NPE at org.jboss.resteasy.plugins.providers.multipart.Mime4JWorkaround$CustomTempFileStorageProvider.createStorageOutputStream(Mime4JWorkaround.java:146) after applying EAP 7.4 Update 10

Solution Verified - Updated

Environment

  • Red Hat JBoss Enterprise Application Platform (EAP) 7.4 Update 10
  • Red Hat Single Sign-On (RHSSO) 7.6.3

Issue

  • After updating to JBoss EAP 7.4 Update 10 (from Update 9) and validating, we are running into a NullPointerException in org.jboss.resteasy.plugins.providers.multipart.Mime4JWorkaround.CustomTempFileStorageProvider#createStorageOutputStream. The java.lang.NullPointerException is not logged and is only returned in the response with a 400 error status.

Resolution

Apply Update 11 or later where This content is not included.JBEAP-24719 is fixed.

Until then, set this system property as a workaround:

-Dorg.apache.james.mime4j.defaultStorageProvider=org.apache.james.mime4j.storage.TempFileStorageProvider

Root Cause

This content is not included.JBEAP-24719 / This content is not included.RESTEASY-3290 - NPE at org.jboss.resteasy.plugins.providers.multipart.Mime4JWorkaround$CustomTempFileStorageProvider.createStorageOutputStream(Mime4JWorkaround.java:146)

Diagnostic Steps

  • Reproduce with byteman using a rule like below:
RULE writeException
CLASS ^org.jboss.resteasy.core.SynchronousDispatcher
METHOD writeException
AT EXIT
IF TRUE
DO 
$3.printStackTrace()
ENDRULE

RULE brinit
CLASS ^org.jboss.resteasy.specimpl.BuiltResponse
METHOD <init>
AT EXIT
IF TRUE
DO traceStack("GSS BuiltResponse.init: " + $1 + "\n")
ENDRULE

RULE restEasysetstatus
CLASS ^org.jboss.resteasy.specimpl.BuiltResponse
METHOD setStatus
AT EXIT
IF TRUE
DO traceStack("GSS BuiltResponse.setStatus: " + $1 + "\n")
ENDRULE

RULE HttpServerExchange
CLASS io.undertow.server.HttpServerExchange
METHOD setStatusCode
AT EXIT
IF TRUE
DO traceStack("GSS HttpServerExchange.setStatusCode: " + $1 + "\n")
ENDRULE
  • You should then be able to see the NullPointerException logged to confirm it is the cause:
14:41:35,543 ERROR [stderr] (default task-1) Caused by: java.lang.NullPointerException
14:41:35,543 ERROR [stderr] (default task-1) 	at org.jboss.resteasy.plugins.providers.multipart.Mime4JWorkaround$CustomTempFileStorageProvider.createStorageOutputStream(Mime4JWorkaround.java:134)
14:41:35,543 ERROR [stderr] (default task-1) 	at org.apache.james.mime4j.storage.ThresholdStorageProvider$ThresholdStorageOutputStream.write0(ThresholdStorageProvider.java:113)
14:41:35,543 ERROR [stderr] (default task-1) 	at org.apache.james.mime4j.storage.StorageOutputStream.write(StorageOutputStream.java:119)
14:41:35,543 ERROR [stderr] (default task-1) 	at org.apache.james.mime4j.util.ContentUtil.copy(ContentUtil.java:84)
14:41:35,543 ERROR [stderr] (default task-1) 	at org.apache.james.mime4j.storage.AbstractStorageProvider.store(AbstractStorageProvider.java:57)
14:41:35,543 ERROR [stderr] (default task-1) 	at org.apache.james.mime4j.storage.StorageBodyFactory.binaryBody(StorageBodyFactory.java:94)
14:41:35,543 ERROR [stderr] (default task-1) 	at org.jboss.resteasy.plugins.providers.multipart.Mime4jWorkaroundBinaryEntityBuilder.body(Mime4jWorkaroundBinaryEntityBuilder.java:177)
14:41:35,543 ERROR [stderr] (default task-1) 	at org.apache.james.mime4j.parser.MimeStreamParser.parse(MimeStreamParser.java:133)
14:41:35,543 ERROR [stderr] (default task-1) 	at org.jboss.resteasy.plugins.providers.multipart.Mime4JWorkaround.parseMessage(Mime4JWorkaround.java:95)
14:41:35,543 ERROR [stderr] (default task-1) 	at org.jboss.resteasy.plugins.providers.multipart.MultipartInputImpl.parse(MultipartInputImpl.java:102)
14:41:35,543 ERROR [stderr] (default task-1) 	at org.jboss.resteasy.plugins.providers.multipart.MultipartFormDataReader.readFrom(MultipartFormDataReader.java:53)
14:41:35,543 ERROR [stderr] (default task-1) 	at org.jboss.resteasy.plugins.providers.multipart.MultipartFormDataReader.readFrom(MultipartFormDataReader.java:23)
14:41:35,543 ERROR [stderr] (default task-1) 	at org.jboss.resteasy.core.interception.AbstractReaderInterceptorContext.readFrom(AbstractReaderInterceptorContext.java:66)
14:41:35,543 ERROR [stderr] (default task-1) 	at org.jboss.resteasy.core.interception.ServerReaderInterceptorContext.readFrom(ServerReaderInterceptorContext.java:61)
14:41:35,543 ERROR [stderr] (default task-1) 	at org.jboss.resteasy.core.interception.AbstractReaderInterceptorContext.proceed(AbstractReaderInterceptorContext.java:56)
14:41:35,543 ERROR [stderr] (default task-1) 	at org.jboss.resteasy.security.doseta.DigitalVerificationInterceptor.aroundReadFrom(DigitalVerificationInterceptor.java:36)
14:41:35,543 ERROR [stderr] (default task-1) 	at org.jboss.resteasy.core.interception.AbstractReaderInterceptorContext.proceed(AbstractReaderInterceptorContext.java:59)
14:41:35,543 ERROR [stderr] (default task-1) 	at org.jboss.resteasy.core.MessageBodyParameterInjector.inject(MessageBodyParameterInjector.java:198)
14:41:35,543 ERROR [stderr] (default task-1) 	... 65 more
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