b/lib/openjfx/javafx.graphics.jar
new file mode 100644
index 0000000..945b80f
--- /dev/null
+++ b/lib/openjfx/javafx.graphics.jar
diff --git a/lib/openjfx/javafx.media.jar b/lib/openjfx/javafx.media.jar
new file mode 100644
index 0000000..584a9d2
--- /dev/null
+++ b/lib/openjfx/javafx.media.jar
diff --git a/lib/openjfx/javafx.properties b/lib/openjfx/javafx.properties
new file mode 100644
index 0000000..bfea014
--- /dev/null
+++ b/lib/openjfx/javafx.properties
@@ -0,0 +1,3 @@
+javafx.version=22.0.2
+javafx.runtime.version=22.0.2+4
+javafx.runtime.build=4
diff --git a/lib/openjfx/javafx.swing.jar b/lib/openjfx/javafx.swing.jar
new file mode 100644
index 0000000..8f033f1
--- /dev/null
+++ b/lib/openjfx/javafx.swing.jar
diff --git a/lib/openjfx/javafx.web.jar b/lib/openjfx/javafx.web.jar
new file mode 100644
index 0000000..2f49524
--- /dev/null
+++ b/lib/openjfx/javafx.web.jar
diff --git a/lib/tomcat/annotations-api.jar b/lib/tomcat/annotations-api.jar
new file mode 100644
index 0000000..17b3021
--- /dev/null
+++ b/lib/tomcat/annotations-api.jar
diff --git a/lib/tomcat/catalina-ant.jar b/lib/tomcat/catalina-ant.jar
new file mode 100644
index 0000000..59bd4f8
--- /dev/null
+++ b/lib/tomcat/catalina-ant.jar
diff --git a/lib/tomcat/catalina-ha.jar b/lib/tomcat/catalina-ha.jar
new file mode 100644
index 0000000..19d02d9
--- /dev/null
+++ b/lib/tomcat/catalina-ha.jar
diff --git a/lib/tomcat/catalina-ssi.jar b/lib/tomcat/catalina-ssi.jar
new file mode 100644
index 0000000..1fbcb49
--- /dev/null
+++ b/lib/tomcat/catalina-ssi.jar
diff --git a/lib/tomcat/catalina-storeconfig.jar b/lib/tomcat/catalina-storeconfig.jar
new file mode 100644
index 0000000..1e0432f
--- /dev/null
+++ b/lib/tomcat/catalina-storeconfig.jar
diff --git a/lib/tomcat/catalina-tribes.jar b/lib/tomcat/catalina-tribes.jar
new file mode 100644
index 0000000..d28322e
--- /dev/null
+++ b/lib/tomcat/catalina-tribes.jar
diff --git a/lib/tomcat/catalina.jar b/lib/tomcat/catalina.jar
new file mode 100644
index 0000000..a345826
--- /dev/null
+++ b/lib/tomcat/catalina.jar
diff --git a/lib/tomcat/ecj-4.27.jar b/lib/tomcat/ecj-4.27.jar
new file mode 100644
index 0000000..a8f827f
--- /dev/null
+++ b/lib/tomcat/ecj-4.27.jar
diff --git a/lib/tomcat/el-api.jar b/lib/tomcat/el-api.jar
new file mode 100644
index 0000000..d61bb8d
--- /dev/null
+++ b/lib/tomcat/el-api.jar
diff --git a/lib/tomcat/jakartaee-migration-1.0.8-shaded.jar b/lib/tomcat/jakartaee-migration-1.0.8-shaded.jar
new file mode 100644
index 0000000..18ce929
--- /dev/null
+++ b/lib/tomcat/jakartaee-migration-1.0.8-shaded.jar
diff --git a/lib/tomcat/jasper-el.jar b/lib/tomcat/jasper-el.jar
new file mode 100644
index 0000000..b72e9e8
--- /dev/null
+++ b/lib/tomcat/jasper-el.jar
diff --git a/lib/tomcat/jasper.jar b/lib/tomcat/jasper.jar
new file mode 100644
index 0000000..758f82e
--- /dev/null
+++ b/lib/tomcat/jasper.jar
diff --git a/lib/tomcat/jaspic-api.jar b/lib/tomcat/jaspic-api.jar
new file mode 100644
index 0000000..d77466a
--- /dev/null
+++ b/lib/tomcat/jaspic-api.jar
diff --git a/lib/tomcat/jsp-api.jar b/lib/tomcat/jsp-api.jar
new file mode 100644
index 0000000..72629f8
--- /dev/null
+++ b/lib/tomcat/jsp-api.jar
diff --git a/lib/tomcat/servlet-api.jar b/lib/tomcat/servlet-api.jar
new file mode 100644
index 0000000..712d3fa
--- /dev/null
+++ b/lib/tomcat/servlet-api.jar
diff --git a/lib/tomcat/tomcat-api.jar b/lib/tomcat/tomcat-api.jar
new file mode 100644
index 0000000..36be65c
--- /dev/null
+++ b/lib/tomcat/tomcat-api.jar
