[TIKA-3223] ForkParser cannot serialize exceptions when using the ForkParser(Path, ParserFactoryFactory)

• Type: Bug
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Component/s: core
• Assignee: Unassigned
• Reporter: Nicholas DiPiazza
• Created: 04/Nov/20 13:26
• Updated: 04/Nov/20 13:26

Description

Using this project as an example https://github.com/nddipiazza/tika-fork-parser-example

Problems happen when it encounters files that throw a valid exception. Example 002164.ppt from digicorpa is encrypted, so it should throw.

When you use this constructor, you get the expected result:

try (ForkParser forkParser = new ForkParser(getClass().getClassLoader())) {

When you use this constructor

try (ForkParser forkParser = new ForkParser(Paths.get(pathToTikaMainDist), new ParserFactoryFactory("org.apache.tika.fork.main.CollectingParserFactory", parserArgs))) {

You will get a class not found exception - failing to serialize the exceptions.

org.apache.tika.exception.TikaException: Failed to communicate with a forked parser process. The process has most likely crashed due to some error like running out of memory. A new process will be started for the next parsing request.
	at org.apache.tika.fork.ForkParser.parse(ForkParser.java:275) ~[tika-core-1.24.1.jar:1.24.1]
	at org.apache.tika.client.CollectingParser.parse(CollectingParser.java:36) ~[classes/:?]
	at org.apache.tika.client.TikaAsyncMain.lambda$runThreads$0(TikaAsyncMain.java:317) ~[classes/:?]
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:515) [?:?]
	at java.util.concurrent.FutureTask.run$$$capture(FutureTask.java:264) [?:?]
	at java.util.concurrent.FutureTask.run(FutureTask.java) [?:?]
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128) [?:?]
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628) [?:?]
	at java.lang.Thread.run(Thread.java:834) [?:?]
Caused by: java.io.IOException: Unable to deserialize an exception
	at org.apache.tika.fork.ForkClient.waitForResponse(ForkClient.java:295) ~[tika-core-1.24.1.jar:1.24.1]
	at org.apache.tika.fork.ForkClient.call(ForkClient.java:209) ~[tika-core-1.24.1.jar:1.24.1]
	at org.apache.tika.fork.ForkParser.parse(ForkParser.java:267) ~[tika-core-1.24.1.jar:1.24.1]
	... 8 more
Caused by: java.lang.ClassNotFoundException: org/apache/tika/exception/EncryptedDocumentException
	at java.lang.Class.forName0(Native Method) ~[?:?]
	at java.lang.Class.forName(Class.java:398) ~[?:?]
	at org.apache.tika.fork.ForkObjectInputStream.resolveClass(ForkObjectInputStream.java:69) ~[tika-core-1.24.1.jar:1.24.1]
	at java.io.ObjectInputStream.readNonProxyDesc(ObjectInputStream.java:1995) ~[?:?]
	at java.io.ObjectInputStream.readClassDesc(ObjectInputStream.java:1862) ~[?:?]
	at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:2169) ~[?:?]
	at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1679) ~[?:?]
	at java.io.ObjectInputStream.readObject(ObjectInputStream.java:493) ~[?:?]
	at java.io.ObjectInputStream.readObject(ObjectInputStream.java:451) ~[?:?]
	at org.apache.tika.fork.ForkObjectInputStream.readObject(ForkObjectInputStream.java:110) ~[tika-core-1.24.1.jar:1.24.1]
	at org.apache.tika.fork.ForkClient.waitForResponse(ForkClient.java:292) ~[tika-core-1.24.1.jar:1.24.1]
	at org.apache.tika.fork.ForkClient.call(ForkClient.java:209) ~[tika-core-1.24.1.jar:1.24.1]
	at org.apache.tika.fork.ForkParser.parse(ForkParser.java:267) ~[tika-core-1.24.1.jar:1.24.1]
	... 8 more

But I definitely have the Exception type on the classpath. Same thing happens for any tika exception. This is not limited to EncryptedDocumentException.