ignore warnings when compiling the build

h2/build.bat

@@ -2,6 +2,6 @@
 if "%JAVA_HOME%"=="" echo Error: JAVA_HOME is not defined.
 if exist bin/org/h2/build/Build.class goto buildOK
 if not exist bin mkdir bin
-javac -sourcepath src/tools -d bin src/tools/org/h2/build/*.java
+javac -nowarn -sourcepath src/tools -d bin src/tools/org/h2/build/*.java
 :buildOK
 java -Xmx512m -cp "bin;%JAVA_HOME%/lib/tools.jar;temp" org.h2.build.Build %1 %2 %3 %4 %5
\ No newline at end of file

h2/build.sh

@@ -6,6 +6,6 @@ if [ ! -f "bin/org/h2/build/Build.class" ] ; then
   if [ ! -d "bin" ] ; then
     mkdir bin
   fi
-  javac -sourcepath src/tools -d bin src/tools/org/h2/build/*.java
+  javac -nowarn -sourcepath src/tools -d bin src/tools/org/h2/build/*.java
 fi
 java -Xmx512m -cp "bin:$JAVA_HOME/lib/tools.jar:temp" org.h2.build.Build $@