From f06fdf9cc64c3e767daaa08ad2c23fe5925ce2a4 Mon Sep 17 00:00:00 2001
From: Dmitry Avdeev <dmitry.avdeev@jetbrains.com>
Date: Mon, 12 Apr 2021 14:29:21 +0300
Subject: [PATCH] IDEA-266461 JSP Tag Plugin completion broken in IDEA 2021.1

avoid UnsupportedOperationException caused by files in jar

GitOrigin-RevId: 21a5b8d5b2e98b6c4a7f17cdd9296ef9572eae40
---
 java/jsp-spi/src/com/intellij/psi/jsp/JspSpiUtil.java | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/java/jsp-spi/src/com/intellij/psi/jsp/JspSpiUtil.java b/java/jsp-spi/src/com/intellij/psi/jsp/JspSpiUtil.java
index 7d419ea74bca..5da8dc8a0c8b 100644
--- a/java/jsp-spi/src/com/intellij/psi/jsp/JspSpiUtil.java
+++ b/java/jsp-spi/src/com/intellij/psi/jsp/JspSpiUtil.java
@@ -135,7 +135,10 @@ public abstract class JspSpiUtil {
     List<Path> result = new ArrayList<>();
     processClassPathItems(virtualFile, module, file -> {
       if (file != null && file.isValid()) {
-        result.add(file.toNioPath());
+        Path path = file.getFileSystem().getNioPath(file);
+        if (path != null) {
+          result.add(path);
+        }
       }
     }, includeModuleOutput);
     return result;