Vitaly Sazanovich created BATIK-1332:
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Summary: Memory leak in
org.apache.batik.ext.awt.image.rendered.TileCache.cache
Key: BATIK-1332
URL: https://issues.apache.org/jira/browse/BATIK-1332
Project: Batik
Issue Type: Bug
Affects Versions: 1.14
Reporter: Vitaly Sazanovich
Attachments: image-2022-08-19-23-57-52-386.png
I'm using Batik to convert SVG to PNG. My Java code is:
{code:java}
public byte[] svg2png(byte[] svgBytes, float width, float height) throws
Exception {
ByteArrayOutputStream byteArrayOutputStream = new ByteArrayOutputStream();
TranscoderInput transcoderInput = new TranscoderInput(new
ByteArrayInputStream(svgBytes));
TranscoderOutput transcoderOutput = new
TranscoderOutput(byteArrayOutputStream);
PNGTranscoder pngTranscoder = new PNGTranscoder();
pngTranscoder.addTranscodingHint(PNGTranscoder.KEY_WIDTH, width);
pngTranscoder.addTranscodingHint(PNGTranscoder.KEY_HEIGHT, height);
pngTranscoder.transcode(transcoderInput, transcoderOutput);
transcoderInput.getInputStream().close();
transcoderOutput.getOutputStream().close();
byteArrayOutputStream.flush();
byteArrayOutputStream.close();
return byteArrayOutputStream.toByteArray();
} {code}
I use Spring Boot and the conversion runs in the same http request.
I started to get OOM after many conversions.
So I made a heap dump and used JProfiler to analyze it:
!image-2022-08-19-23-57-52-386.png!
The solution I have found so far (workaround) is:
{code:java}
} finally {
try {
TileCache.setSize(0);
TileCache.setSize(2);
} catch (Exception ex) {
logger.error(ex.getMessage(), ex);
}
} {code}
Setting size to just 0 causes a null pointer exception on the next run. It
looks like the cache needs some size greater than 0.
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