diff --git a/lib/tomcat/tomcat-coyote-ffm.jar b/lib/tomcat/tomcat-coyote-ffm.jar
new file mode 100644
index 0000000..6f7a59e
--- /dev/null
+++ b/lib/tomcat/tomcat-coyote-ffm.jar
diff --git a/lib/tomcat/tomcat-coyote.jar b/lib/tomcat/tomcat-coyote.jar
new file mode 100644
index 0000000..e87bf89
--- /dev/null
+++ b/lib/tomcat/tomcat-coyote.jar
diff --git a/lib/tomcat/tomcat-dbcp.jar b/lib/tomcat/tomcat-dbcp.jar
new file mode 100644
index 0000000..aa96b0e
--- /dev/null
+++ b/lib/tomcat/tomcat-dbcp.jar
diff --git a/lib/tomcat/tomcat-i18n-cs.jar b/lib/tomcat/tomcat-i18n-cs.jar
new file mode 100644
index 0000000..8f11683
--- /dev/null
+++ b/lib/tomcat/tomcat-i18n-cs.jar
diff --git a/lib/tomcat/tomcat-i18n-de.jar b/lib/tomcat/tomcat-i18n-de.jar
new file mode 100644
index 0000000..7540d60
--- /dev/null
+++ b/lib/tomcat/tomcat-i18n-de.jar
diff --git a/lib/tomcat/tomcat-i18n-es.jar b/lib/tomcat/tomcat-i18n-es.jar
new file mode 100644
index 0000000..b33cc95
--- /dev/null
+++ b/lib/tomcat/tomcat-i18n-es.jar
diff --git a/lib/tomcat/tomcat-i18n-fr.jar b/lib/tomcat/tomcat-i18n-fr.jar
new file mode 100644
index 0000000..728b478
--- /dev/null
+++ b/lib/tomcat/tomcat-i18n-fr.jar
diff --git a/lib/tomcat/tomcat-i18n-ja.jar b/lib/tomcat/tomcat-i18n-ja.jar
new file mode 100644
index 0000000..15fc0bf
--- /dev/null
+++ b/lib/tomcat/tomcat-i18n-ja.jar
diff --git a/lib/tomcat/tomcat-i18n-ko.jar b/lib/tomcat/tomcat-i18n-ko.jar
new file mode 100644
index 0000000..9bb9157
--- /dev/null
+++ b/lib/tomcat/tomcat-i18n-ko.jar
diff --git a/lib/tomcat/tomcat-i18n-pt-BR.jar b/lib/tomcat/tomcat-i18n-pt-BR.jar
new file mode 100644
index 0000000..1493b39
--- /dev/null
+++ b/lib/tomcat/tomcat-i18n-pt-BR.jar
diff --git a/lib/tomcat/tomcat-i18n-ru.jar b/lib/tomcat/tomcat-i18n-ru.jar
new file mode 100644
index 0000000..d23c10e
--- /dev/null
+++ b/lib/tomcat/tomcat-i18n-ru.jar
diff --git a/lib/tomcat/tomcat-i18n-zh-CN.jar b/lib/tomcat/tomcat-i18n-zh-CN.jar
new file mode 100644
index 0000000..987186b
--- /dev/null
+++ b/lib/tomcat/tomcat-i18n-zh-CN.jar
diff --git a/lib/tomcat/tomcat-jdbc.jar b/lib/tomcat/tomcat-jdbc.jar
new file mode 100644
index 0000000..6217a0a
--- /dev/null
+++ b/lib/tomcat/tomcat-jdbc.jar
diff --git a/lib/tomcat/tomcat-jni.jar b/lib/tomcat/tomcat-jni.jar
new file mode 100644
index 0000000..a703499
--- /dev/null
+++ b/lib/tomcat/tomcat-jni.jar
diff --git a/lib/tomcat/tomcat-util-scan.jar b/lib/tomcat/tomcat-util-scan.jar
new file mode 100644
index 0000000..805fe17
--- /dev/null
+++ b/lib/tomcat/tomcat-util-scan.jar
diff --git a/lib/tomcat/tomcat-util.jar b/lib/tomcat/tomcat-util.jar
new file mode 100644
index 0000000..cbd3e6f
--- /dev/null
+++ b/lib/tomcat/tomcat-util.jar
diff --git a/lib/tomcat/tomcat-websocket.jar b/lib/tomcat/tomcat-websocket.jar
new file mode 100644
index 0000000..aac589b
--- /dev/null
+++ b/lib/tomcat/tomcat-websocket.jar
diff --git a/lib/tomcat/websocket-api.jar b/lib/tomcat/websocket-api.jar
new file mode 100644
index 0000000..d6c6f1a
--- /dev/null
+++ b/lib/tomcat/websocket-api.jar
diff --git a/lib/tomcat/websocket-client-api.jar b/lib/tomcat/websocket-client-api.jar
new file mode 100644
index 0000000..9786a3d
--- /dev/null
+++ b/lib/tomcat/websocket-client-api.jar
diff --git a/modules/api/src/test/java/market/guess/api/AppTest.java b/modules/api/src/test/java/market/guess/api/AppTest.java
deleted file mode 100644
index 0b08c28..0000000
--- a/modules/api/src/test/java/market/guess/api/AppTest.java
+++ /dev/null
@@ -1,3 +0,0 @@
-package com.example;
-
-public class AppTest {}
