wolfstudy commented on issue #5465: [Pulsar Functions] User class constructor throws exception URL: https://github.com/apache/pulsar/issues/5465#issuecomment-546295197 After I delete the files in the following two paths, the instance of function can be created normally. ``` 12:00:50.493 [public/default/test-serde-xiaolong-0] INFO org.apache.pulsar.functions.instance.JavaInstanceRunnable - Load JAR: /tmp/pulsar_functions/public/default/test-serde-xiaolong/0/pulsar-util-function-api-pack-0.10.2-all.jar 12:00:50.548 [public/default/test-serde-xiaolong-0] WARN org.apache.pulsar.common.nar.NarClassLoader - /var/folders/qz/g2fh76dx5rj4q_fbkfh1q3th0000gn/T/pulsar-nar/pulsar-util-function-api-pack-0.10.2-all.jar-unpacked does not contain META-INF/bundled-dependencies! ``` So, I guess after a while, the contents of these two folders may be lost. ``` private final static String HASH_FILENAME = "nar-md5sum"; ``` But the `nar-md5sum` file should still exist, otherwise it will rewrite the contents of the entire folder.
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