Java Georaster API error - wrong java version

Hi all. I've done some searching about but cannot see this question answered (or indeed asked) anywhere else so perhaps i'm the first person to encounter it.
I've got some georaster data from a customer in an Oracle DMP file which i've imported. It all checks out as being valid (using sdo_geor.validategeoraster) but i cannot view it in the Georaster Viewer tool. I wrote some java to extract a piece to a file but i get this error with the select command ...
DEBUG <10:27:51> [GeoRaster] jGeor.getRasterImage(conn,0,600, 1199, 1801, 2400 )
ERROR <10:27:51> [GeoRaster] Failed to getRasterImage() because of a GeoRasterException : -13464;GeoRaster object has float or double data type.
It can be retrieved only with Java version 1.4.1 or higher.
Java version found: 1.5
ERROR <10:27:51> [GeoRaster] stack trace is ...
DEBUG <10:27:51> [GeoRaster] 0  oracle.spatial.georaster.JGeoRaster.getColorModel(JGeoRaster.java:1276)
DEBUG <10:27:51> [GeoRaster] 1  oracle.spatial.georaster.JGeoRaster.getRasterImage(JGeoRaster.java:2568)
DEBUG <10:27:51> [GeoRaster] 2  com.espatial.ps.georaster.GeoRaster.getRenderedImage(GeoRaster.java:736)
DEBUG <10:27:51> [GeoRaster] 3  com.espatial.ps.utilities.TemplateApplicationHelper.testExport(TemplateApplicationHelper.java:294)
DEBUG <10:27:51> [GeoRaster] 4  com.espatial.ps.utilities.TemplateApplicationHelper.main(TemplateApplicationHelper.java:130)If I query the georaster I get this ...
ORCL10GR:SQL> SELECT georaster FROM intermap_iscsi.CORE_DTM g WHERE g.georaster.RASTERDATATABLE = 'CORE_DTM_RDT_01' AND g.georid = 101;
GEORASTER(RASTERTYPE, SPATIALEXTENT(SDO_GTYPE, SDO_SRID, SDO_POINT(X, Y, Z), SDO_ELEM_INFO, SDO_ORDINATES), RASTERDATATABLE, RASTERID, METADATA)
SDO_GEORASTER(20001, SDO_GEOMETRY(2003, 8265, NULL, SDO_ELEM_INFO_ARRAY(1, 1003, 1), SDO_ORDINATE_ARRAY(-114.87502, 35.0000208, -114.87502, 34.93
75, -114.87502, 34.8749792, -114.8125, 34.8749792, -114.74998, 34.8749792, -114.74998, 34.9375, -114.74998, 35.0000208, -114.8125, 35.0000208, -1
14.87502, 35.0000208)), 'CORE_DTM_RDT_01', 101, XMLTYPE(<georasterMetadata xmlns="http://xmlns.oracle.com/spatial/georaster">
  <objectI))I'm running my java program with JDK 1.5.0_11 so that error about needing 1.4.1 or higher is odd. Is it to do with the Oracle instance needing that JDK? Anyone got any ideas?
John.

Looks like the code is explicitly checking for a specific version of Java without doing a greater than check, you'll have to trick the API
Before you call the JGeoRaster Method, call:
String temp = System.getProperty("java.specification.version");
System.setProperty( "java.specification.version", "1.4.1" );
the after call:
System.setProperty("java.specification.version", temp);
Alternatively, the JGeoRaster library that comes with 11g has a fix for this issue.

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                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         

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