avoid warnings adding not existing hardcoded paths to classpath

Author: ktoso

Samples/JavaDependencySampleApp/Sources/JavaCommonsCSV/swift-java.config

@@ -1,8 +1,8 @@
 {
   "classes" : {
-    "org.apache.commons.io.FilenameUtils" : "FilenameUtils"
+
   },
-  "classpath" : "\/Users\/ktoso\/.gradle\/caches\/modules-2\/files-2.1\/org.apache.commons\/commons-csv\/1.12.0\/c77e053d7189bc0857f8d323ab61cb949965fbd1\/commons-csv-1.12.0.jar:\/Users\/ktoso\/.gradle\/caches\/modules-2\/files-2.1\/commons-io\/commons-io\/2.17.0\/ddcc8433eb019fb48fe25207c0278143f3e1d7e2\/commons-io-2.17.0.jar:\/Users\/ktoso\/.gradle\/caches\/modules-2\/files-2.1\/commons-codec\/commons-codec\/1.17.1\/973638b7149d333563584137ebf13a691bb60579\/commons-codec-1.17.1.jar:\/Users\/ktoso\/.gradle\/caches\/modules-2\/files-2.1\/org.apache.commons\/commons-csv\/1.12.0\/c77e053d7189bc0857f8d323ab61cb949965fbd1\/commons-csv-1.12.0.jar:\/Users\/ktoso\/.gradle\/caches\/modules-2\/files-2.1\/commons-io\/commons-io\/2.17.0\/ddcc8433eb019fb48fe25207c0278143f3e1d7e2\/commons-io-2.17.0.jar:\/Users\/ktoso\/.gradle\/caches\/modules-2\/files-2.1\/commons-codec\/commons-codec\/1.17.1\/973638b7149d333563584137ebf13a691bb60579\/commons-codec-1.17.1.jar:JavaKit\/build\/classes\/java\/main:..\/..\/JavaKit\/build\/classes\/java\/main",
+  "classpath" : "\/Users\/ktoso\/.gradle\/caches\/modules-2\/files-2.1\/org.apache.commons\/commons-csv\/1.12.0\/c77e053d7189bc0857f8d323ab61cb949965fbd1\/commons-csv-1.12.0.jar:\/Users\/ktoso\/.gradle\/caches\/modules-2\/files-2.1\/commons-io\/commons-io\/2.17.0\/ddcc8433eb019fb48fe25207c0278143f3e1d7e2\/commons-io-2.17.0.jar:\/Users\/ktoso\/.gradle\/caches\/modules-2\/files-2.1\/commons-codec\/commons-codec\/1.17.1\/973638b7149d333563584137ebf13a691bb60579\/commons-codec-1.17.1.jar",
   "dependencies" : [
     "org.apache.commons:commons-csv:1.12.0"
   ]

Samples/JavaDependencySampleApp/ci-validate.sh

@@ -9,6 +9,7 @@ MODULE_NAME="JavaCommonsCSV"
 MODULE_CONFIG_DIR=$(pwd)/Sources/$MODULE_NAME/
 
 ### 1) downloads all the dependencies
+echo "Resolve dependencies..."
 "$JAVASWIFT" --fetch "$MODULE_CONFIG_DIR/swift-java.config" \
     --module-name "$MODULE_NAME" \
     --output-directory "$MODULE_CONFIG_DIR"

Sources/Java2Swift/JavaToSwift.swift

@@ -235,7 +235,9 @@ struct JavaToSwift: ParsableCommand {
       let classpathBuildJavaKitEntries = [
         "JavaKit/build/classes/java/main",
         "../../JavaKit/build/classes/java/main",
-      ]
+      ].filter {
+        FileManager.default.fileExists(atPath: $0)
+      }
       classpathEntries += classpathBuildJavaKitEntries
 
       // Bring up the Java VM.