I have a servlet which I am trying to run under Tomcat 5.5.9 which has a
background thread in it. This thread uses JDBC, and in particular the
Postgresql JDBC driver. This driver uses PhantomReferences in order to
tidy up the underlying C objects.
But when it comes to use the PhantomReference it gets:-
at
org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1221)
at
org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1181)
at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:319)
at
org.postgresql.core.v3.QueryExecutorImpl.registerParsedQuery(QueryExecutorImpl.java:1092)
at
org.postgresql.core.v3.QueryExecutorImpl.processResults(QueryExecutorImpl.java:1177)
at
org.postgresql.core.v3.QueryExecutorImpl.execute(QueryExecutorImpl.java:188)
at
org.postgresql.jdbc2.AbstractJdbc2Statement.execute(AbstractJdbc2Statement.java:430)
at
org.postgresql.jdbc2.AbstractJdbc2Statement.executeWithFlags(AbstractJdbc2Statement.java:346)
at
org.postgresql.jdbc2.AbstractJdbc2Statement.executeQuery(AbstractJdbc2Statement.java:250)
The line in registerParsedQuery that is failing is:-
PhantomReference cleanupRef = new PhantomReference(query,
parsedQueryCleanupQueue);
This should work on any JDK since Java 1.2. I am running this with the Sun
1.5 SDK.
Is this a sandbox problem? If so what do I need to set in order to allow
this to work?
Anyone got any idea why this might be failing?
David
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