diff --git a/modules/engine/.classpath b/modules/engine/.classpath
deleted file mode 100644
index 27bd88b..0000000
--- a/modules/engine/.classpath
+++ /dev/null
@@ -1,22 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<classpath>
-    <!-- Defines your source folder -->
-  <classpathentry kind="src" output="bin/classes" path="src/main/java"> 
-    <attributes>
-      <attribute name="optional" value="true"/>
-  </attributes>
-  </classpathentry>
-  <classpathentry kind="src" output="bin/test-classes" path="src/test/java">
-    <attributes>
-      <attribute name="optional" value="true"/>
-      <attribute name="test" value="true"/>
-    </attributes> 
-    <classpathentry kind="prj" path="/guess-market-api">
-    </classpathentry>
-  </classpathentry>
-    <!-- Defines the standard Java System Library -->
-    <classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER"/>
-    <!-- Defines where compiled .class files go -->
-    <classpathentry kind="output" path="bin"/>
-</classpath>
-
diff --git a/modules/engine/src/test/java/market/guess/engine/AppTest.java b/modules/engine/src/test/java/market/guess/engine/AppTest.java
deleted file mode 100644
index b4531c0..0000000
--- a/modules/engine/src/test/java/market/guess/engine/AppTest.java
+++ /dev/null
@@ -1,3 +0,0 @@
-package market.guess.engine;
-
-public class AppTest {}
diff --git a/modules/exception/.project b/modules/exception/.project
deleted file mode 100644
index 5af632c..0000000
--- a/modules/exception/.project
+++ /dev/null
@@ -1,28 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<projectDescription>
-        <name>guess-market-exception</name>
-        <comment></comment>
-        <projects>
-        </projects>
-        <buildSpec>
-                <buildCommand>
-                        <name>org.eclipse.jdt.core.javabuilder</name>
-                        <arguments>
-                        </arguments>
-                </buildCommand>
-        </buildSpec>
-        <natures>
-                <nature>org.eclipse.jdt.core.javanature</nature>
-        </natures>
-        <filteredResources>
-                <filter>
-                        <id>1784965956299</id>
-                        <name></name>
-                        <type>30</type>
-                        <matcher>
-                                <id>org.eclipse.core.resources.regexFilterMatcher</id>
-                                <arguments>node_modules|\.git|__CREATED_BY_JAVA_LANGUAGE_SERVER__</arguments>
-                        </matcher>
-                </filter>
-        </filteredResources>
-</projectDescription>
diff --git a/modules/ui-console/.classpath b/modules/ui-console/.classpath
deleted file mode 100644
index 7f8bc25..0000000
--- a/modules/ui-console/.classpath
+++ /dev/null
@@ -1,20 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<classpath>
-    <!-- Defines your source folder -->
-  <classpathentry kind="src" output="bin/classes" path="src/main/java"> 
-    <attributes>
-      <attribute name="optional" value="true"/>
-  </attributes>
-  </classpathentry>
-  <classpathentry kind="src" output="bin/test-classes" path="src/test/java">
-    <attributes>
-      <attribute name="optional" value="true"/>
-      <attribute name="test" value="true"/>
-    </attributes>
-  </classpathentry>
-    <!-- Defines the standard Java System Library -->
-    <classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER"/>
-    <!-- Defines where compiled .class files go -->
-    <classpathentry kind="output" path="bin"/>
-</classpath>
