Removed constraint that a basepath must be set for a package to contain an image file. Version bump of Tableschema lib

Author: JohannesJander

pom.xml

@@ -4,7 +4,7 @@
     <modelVersion>4.0.0</modelVersion>
     <groupId>io.frictionlessdata</groupId>
     <artifactId>datapackage-java</artifactId>
-    <version>0.6.5-SNAPSHOT</version>
+    <version>0.6.7-SNAPSHOT</version>
     <packaging>jar</packaging>
     <issueManagement>
         <url>https://github.com/frictionlessdata/datapackage-java/issues</url>
@@ -22,7 +22,7 @@
         <java.version>8</java.version>
         <maven.compiler.source>${java.version}</maven.compiler.source>
         <maven.compiler.target>${java.version}</maven.compiler.target>
-        <tableschema-java-version>0.6.5</tableschema-java-version>
+        <tableschema-java-version>0.6.7</tableschema-java-version>
         <hamcrest.version>1.3</hamcrest.version>
         <junit.version>5.9.1</junit.version>
         <slf4j-simple.version>2.0.5</slf4j-simple.version>

src/main/java/io/frictionlessdata/datapackage/Package.java

@@ -525,11 +525,8 @@ public void write (File outputDir, boolean zipCompressed) throws Exception {
         writeDescriptor(outFs, parentDirName);
 
         if (null != imageData) {
-            if (null == getBasePath()) {
-                if (null != getBaseUrl()) {
-                    throw new DataPackageException("Cannot add image data to a package read from an URL");
-                }
-                throw new DataPackageException("Invalid package, base path is null");
+            if (null != getBaseUrl()) {
+                throw new DataPackageException("Cannot add image data to a package read from an URL");
             }
             String fileName = (!StringUtils.isEmpty(this.image)) ? this.image : "image-file";
             String sanitizedFileName = fileName.replaceAll("[\\s/\\\\]+", "_");
@@ -546,8 +543,10 @@ public void write (File outputDir, boolean zipCompressed) throws Exception {
                 }
             }
         }
-        // ZIP-FS needs close, but WindowsFileSystem unsurprisingly doesn't
-        // like to get closed...
+        /* ZIP-FS needs close, but WindowsFileSystem unsurprisingly doesn't
+         like to get closed...
+         The empty catch block is intentional.
+         */
         try {
             outFs.close();
         } catch (UnsupportedOperationException es) {};