3e03f359a7
add_jar() currently requires (undocumented) that resources be supplied as relative paths. The resources *may* then end up in a path which does not reflect the original path particularly when performing out-of-source builds. This change adds a RESOURCE (and NAMESPACE) parameter and a function to add the names resources into the named namespace within the jar- and thus address both of these problems. Fixes: #22101
49 lines
1.7 KiB
Java
49 lines
1.7 KiB
Java
import java.io.InputStream;
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import java.io.InputStreamReader;
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import java.io.BufferedReader;
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import java.io.IOException;
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class ResourceNS
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{
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public static void main(String args[])
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{
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ResourceNS res = new ResourceNS();
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res.displayResourceText();
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}
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public void displayResourceText()
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{
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/*
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* Since Java SE 9, invoking getResourceXXX on a class in a named
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* module will only locate the resource in that module, it will
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* not search the class path as it did in previous release. So when
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* you use Class.getClassLoader().getResource() it will attempt to
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* locate the resource in the module containing the ClassLoader,
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* possibly something like:
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* jdk.internal.loader.ClassLoaders.AppClassLoader
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* which is probably not the module that your resource is in, so it
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* returns null.
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*
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* You have to make java 9+ search for the file in your module.
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* Do that by changing Class to any class defined in your module in
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* order to make java use the proper class loader.
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*/
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// Namespaces are relative, use leading '/' for full namespace
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InputStream is =
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ResourceNS.class.getResourceAsStream("/ns/ns1/HelloWorld.txt");
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// C++: cout << is.readline(); // oh, well !
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InputStreamReader isr = new InputStreamReader(is);
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BufferedReader reader = new BufferedReader(isr);
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String out = "";
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try{
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out = reader.readLine();
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} catch(IOException e) {
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e.printStackTrace();
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System.out.println(e);
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}
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System.out.println(out);
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}
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}
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