Bug 66425: Avoid a ClassCastException found via oss-fuzz

We try to avoid throwing ClassCastException but it was possible
to trigger one here with a specially crafted input-file

Should fix https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=61162

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1911459 13f79535-47bb-0310-9956-ffa450edef68

1 files changed, 2 insertions, 8 deletions

diff --git a/poi-integration/src/test/java/org/apache/poi/stress/HPBFFileHandler.java b/poi-integration/src/test/java/org/apache/poi/stress/HPBFFileHandler.java
index 5897803e74..a9e10430ac 100644
--- a/poi-integration/src/test/java/org/apache/poi/stress/HPBFFileHandler.java
+++ b/poi-integration/src/test/java/org/apache/poi/stress/HPBFFileHandler.java
@@ -45,22 +45,16 @@ public class HPBFFileHandler extends POIFSFileHandler {
     void test() throws Exception {
         File file = new File("test-data/publisher/SampleBrochure.pub");
 
-        InputStream stream = new FileInputStream(file);
-        try {
+        try (InputStream stream = new FileInputStream(file)) {
             handleFile(stream, file.getPath());
-        } finally {
-            stream.close();
         }
 
         handleExtracting(file);
 
-        stream = new FileInputStream(file);
-        try {
+        try (InputStream stream = new FileInputStream(file)) {
             try (PublisherTextExtractor extractor = new PublisherTextExtractor(stream)) {
                 assertNotNull(extractor.getText());
             }
-        } finally {
-            stream.close();
         }
     }