blackdrag commented on a change in pull request #1171: GROOVY-9416: Avoid
unnecessary looking up non default import classes …
URL: https://github.com/apache/groovy/pull/1171#discussion_r382916001
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File path: src/main/java/org/codehaus/groovy/vmplugin/v9/Java9.java
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@@ -81,15 +91,40 @@
result.putAll(doFindClasses(URI.create("jrt:/modules/java.base/"),
"java", javaPns));
try {
- URI gsLocation =
DefaultGroovyMethods.getLocation(GroovySystem.class).toURI();
- result.putAll(doFindClasses(gsLocation, "groovy", groovyPns));
+ List<URI> foundURIList = new LinkedList<>();
+ result.putAll(doFindGroovyClasses("groovy.lang.GroovySystem",
groovyPns, foundURIList));
+
+ // in user production environment, Groovy core classes, e.g.
`GroovySystem`(java class) and `GrapeIvy`(groovy class) are all packaged in the
groovy core jar file,
+ // but in Groovy development environment, Groovy core classes are
distributed in different directories
+ result.putAll(doFindGroovyClasses("groovy.grape.GrapeIvy",
groovyPns, foundURIList));
} catch (Exception e) {
- System.err.println("[WARNING] Failed to get default imported
groovy classes: " + e.getMessage());
+ throw new GroovyBugError("Failed to get default imported groovy
classes", e);
}
return result;
}
+ private Map<String, Set<String>> doFindGroovyClasses(String cn,
List<String> groovyPns, List<URI> foundURIList) throws URISyntaxException {
+ GroovyClassLoader groovyClassLoader = new GroovyClassLoader();
+ URI classpathEntryURI;
+ try {
+ Class<?> clazz = groovyClassLoader.loadClass(cn);
+ classpathEntryURI =
DefaultGroovyMethods.getLocation(clazz).toURI();
Review comment:
I really wonder about this one. There is no gurantee that
DefaultGroovyMethods.getLocation(clazz) will return something else than null,
which would lead to a NPE here. In general I am wondering what happens if you
are in an environment which does not provide the classes from file based
locations. What if the classes actually come from a database? And yes, I mean
the groovy-core classes itself. It is ok when it is slower then, as long as it
still works. But the logic that handles the case it was not found in here it is
not fully clear to me at this point actually
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