Tim Allison created TIKA-4575:
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Summary: Race condition in CI windows with unzipping pf4j plugin
Key: TIKA-4575
URL: https://issues.apache.org/jira/browse/TIKA-4575
Project: Tika
Issue Type: Task
Reporter: Tim Allison
We recently had what look like race conditions in unzipping pf4j plugins in
tika-app unit tests on github.
The exception looks like this:
{noformat}
org.apache.tika.pipes.core.ServerInitializationException:
java.io.FileNotFoundException:
D:\a\tika\tika\tika-app\target\plugins\tika-pipes-file-system-4.0.0-SNAPSHOT.zip.lock
(The process cannot access the file because it is being used by another
process)
at java.base/java.io.RandomAccessFile.open0(Native Method)
at java.base/java.io.RandomAccessFile.open(RandomAccessFile.java:344)
at java.base/java.io.RandomAccessFile.<init>(RandomAccessFile.java:259)
at java.base/java.io.RandomAccessFile.<init>(RandomAccessFile.java:213)
at
org.apache.tika.plugins.ThreadSafeUnzipper.unzipPlugin(ThreadSafeUnzipper.java:47)
at
org.apache.tika.plugins.TikaPluginManager.unzip(TikaPluginManager.java:135)
at
org.apache.tika.plugins.TikaPluginManager.init(TikaPluginManager.java:119)
at
org.apache.tika.plugins.TikaPluginManager.<init>(TikaPluginManager.java:97)
at
org.apache.tika.plugins.TikaPluginManager.load(TikaPluginManager.java:79)
at
org.apache.tika.pipes.core.server.PipesServer.initializeResources(PipesServer.java:455)
at
org.apache.tika.pipes.core.server.PipesServer.load(PipesServer.java:175)
at
org.apache.tika.pipes.core.server.PipesServer.main(PipesServer.java:241)
{noformat}
We need to add more, ahem, safety to the ThreadSafeUnzipper.
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