[DERBY-3363] AccessControlException: access denied (java.lang.RuntimePermission accessClassInPackage.sun.net.www.protocol.c)

• Type: Bug
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Affects Version/s: 10.3.2.1
• Component/s: Services, Tools
• Labels: derby_triage10_5_2

Environment

------------------ Java Information ------------------
Java Version: 1.5.0_11
Java Vendor: Sun Microsystems Inc.
Java home: C:\Program Files\Java\jre1.5.0_11
Java classpath: derby.jar
OS name: Windows XP
OS architecture: x86
OS version: 5.1
Java user name: Guo Qiang
Java user home: C:\Documents and Settings\Guo Qiang
Java user dir: C:\Repertoire-Server-20080118\RepertoireServer\lib
java.specification.name: Java Platform API Specification
java.specification.version: 1.5
--------- Derby Information --------
JRE - JDBC: J2SE 5.0 - JDBC 3.0
[C:\Repertoire-Server-20080118\RepertoireServer\lib\derby.jar] 10.3.2.1 - (59911
0)

• Urgency: Normal
• Bug behavior facts: Security
• Assignee: Unassigned
• Reporter: Song Guo Qiang
• Created: 30/Jan/08 07:49
• Updated: 15/Feb/11 21:08

Description

I got one AccessControlException when I tried to backup my derby database using code like:

Statement statement;
String dbPath;
...

statement.executeUpdate("CALL SYSCS_UTIL.SYSCS_BACKUP_DATABASE('" + dbPath + "')");

==

I run my code with the default security manager installed. The exception stack trace is:

java.security.AccessControlException: access denied (java.lang.RuntimePermission
accessClassInPackage.sun.net.www.protocol.c)
at java.security.AccessControlContext.checkPermission(AccessControlConte
xt.java:264)
at java.security.AccessController.checkPermission(AccessController.java:
427)
at java.lang.SecurityManager.checkPermission(SecurityManager.java:532)
at java.lang.SecurityManager.checkPackageAccess(SecurityManager.java:151
2)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:265)
at java.lang.ClassLoader.loadClass(ClassLoader.java:251)
at java.net.URL.getURLStreamHandler(URL.java:1141)
at java.net.URL.<init>(URL.java:572)
at java.net.URL.<init>(URL.java:464)
at java.net.URL.<init>(URL.java:413)
at org.apache.derby.impl.store.raw.RawStore.backup(Unknown Source)
at org.apache.derby.impl.store.access.RAMAccessManager.backup(Unknown So
urce)
at org.apache.derby.impl.db.BasicDatabase.backup(Unknown Source)
at org.apache.derby.catalog.SystemProcedures.SYSCS_BACKUP_DATABASE(Unkno
wn Source)
at org.apache.derby.exe.ac3a7f0048x0117xc98bxe062x0000001202800.g0(Unkno
wn Source)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.
java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAcces
sorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:585)
at org.apache.derby.impl.services.reflect.ReflectMethod.invoke(Unknown S
ource)
at org.apache.derby.impl.sql.execute.CallStatementResultSet.open(Unknown
Source)
at org.apache.derby.impl.sql.GenericPreparedStatement.execute(Unknown So
urce)
at org.apache.derby.impl.jdbc.EmbedStatement.executeStatement(Unknown So
urce)
at org.apache.derby.impl.jdbc.EmbedStatement.execute(Unknown Source)
at org.apache.derby.impl.jdbc.EmbedStatement.executeUpdate(Unknown Sourc
e)
at com.elixirtech.ers2.db.DBSystem.systemUpdate(Unknown Source)

==

I did some quick debug. I guess the problem happens because Derby generates some classes on the fly but forgets to assign proper security domains when loading the generated classes (such as 'org.apache.derby.exe.ac3a7f0048x0117xc98bxe062x0000001202800'). When the generated code tried to access some sun.* packages, the security check failed.

Ideally, Derby code should call

ClassLoader.defineClass(String name, byte[] b, int off, int len, ProtectionDomain protectionDomain)

instead of

ClassLoader.defineClass(String name, byte[] b, int off, int len)