mayankshriv commented on a change in pull request #7400:
URL: https://github.com/apache/pinot/pull/7400#discussion_r712354124
##########
File path:
pinot-spi/src/main/java/org/apache/pinot/spi/plugin/PluginClassLoader.java
##########
@@ -31,27 +32,53 @@
public class PluginClassLoader extends URLClassLoader {
private final ClassLoader _classLoader;
+ private Method _addUrlMethod = null;
public PluginClassLoader(URL[] urls, ClassLoader parent) {
super(urls, parent);
_classLoader = PluginClassLoader.class.getClassLoader();
+
+ /**
+ * ClassLoader in java9+ does not extend URLClassLoader.
+ * If the class is not found in the parent classloader,
+ * it will be found in this classloader via findClass().
+ *
+ * @see https://bit.ly/2WROm1s
+ */
+
+ if (_classLoader instanceof URLClassLoader) {
+ try {
+ _addUrlMethod = URLClassLoader.class.getDeclaredMethod("addURL",
URL.class);
+ } catch (NoSuchMethodException e) {
+ //this should never happen
+ ExceptionUtils.rethrow(e);
+ }
+
+ _addUrlMethod.setAccessible(true);
Review comment:
Any alternative suggestion @richardstartin? Seems like the issue
surfaced in Pinot 0.8.0 and is breaking spark ingestion job.
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