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#712 Core: Fix possible OOM situation in new stream implementation

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(cherry picked from commit 8f5c1b409f)
This commit is contained in:
Harald Kuhr
2022-11-21 16:15:21 +01:00
parent debf7d0207
commit 6840f31fa3
2 changed files with 35 additions and 4 deletions
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imageio/imageio-core/src/test/java/com/twelvemonkeys/imageio/stream/BufferedChannelImageInputStreamMemoryCacheTest.java
+18
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@@ -402,6 +402,24 @@ public class BufferedChannelImageInputStreamMemoryCacheTest {
assertEquals(-1, stream.read());
}
}
@Test
public void testSeekWayPastEOFShouldNotThrowOOME() throws IOException {
byte[] bytes = new byte[9];
InputStream input = randomDataToInputStream(bytes);
try (final ImageInputStream stream = new BufferedChannelImageInputStream(new MemoryCache(input))) {
stream.seek(Integer.MAX_VALUE * 4L * 512L); // ~4 TB
assertEquals(-1, stream.read()); // No OOME should happen...
stream.seek(0);
for (byte value : bytes) {
assertEquals(value, stream.readByte());
}
assertEquals(-1, stream.read());
}
}
@Test
public void testClose() throws IOException {