add more information to errors

Author: carlosuc3m

src/main/java/io/bioimage/modelrunner/tensorflow/v2/api020/Tensorflow2Interface.java

@@ -211,11 +211,11 @@ private void launchModelLoadOnProcess() throws IOException, InterruptedException
 		if (task.status == TaskStatus.CANCELED)
 			throw new RuntimeException();
 		else if (task.status == TaskStatus.FAILED)
-			throw new RuntimeException();
+			throw new RuntimeException(task.error);
 		else if (task.status == TaskStatus.CRASHED) {
 			this.runner.close();
 			runner = null;
-			throw new RuntimeException();
+			throw new RuntimeException(task.error);
 		}
 	}
 
@@ -371,11 +371,11 @@ void runInterprocessing(List<Tensor<T>> inputTensors, List<Tensor<R>> outputTens
 			if (task.status == TaskStatus.CANCELED)
 				throw new RuntimeException();
 			else if (task.status == TaskStatus.FAILED)
-				throw new RuntimeException();
+				throw new RuntimeException(task.error);
 			else if (task.status == TaskStatus.CRASHED) {
 				this.runner.close();
 				runner = null;
-				throw new RuntimeException();
+				throw new RuntimeException(task.error);
 			}
 			for (int i = 0; i < outputTensors.size(); i ++) {
 	        	String name = (String) Types.decode(encOuts.get(i)).get(MEM_NAME_KEY);
@@ -496,11 +496,11 @@ public void closeModel() {
 			if (task.status == TaskStatus.CANCELED)
 				throw new RuntimeException();
 			else if (task.status == TaskStatus.FAILED)
-				throw new RuntimeException();
+				throw new RuntimeException(task.error);
 			else if (task.status == TaskStatus.CRASHED) {
 				this.runner.close();
 				runner = null;
-				throw new RuntimeException();
+				throw new RuntimeException(task.error);
 			}
 			this.runner.close();
 			this.runner = null;