feat: classpathentry should respect pom resource

excludes/includes,:
so we build project on eclipse without org.eclipse.m2e.core.maven2Builder

Author: qxo

org.eclipse.m2e.jdt/src/org/eclipse/m2e/jdt/internal/AbstractJavaProjectConfigurator.java

@@ -566,7 +566,7 @@ private void addResourceDirs(IClasspathDescriptor classpath, IProject project, M
           // skip adding resource folders that are included by other resource folders
           log.info("Skipping resource folder " + path + " since it's contained by another resource folder");
         } else {
-          addResourceFolder(classpath, path, outputPath, addTestFlag);
+          addResourceFolder(classpath, path, outputPath, addTestFlag, resource);
         }
         // Set folder encoding (null = platform default)
         if(r.exists()) {
@@ -579,14 +579,29 @@ private void addResourceDirs(IClasspathDescriptor classpath, IProject project, M
   }
 
   private void addResourceFolder(IClasspathDescriptor classpath, IPath resourceFolder, IPath outputPath,
-      boolean addTestFlag) {
+      boolean addTestFlag, Resource resource) {
     log.info("Adding resource folder " + resourceFolder);
-    IClasspathEntryDescriptor descriptor = classpath.addSourceEntry(resourceFolder, outputPath, DEFAULT_INCLUSIONS,
-        new IPath[] {IPath.fromOSString("**/*.java")}, false /*optional*/);
+    IClasspathEntryDescriptor descriptor = classpath.addSourceEntry(resourceFolder, outputPath, 
+      toIPathList(resource.getIncludes(), null),
+      toIPathList(resource.getExcludes(), "**/*.java"), false /*optional*/);
     descriptor.setClasspathAttribute(IClasspathManager.TEST_ATTRIBUTE, addTestFlag ? "true" : null);
     descriptor.setClasspathAttribute(IClasspathAttribute.OPTIONAL, "true"); //$NON-NLS-1$
   }
 
+  private IPath[] toIPathList(final List<String> fileNames, final String defaultPattern) {
+    if (fileNames == null) {
+      return defaultPattern != null ? new IPath[] {IPath.fromOSString(defaultPattern)} : DEFAULT_INCLUSIONS;
+    }
+    final List<IPath> retList = new ArrayList<>();
+    for (final String files : fileNames) {
+      retList.add(IPath.fromOSString(files));
+    }
+    if (defaultPattern != null) {
+      retList.add(IPath.fromOSString(defaultPattern));
+    }
+    return retList.toArray(DEFAULT_INCLUSIONS);
+  }
+
   private void configureOverlapWithSource(IClasspathDescriptor classpath, IClasspathEntryDescriptor enclosing,
       IPath resourceFolder) {
     // resources and sources folders overlap. make sure JDT only processes java sources.