updtaes from j3270

gradlew

@@ -115,6 +115,26 @@ esac
 CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
 
 
+# Prefer compatible JDK (JDK 17 or 21) if active Java is incompatible (Java 22+)
+if [ -d "/Users/rudi/.sdkman/candidates/java/21.0.6-sem" ]; then
+    export JAVA_HOME="/Users/rudi/.sdkman/candidates/java/21.0.6-sem"
+elif [ -d "$HOME/.sdkman/candidates/java/21.0.2-open" ]; then
+    CURRENT_JAVA_CMD="${JAVA_HOME:+$JAVA_HOME/bin/java}"
+    CURRENT_JAVA_CMD="${CURRENT_JAVA_CMD:-java}"
+    CURRENT_VER=$("$CURRENT_JAVA_CMD" -version 2>&1 | awk -F '"' '/version/ {print $2}' | cut -d'.' -f1)
+    if [ -z "$JAVA_HOME" ] || [ "$CURRENT_VER" -gt 21 ] 2>/dev/null; then
+        export JAVA_HOME="$HOME/.sdkman/candidates/java/21.0.2-open"
+    fi
+fi
+
+if [ -z "$ANDROID_HOME" ]; then
+    if [ -d "$HOME/Library/Android/sdk" ]; then
+        export ANDROID_HOME="$HOME/Library/Android/sdk"
+    elif [ -d "$HOME/Android/Sdk" ]; then
+        export ANDROID_HOME="$HOME/Android/Sdk"
+    fi
+fi
+
 # Determine the Java command to use to start the JVM.
 if [ -n "$JAVA_HOME" ] ; then
     if [ -x "$JAVA_HOME/jre/sh/java" ] ; then