import com.intellij.openapi.roots.libraries.DummyLibraryProperties; //导入依赖的package包/类
@Override
public NewLibraryConfiguration createNewLibrary(@NotNull JComponent jComponent, @Nullable VirtualFile virtualFile,
                                                @NotNull Project project) {
    final FileChooserDescriptor descriptor = FileChooserDescriptorFactory.createAllButJarContentsDescriptor();
    descriptor.setTitle(LuaBundle.message("new.library.file.chooser.title"));
    descriptor.setDescription(LuaBundle.message("new.library.file.chooser.description"));
    final VirtualFile[] files = FileChooser.chooseFiles(descriptor, jComponent, project, virtualFile);
    if (files.length == 0) {
        return null;
    }
    return new NewLibraryConfiguration("Lua Library", this, new DummyLibraryProperties()) {
        @Override
        public void addRoots(@NotNull LibraryEditor editor) {
            for (VirtualFile file : files) {
                editor.addRoot(file, OrderRootType.CLASSES);
            }
        }
    };
}
 

import com.intellij.openapi.roots.libraries.DummyLibraryProperties; //导入依赖的package包/类
@Override
public DummyLibraryProperties detect(@NotNull List<VirtualFile> classesRoots) {
    for (VirtualFile vf : classesRoots) {
        if (!vf.isDirectory())
            return null;

        for(VirtualFile file : vf.getChildren()) {
            String fileExtension = file.getExtension();
            if (fileExtension != null)
                if (fileExtension.equals(LuaFileType.DEFAULT_EXTENSION))
                    return new DummyLibraryProperties();
        }
    }

    return null;
}
 

import com.intellij.openapi.roots.libraries.DummyLibraryProperties; //导入依赖的package包/类
@Nullable
public DummyLibraryProperties detect(@NotNull List<VirtualFile> classesRoots) {
    for (VirtualFile root : classesRoots) {
        if (SquirrelSdkService.isSquirrelSdkLibRoot(root)) {
            return DummyLibraryProperties.INSTANCE;
        }
    }
    return null;
}
 

import com.intellij.openapi.roots.libraries.DummyLibraryProperties; //导入依赖的package包/类
protected SandLibraryType() {
  super(new PersistentLibraryKind<DummyLibraryProperties>("sand") {
    @Nonnull
    @Override
    public DummyLibraryProperties createDefaultProperties() {
      return new DummyLibraryProperties();
    }
  });
}
 

import com.intellij.openapi.roots.libraries.DummyLibraryProperties; //导入依赖的package包/类
@NotNull
@Override
public DummyLibraryProperties createDefaultProperties() {
  return DummyLibraryProperties.INSTANCE;
}
 

import com.intellij.openapi.roots.libraries.DummyLibraryProperties; //导入依赖的package包/类
@Nullable
@Override
public LibraryPropertiesEditor createPropertiesEditor(@NotNull LibraryEditorComponent<DummyLibraryProperties> editorComponent) {
  return null;
}
 

import com.intellij.openapi.roots.libraries.DummyLibraryProperties; //导入依赖的package包/类
@NotNull
@Override
public DummyLibraryProperties createDefaultProperties() {
    return new DummyLibraryProperties();
}
 

import com.intellij.openapi.roots.libraries.DummyLibraryProperties; //导入依赖的package包/类
@Override
public LibraryPropertiesEditor createPropertiesEditor(@NotNull LibraryEditorComponent<DummyLibraryProperties>
                                                              libraryPropertiesLibraryEditorComponent) {

    return null;
}
 

import com.intellij.openapi.roots.libraries.DummyLibraryProperties; //导入依赖的package包/类
@NotNull
@Override
public DummyLibraryProperties createDefaultProperties() {
  return new DummyLibraryProperties();
}
 

import com.intellij.openapi.roots.libraries.DummyLibraryProperties; //导入依赖的package包/类
@Override
public LibraryPropertiesEditor createPropertiesEditor(@NotNull LibraryEditorComponent<DummyLibraryProperties> component) {
  return null;
}
 

import com.intellij.openapi.roots.libraries.DummyLibraryProperties; //导入依赖的package包/类
@javax.annotation.Nullable
@Override
public LibraryPropertiesEditor createPropertiesEditor(@Nonnull LibraryEditorComponent<DummyLibraryProperties> editorComponent) {
  return null;
}