riscv64: fix OOM build failure

(cherry picked from commit b40636b8628079dee012725b2be21880250a4499)

apache-poi.spec

@@ -1,7 +1,7 @@
 %global reldate 20170915
 Name:                apache-poi
 Version:             3.17
-Release:             5
+Release:             6
 Summary:             The Java API for Microsoft Documents
 License:             Apache-2.0 and GPL-3.0-only
 URL:                 http://poi.apache.org/
@@ -100,7 +100,7 @@ sed -i '$d' src/ooxml/testcases/org/apache/poi/TestPOIXMLDocument.java
 %build
 %if "%{_arch}" == "riscv64"
 sed -i -E 's/timeout=60000/timeout=500000/' src/ooxml/testcases/org/apache/poi/xssf/extractor/TestXSSFImportFromXML.java
-export JAVA_TOOL_OPTIONS="-Xmx4096m"
+sed -i -e s/-Xmx512m/-Xmx1024m/ build.xml
 %endif
 cat > build.properties <<'EOF'
 main.ant.jar=lib/ant.jar
@@ -140,6 +140,9 @@ done
 %license LICENSE NOTICE
 
 %changelog
+* Mon Jun 3 2024 laokz <zhangkai@iscas.ac.cn> - 3.17-6
+- riscv64: fix OOM build failure
+
 * Wed Mar 6 2024 zke_012020 <keer.oerv@isrc.iscas.ac.cn> - 3.17-5
 - Update spec for RISCV64