Workaround for a bug in the Zing JVM: do not call Math.unsignedMultip…

…lyHigh(long,long).

deployment/deployment.md

@@ -15,17 +15,17 @@ can upload to the nexus repository manager.
 
 ```shell
 cp ../fastdoubleparser/target/*.jar .
-cp ../fastdoubleparser-java21/target/*javadoc.jar fastdoubleparser-1.0.1-javadoc.jar
+cp ../fastdoubleparser-java22/target/*javadoc.jar fastdoubleparser-1.0.90-javadoc.jar
 rm -rf META-INF
 mkdir META-INF 
 cp ../LICENSE META-INF
 cp ../fastdoubleparser-dev/src/main/resources/ch.randelshofer.fastdoubleparser/META-INF/thirdparty-LICENSE META-INF
 cp ../NOTICE META-INF
-jar -uf fastdoubleparser-1.0.1-javadoc.jar META-INF/*
-jar -uf fastdoubleparser-1.0.1-sources.jar META-INF/*
+jar -uf fastdoubleparser-1.0.90-javadoc.jar META-INF/*
+jar -uf fastdoubleparser-1.0.90-sources.jar META-INF/*
 rm *.asc
 for f in *.jar; do gpg -ab "$f"; done
 for f in *.xml; do gpg -ab "$f"; done
 rm *bundle.jar
-jar -cf fastdoubleparser-1.0.1-bundle.jar $(ls -1 pom*|xargs) $(ls -1 fastdoubleparser*|xargs)
+jar -cf fastdoubleparser-1.0.90-bundle.jar $(ls -1 pom*|xargs) $(ls -1 fastdoubleparser*|xargs)
 ```

deployment/pom.xml

@@ -3,7 +3,7 @@
   <modelVersion>4.0.0</modelVersion>
   <groupId>ch.randelshofer</groupId>
   <artifactId>fastdoubleparser</artifactId>
-  <version>1.0.1</version>
+  <version>1.0.90</version>
   <packaging>jar</packaging>
 
   <name>ch.randelshofer:fastdoubleparser</name>

fastdoubleparser-dev/src/main/java/ch.randelshofer.fastdoubleparser/ch/randelshofer/fastdoubleparser/FastIntegerMath.java

@@ -138,8 +138,33 @@ static void fillPowersOfNFloor16Recursive(NavigableMap<Integer, BigInteger> powe
         }
     }
 
-    static long unsignedMultiplyHigh(long x, long y) {//since Java 18
-        return Math.unsignedMultiplyHigh(x, y);
+    /**
+     * Workaround for a bug in the Zing JVM.
+     * <pre>
+     * OpenJDK Runtime Environment Zing24.09.0.0+5 (build 21.0.4+4-LTS)
+     * Zing 64-Bit Tiered VM Zing24.09.0.0+5 (build 21.0.4-zing_24.09.0.0-b5-release-linux-X86_64, mixed mode)
+     * </pre>
+     * Instead of calling {@link Math#unsignedMultiplyHigh(long, long)}
+     * we use our own implementation.
+     *
+     * @param x the first value
+     * @param y the second value
+     * @return the result
+     */
+    //static long unsignedMultiplyHigh(long x, long y) {//since Java 18
+    //    return Math.unsignedMultiplyHigh(x, y);
+    //}
+    static long unsignedMultiplyHigh(long x, long y) {//before Java 18
+        long x0 = x & 0xffffffffL, x1 = x >>> 32;
+        long y0 = y & 0xffffffffL, y1 = y >>> 32;
+        long p11 = x1 * y1, p01 = x0 * y1;
+        long p10 = x1 * y0, p00 = x0 * y0;
+
+        // 64-bit product + two 32-bit values
+        long middle = p10 + (p00 >>> 32) + (p01 & 0xffffffffL);
+
+        // 64-bit product + two 32-bit values
+        return p11 + (middle >>> 32) + (p01 >>> 32);
     }
 
     /**

fastdoubleparser/pom.xml

@@ -84,7 +84,7 @@
             </configuration>
           </execution>
           <execution>
-              <id>copy-sources-from-fastdoubleparser-java21</id>
+              <id>copy-sources-from-fastdoubleparser-java22</id>
             <phase>generate-sources</phase>
             <goals>
               <goal>copy-resources</goal>

pom.xml

@@ -67,7 +67,7 @@
     <maven.compiler.source>${javaVersion}</maven.compiler.source>
     <maven.compiler.target>${javaVersion}</maven.compiler.target>
     <project.build.outputTimestamp>${git.commit.time}</project.build.outputTimestamp>
-    <revision>1.0.1</revision>
+    <revision>1.0.90</revision>
     <license.url>
       https://github.com/wrandelshofer/FastDoubleParser/blob/9a3ccae38254c9bf84b5e6a218a47675bf80ed9f/LICENSE
     </license.url>