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https://issues.apache.org/jira/browse/DERBY-5615?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13949127#comment-13949127
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Knut Anders Hatlen commented on DERBY-5615:
-------------------------------------------
According to git bisect, the NPE was fixed by revision 1400024, with the
following commit message:
{quote}
DERBY-5947: Factor out common code from generated classes
Move authorization check for CursorNodes from generated code to
CursorActivation.
{quote}
Maybe there's a check on a permission that we have granted to derby.jar (such
as read permission on the jar file that contains the db?) that fails because
the permission is not granted to the generated code, and the permission check
succeeds now when it is not called from generated code. Two of the stack frames
in the bug description are from generated code, so at least it is a possibility.
> NPE in Store when running SELECT in a read-only database accessed via the
> classpath subprotocol when authentication, authorization, and Java security
> are turned on
> --------------------------------------------------------------------------------------------------------------------------------------------------------------------
>
> Key: DERBY-5615
> URL: https://issues.apache.org/jira/browse/DERBY-5615
> Project: Derby
> Issue Type: Bug
> Components: SQL, Store
> Affects Versions: 10.9.1.0
> Reporter: Rick Hillegas
> Labels: derby_triage10_9
> Attachments: 5615.policy, 5615_bug.sql, 5615_init.sql, 5615_script,
> derby.log, derby.log
>
>
> I get an NPE trying to select from a table on which I don't have select
> privilege. The database is stored in a jar file accessed via the classpath
> protocol. BUILTIN authentication and sql authorization are turned on in the
> database. Running under a Java security manager. I will attach a repro. Here
> is the NPE:
> Failed Statement is: select * from KIWI.t
> java.lang.NullPointerException
> at
> org.apache.derby.impl.store.raw.data.BaseDataFileFactory.openContainer(BaseDataFileFactory.java:661)
> at
> org.apache.derby.impl.store.raw.data.BaseDataFileFactory.openContainer(BaseDataFileFactory.java:591)
> at
> org.apache.derby.impl.store.raw.xact.Xact.openContainer(Xact.java:1316)
> at
> org.apache.derby.impl.store.access.btree.OpenBTree.init(OpenBTree.java:380)
> at
> org.apache.derby.impl.store.access.btree.BTreeController.init(BTreeController.java:1250)
> at
> org.apache.derby.impl.store.access.btree.index.B2IController.init(B2IController.java:140)
> at org.apache.derby.impl.store.access.btree.index.B2I.open(B2I.java:821)
> at
> org.apache.derby.impl.store.access.RAMTransaction.openConglomerate(RAMTransaction.java:476)
> at
> org.apache.derby.impl.store.access.RAMTransaction.openConglomerate(RAMTransaction.java:1308)
> at
> org.apache.derby.impl.sql.catalog.DataDictionaryImpl.debugGenerateInfo(DataDictionaryImpl.java:9584)
> at
> org.apache.derby.impl.sql.catalog.DataDictionaryImpl.getDescriptorViaIndexMinion(DataDictionaryImpl.java:9492)
> at
> org.apache.derby.impl.sql.catalog.DataDictionaryImpl.getDescriptorViaIndex(DataDictionaryImpl.java:9303)
> at
> org.apache.derby.impl.sql.catalog.DataDictionaryImpl.getColumnDescriptorsScan(DataDictionaryImpl.java:2887)
> at
> org.apache.derby.impl.sql.catalog.DataDictionaryImpl.getColumnDescriptorsScan(DataDictionaryImpl.java:2851)
