Github user tillrohrmann commented on a diff in the pull request:
https://github.com/apache/flink/pull/1904#discussion_r60238192
--- Diff:
flink-java/src/main/java/org/apache/flink/api/java/RemoteEnvironment.java ---
@@ -133,26 +137,31 @@ public RemoteEnvironment(String host, int port,
Configuration clientConfig,
this.port = port;
this.clientConfiguration = clientConfig == null ? new
Configuration() : clientConfig;
if (jarFiles != null) {
- this.jarFiles = new URL[jarFiles.length];
+ this.jarFiles = new ArrayList<URL>(jarFiles.length);
for (int i = 0; i < jarFiles.length; i++) {
try {
- this.jarFiles[i] = new
File(jarFiles[i]).getAbsoluteFile().toURI().toURL();
+ this.jarFiles.add(new
File(jarFiles[i]).getAbsoluteFile().toURI().toURL());
} catch (MalformedURLException e) {
throw new IllegalArgumentException("JAR
file path invalid", e);
}
}
}
else {
- this.jarFiles = null;
+ this.jarFiles = Collections.emptyList();
+ }
+
+ if (globalClasspaths == null) {
+ this.globalClasspaths = Collections.emptyList();
+ } else {
+ this.globalClasspaths = Arrays.asList(globalClasspaths);
}
- this.globalClasspaths = globalClasspaths;
}
//
------------------------------------------------------------------------
@Override
public JobExecutionResult execute(String jobName) throws Exception {
- ensureExecutorCreated();
+ PlanExecutor executor = getExecutor();
--- End diff --
You're right, it's bad that the `PlanExecutor` is not stopped after it has
been used. I will fix this by checking in `ScalaShellRemoteEnvironment` whether
`this.executor` is set. If true, then it will call `this.executor.stop()`. That
way, there will always be at most one `PlanExecutor` active and the last one is
stopped by the `dispose` call.
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