Created a test called NullCallerGetResource to test Module::getResourceAsStream and Class::getResourceAsStream from the native level.
At the java level the test builds a test module called 'n' which opens the package 'open' to everyone. There is also a package 'closed' which is neither opened or exported. Both packages have a text file called 'test.txt'. The open package has a class called OpenResources and the closed package has a class called ClosedResources. The native test is launched with the test module n added. At the native level the test tries to read both the open and closed resource from both the classes and the module. It performs the equivalent of the following java operations: Class c = open.OpenResources.fetchClass(); InputStream in = c.getResourceAsStream("test.txt"); assert(in != null); in.close(); Module n = c.getModule(); in = n.getResourceAsStream("open/test.txt"); assert(in != null); in.close(); Class closed = closed.ClosedResources.fetchClass(); assert(closedsStream("test.txt") == null); assert(n.getResourceAsStream("closed/test.txt") == null); The test initially threw an NPE when trying to fetch the open resource. The Module class was fixed by removing the fragment with the (caller == null) test in getResourceAsStream, and changing the call to isOpen(String,Module) to use EVERYONE_MODULE if the caller module is null. ------------- Commit messages: - JDK-8281006 Module::getResourceAsStream should check if the resource is open unconditionally when caller is null Changes: https://git.openjdk.java.net/jdk/pull/8134/files Webrev: https://webrevs.openjdk.java.net/?repo=jdk&pr=8134&range=00 Issue: https://bugs.openjdk.java.net/browse/JDK-8281006 Stats: 397 lines in 7 files changed: 391 ins; 5 del; 1 mod Patch: https://git.openjdk.java.net/jdk/pull/8134.diff Fetch: git fetch https://git.openjdk.java.net/jdk pull/8134/head:pull/8134 PR: https://git.openjdk.java.net/jdk/pull/8134