-
diff --git a/modules/ui-console/src/test/java/com/example/AppTest.java b/modules/ui-console/src/test/java/com/example/AppTest.java
deleted file mode 100644
index 0b08c28..0000000
--- a/modules/ui-console/src/test/java/com/example/AppTest.java
+++ /dev/null
@@ -1,3 +0,0 @@
-package com.example;
-
-public class AppTest {}
diff --git a/modules/ui-desktop/.classpath b/modules/ui-desktop/.classpath
deleted file mode 100644
index 7d4bc5c..0000000
--- a/modules/ui-desktop/.classpath
+++ /dev/null
@@ -1,34 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<classpath>
-    <!-- Defines your source folder -->
-  <classpathentry kind="src" output="bin/classes" path="src/main/java"> 
-    <attributes>
-      <attribute name="optional" value="true"/>
-  </attributes>
-  </classpathentry>
-  <classpathentry kind="src" output="bin/test-classes" path="src/test/java">
-    <attributes>
-      <attribute name="optional" value="true"/>
-      <attribute name="test" value="true"/>
-    </attributes>
-  </classpathentry>
-    <!-- Defines the standard Java System Library -->
-    <classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER"/>
-    <!-- Defines where compiled .class files go -->
-  <classpathentry kind="output" path="bin"/>    
-
-  <!-- Required OpenJFX JARs explicitly placed on the Modulepath -->
-        <classpathentry kind="lib" path="/usr/share/openjfx/lib/javafx.base.jar">
-                <attributes><attribute name="module" value="true"/></attributes>
-        </classpathentry>
-        <classpathentry kind="lib" path="/usr/share/openjfx/lib/javafx.controls.jar">
-                <attributes><attribute name="module" value="true"/></attributes>
-        </classpathentry>
-        <classpathentry kind="lib" path="/usr/share/openjfx/lib/javafx.graphics.jar">
-                <attributes><attribute name="module" value="true"/></attributes>
-        </classpathentry>
-        <classpathentry kind="lib" path="/usr/share/openjfx/lib/javafx.fxml.jar">
-                <attributes><attribute name="module" value="true"/></attributes>
-        </classpathentry>
-</classpath>
-
diff --git a/ui-console/.classpath b/ui-console/.classpath
new file mode 100644
index 0000000..ec2bc02
--- /dev/null
+++ b/ui-console/.classpath
@@ -0,0 +1,13 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<classpath>
+  <classpathentry kind="src" output="bin/classes" path="src/main/java"/> 
+  <classpathentry kind="src" output="bin/test-classes" path="src/test/java">
+    <attributes>
+      <attribute name="test" value="true"/>
+    </attributes>
+  </classpathentry>
+  <classpathentry kind="lib" path="../lib/junit/junit-platform-console-standalone-6.1.1.jar"/>
+  <classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER"/>
+  <classpathentry kind="output" path="bin"/>
+</classpath>
+
diff --git a/modules/ui-console/.project b/ui-console/.project
index 9e047cb..9e047cb 100644
--- a/modules/ui-console/.project
+++ b/ui-console/.project
diff --git a/modules/ui-console/src/main/java/market/guess/ui/console/App.java b/ui-console/src/main/java/market/guess/ui/console/App.java
index 06be86d..06be86d 100644
--- a/modules/ui-console/src/main/java/market/guess/ui/console/App.java
+++ b/ui-console/src/main/java/market/guess/ui/console/App.java
diff --git a/ui-console/src/test/java/market/guess/ui/console/AppTest.java b/ui-console/src/test/java/market/guess/ui/console/AppTest.java
new file mode 100644
index 0000000..173dbb7
--- /dev/null
+++ b/ui-console/src/test/java/market/guess/ui/console/AppTest.java