> at
> org.apache.derby.impl.sql.catalog.DataDictionaryImpl.finishTableDescriptor(DataDictionaryImpl.java:2408)
> at
> org.apache.derby.impl.sql.catalog.DataDictionaryImpl.getTableDescriptorIndex1Scan(DataDictionaryImpl.java:2277)
> at
> org.apache.derby.impl.sql.catalog.DataDictionaryImpl.getUncachedTableDescriptor(DataDictionaryImpl.java:2293)
> at
> org.apache.derby.impl.sql.catalog.NameTDCacheable.setIdentity(NameTDCacheable.java:110)
> at
> org.apache.derby.impl.services.cache.ConcurrentCache.find(ConcurrentCache.java:295)
> at
> org.apache.derby.impl.sql.catalog.DataDictionaryImpl.getTableDescriptor(DataDictionaryImpl.java:2224)
> at
> org.apache.derby.impl.sql.catalog.DataDictionaryImpl.faultInTabInfo(DataDictionaryImpl.java:9905)
> at
> org.apache.derby.impl.sql.catalog.DataDictionaryImpl.getNonCoreTI(DataDictionaryImpl.java:9702)
> at
> org.apache.derby.impl.sql.catalog.DataDictionaryImpl.getUncachedPermissionsDescriptor(DataDictionaryImpl.java:13712)
> at
> org.apache.derby.impl.sql.catalog.DataDictionaryImpl.getUncachedTablePermsDescriptor(DataDictionaryImpl.java:13660)
> at
> org.apache.derby.impl.sql.catalog.PermissionsCacheable.setIdentity(PermissionsCacheable.java:71)
> at
> org.apache.derby.impl.services.cache.ConcurrentCache.find(ConcurrentCache.java:295)
> at
> org.apache.derby.impl.sql.catalog.DataDictionaryImpl.getPermissions(DataDictionaryImpl.java:13364)
> at
> org.apache.derby.impl.sql.catalog.DataDictionaryImpl.getTablePermissions(DataDictionaryImpl.java:13350)
> at
> org.apache.derby.iapi.sql.dictionary.StatementTablePermission.oneAuthHasPermissionOnTable(StatementTablePermission.java:239)
> at
> org.apache.derby.iapi.sql.dictionary.StatementTablePermission.hasPermissionOnTable(StatementTablePermission.java:160)
> at
> org.apache.derby.iapi.sql.dictionary.StatementColumnPermission.check(StatementColumnPermission.java:99)
> at
> org.apache.derby.impl.sql.conn.GenericAuthorizer.authorize(GenericAuthorizer.java:183)
> at
> org.apache.derby.exe.ac40348015x0135x7cc7x4621x0000040700000.fillResultSet(Unknown
> Source)
> at
> org.apache.derby.exe.ac40348015x0135x7cc7x4621x0000040700000.execute(Unknown
> Source)
> at
> org.apache.derby.impl.sql.GenericActivationHolder.execute(GenericActivationHolder.java:353)
> at
> org.apache.derby.impl.sql.GenericPreparedStatement.executeStmt(GenericPreparedStatement.java:441)
> at
> org.apache.derby.impl.sql.GenericPreparedStatement.execute(GenericPreparedStatement.java:324)
> at
> org.apache.derby.impl.jdbc.EmbedStatement.executeStatement(EmbedStatement.java:1242)
> at
> org.apache.derby.impl.jdbc.EmbedStatement.execute(EmbedStatement.java:630)
> at
> org.apache.derby.impl.jdbc.EmbedStatement.execute(EmbedStatement.java:559)
> at org.apache.derby.impl.tools.ij.ij.executeImmediate(ij.java:367)
> at org.apache.derby.impl.tools.ij.utilMain.doCatch(utilMain.java:527)
> at
> org.apache.derby.impl.tools.ij.utilMain.runScriptGuts(utilMain.java:372)
> at org.apache.derby.impl.tools.ij.utilMain.go(utilMain.java:245)
> at org.apache.derby.impl.tools.ij.Main.go(Main.java:229)
> at org.apache.derby.impl.tools.ij.Main.mainCore(Main.java:184)
> at org.apache.derby.impl.tools.ij.Main.main(Main.java:75)
> at org.apache.derby.tools.ij.main(ij.java:59)
> Cleanup action completed
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