Add separator to an already existing path only

main/jvmfwk/source/fwkbase.cxx

diff --git a/main/jvmfwk/source/fwkbase.cxx b/main/jvmfwk/source/fwkbase.cxx
index 293153c..f5cab3f 100644
--- a/main/jvmfwk/source/fwkbase.cxx
+++ b/main/jvmfwk/source/fwkbase.cxx
@@ -398,7 +398,10 @@
         char * pCp = getenv("CLASSPATH");
         if (pCp)
         {
-            sClassPath += rtl::OString(szSep) + rtl::OString(pCp);
+            if (sClassPath.getLength()) {
+                sClassPath += rtl::OString(szSep);
+            }
+            sClassPath += rtl::OString(pCp);
         }
 #if OSL_DEBUG_LEVEL >=2
         fprintf(stderr,"[Java framework] Using bootstrap parameter "