[jira] [Created] (IGNITE-6745) Java 9: rework usages of URLClassLoader.getURLs()

[Anton Vinogradov (Jira)]

Vladimir Ozerov created IGNITE-6745:
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             Summary: Java 9: rework usages of URLClassLoader.getURLs()
                 Key: IGNITE-6745
                 URL: https://issues.apache.org/jira/browse/IGNITE-6745
             Project: Ignite
          Issue Type: Task
      Security Level: Public (Viewable by anyone)
          Components: general
            Reporter: Vladimir Ozerov
             Fix For: 2.4


We use this method in multiple places:
1) {{MessageCodeGenerator}}
2) {{BinaryContext}}
3) {{ClassesGenerator}}
4) {{GridUriDeploymentFileProcessor}}

The problem is that in Java 9 application class loader is not {{URLClassLoader}}, so we cannot get URLs easily. Instead typically it is {{BuiltinClassLoader}}, which refers to {{URLClassLoader}} in it's internal field {{ucp}}.

Let's refactor all usages of {{URLClassLoader.getURLs}} to some utility method, which will be able to handle both Java 7/8 and Java 9 (through reflection).




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