Método com retorno de vetor

public String[] getAllTest(IProject project) throws JavaModelException{
		
		IJavaProject javaProject = JavaCore.create(project);
		IPackageFragment[] packages = javaProject.getPackageFragments();
		
                // pacages[] vetor pacotoes;

		for(IPackageFragment mypackage : packages){
			if(mypackage.getKind() == IPackageFragmentRoot.K_SOURCE){
															
				for(ICompilationUnit unit : mypackage.getCompilationUnits()){
					
					  IType[] allTypes = unit.getAllTypes();
					    for (IType type : allTypes) {
					    	
                                                  // allTypes[] vetor classes;

						IMethod[] methods = type.getMethods();
					    	IField[] fields = type.getFields();

                                                  // methods[] vetor metodos;
                                                  // fields[] vetor campos;
					    	
						for (IMetodo method : methods) {
					    		
					    	}
					    	
						for (IField field : fields){
					    		
					    	}
					    }
				}
			}
		}
		
		return arrayDados;
	}