SecurityException with accessDeclaredMembers on DatabaseMetaData.getTables.

• Key: DERBY-656
• Type: Bug
• Status: Closed
• Resolution: Fixed
• Priority: Major
• Assignee: Daniel John Debrunner
• Reporter: Daniel John Debrunner
• Affects Version/s: 10.1.1.0
• Fix Version/s: 10.1.2.1, 10.2.1.6

Description

The code to determine the size of a class is using getDeclaredMembers which requires the permission accessDeclaredMembers. Ideally should not require to grant this permission to derby.jar. Need to see which
class's size was being calculated. The code is not in a priv block which would require granting the permission all the way up the stack.

Maybe if the class's declared memebrs can not be accessed and the value can not be pre-calculkated then some estimate could be made. (using public fields?).

java.security.AccessControlException: Access denied
(java.lang.RuntimePermission accessDeclaredMembers)
       at
java.security.AccessController.checkPermission(AccessController.
java:107)
       at
java.lang.SecurityManager.checkPermission(SecurityManager.java:5
47)
       at
com.ibm.ws.security.core.SecurityManager.checkPermission(Securit
yManager.java:188)
       at
java.lang.SecurityManager.checkMemberAccess(SecurityManager.java
:1677)
       at java.lang.Class.checkMemberAccess(Class.java:104)
       at java.lang.Class.getDeclaredFields(Class.java:508)
       at
org.apache.derby.iapi.services.cache.ClassSize.getSizeCoefficien
ts(Unknown Source)
       at
org.apache.derby.iapi.services.cache.ClassSize.estimateBase(Unkn
own Source)
       at
org.apache.derby.iapi.store.access.BackingStoreHashtable.<cli
nit>(Unknown Source)
       at java.lang.J9VMInternals.initializeImpl(Native
Method)
       at
java.lang.J9VMInternals.initialize(J9VMInternals.java:148)
       at
org.apache.derby.impl.sql.execute.HashTableResultSet.openCore(Un
known Source)
       at
org.apache.derby.impl.sql.execute.JoinResultSet.openRight(Unknow
n Source)
       at
org.apache.derby.impl.sql.execute.JoinResultSet.openCore(Unknown
 Source)
       at
org.apache.derby.impl.sql.execute.ProjectRestrictResultSet.openC
ore(Unknown Source)
       at
org.apache.derby.impl.sql.execute.SortResultSet.openCore(Unknown
 Source)
       at
org.apache.derby.impl.sql.execute.BasicNoPutResultSetImpl.open(U
nknown Source)
       at
org.apache.derby.impl.sql.GenericPreparedStatement.execute(Unkno
wn Source)
       at
org.apache.derby.impl.jdbc.EmbedStatement.executeStatement(Unkno
wn Source)
       at
org.apache.derby.impl.jdbc.EmbedPreparedStatement.executeStateme
nt(Unknown Source)
       at
org.apache.derby.impl.jdbc.EmbedPreparedStatement.executeQuery(U
nknown Source)
       at
org.apache.derby.impl.jdbc.EmbedDatabaseMetaData.getTables(Unkno
wn Source)