@@ -0,0 +1,12 @@
+package market.guess.ui.console;
+
+import static org.junit.jupiter.api.Assertions.assertTrue;
+
+import org.junit.jupiter.api.Test;
+
+public class AppTest {
+  @Test
+  void deterministicTest() {
+    assertTrue(true);
+  }
+}
diff --git a/modules/api/.classpath b/ui-desktop/.classpath
index 7f8bc25..bac8826 100644
--- a/modules/api/.classpath
+++ b/ui-desktop/.classpath
@@ -1,20 +1,22 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <classpath>
     <!-- Defines your source folder -->
-  <classpathentry kind="src" output="bin/classes" path="src/main/java"> 
-    <attributes>
-      <attribute name="optional" value="true"/>
-  </attributes>
-  </classpathentry>
+  <classpathentry kind="src" output="bin/classes" path="src/main/java"/> 
   <classpathentry kind="src" output="bin/test-classes" path="src/test/java">
     <attributes>
-      <attribute name="optional" value="true"/>
       <attribute name="test" value="true"/>
     </attributes>
   </classpathentry>
     <!-- Defines the standard Java System Library -->
     <classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER"/>
     <!-- Defines where compiled .class files go -->
-    <classpathentry kind="output" path="bin"/>
+  <classpathentry kind="output" path="bin"/>    
+
+  <classpathentry kind="lib" path="../lib/junit/junit-platform-console-standalone-6.1.1.jar"/>
+  <!-- Required OpenJFX JARs explicitly placed on the Modulepath -->
+  <classpathentry kind="lib" path="../lib/openjfx/javafx.base.jar"/>
+  <classpathentry kind="lib" path="../lib/openjfx/javafx.controls.jar"/>
+  <classpathentry kind="lib" path="../lib/openjfx/javafx.graphics.jar"/>
+  <classpathentry kind="lib" path="../lib/openjfx/javafx.fxml.jar"/>
 </classpath>
 
diff --git a/modules/ui-desktop/.project b/ui-desktop/.project
index e421bbf..e421bbf 100644
--- a/modules/ui-desktop/.project
+++ b/ui-desktop/.project
diff --git a/modules/ui-desktop/src/main/java/market/guess/ui/desktop/App.java b/ui-desktop/src/main/java/market/guess/ui/desktop/App.java
index 698cdd7..f0b2b7a 100644
--- a/modules/ui-desktop/src/main/java/market/guess/ui/desktop/App.java
+++ b/ui-desktop/src/main/java/market/guess/ui/desktop/App.java
@@ -7,10 +7,6 @@ import javafx.scene.layout.StackPane;
 import javafx.stage.Stage;
 
 public class App extends Application {
-  public static void main(String[] args) {
-    launch();
-  }
-
   @Override
   public void start(Stage stage) throws Exception {
     var javaVersion = System.getProperty("java.version");
diff --git a/ui-desktop/src/main/java/market/guess/ui/desktop/Launcher.java b/ui-desktop/src/main/java/market/guess/ui/desktop/Launcher.java
new file mode 100644
index 0000000..ffe9505
--- /dev/null
+++ b/ui-desktop/src/main/java/market/guess/ui/desktop/Launcher.java
@@ -0,0 +1,9 @@
+package market.guess.ui.desktop;
+
+import javafx.application.Application;
+
+public final class Launcher {
+  public static void main(String[] args) {
+    Application.launch(App.class, args);
+  }
+}
diff --git a/ui-desktop/src/test/java/market/guess/engine/AppTest.java b/ui-desktop/src/test/java/market/guess/engine/AppTest.java
new file mode 100644
index 0000000..0638bc1
--- /dev/null
+++ b/ui-desktop/src/test/java/market/guess/engine/AppTest.java
@@ -0,0 +1,12 @@
+package market.guess.engine;
+
+import static org.junit.jupiter.api.Assertions.assertTrue;
+
+import org.junit.jupiter.api.Test;
+
+public class AppTest {
+  @Test
+  void deterministicTest() {
+    assertTrue(true);
+  }
+}