add convenience script to run texttests

Java/README.md

@@ -14,6 +14,10 @@ For e.g. 10 days:
 ./gradlew -q text --args 10
 ```
 
+You should make sure the gradle commands shown above work when you execute them in a terminal before trying to use TextTest (see below).
+
+
 ## Run the TextTest approval test that comes with this project
 
-There are instructions in the [TextTest Readme](https://github.com/emilybache/GildedRose-Refactoring-Kata/blob/main/texttests/README.md) for setting up TextTest. What's unusual for the Java version is there are two executables listed in [config.gr](https://github.com/emilybache/GildedRose-Refactoring-Kata/blob/main/texttests/config.gr) for Java. One uses Gradle wrapped in a python script, the other relies on your CLASSPATH being set correctly in [environment.gr](https://github.com/emilybache/GildedRose-Refactoring-Kata/blob/main/texttests/environment.gr).
+There are instructions in the [TextTest Readme](../texttests/README.md) for setting up TextTest. What's unusual for the Java version is there are two executables listed in [config.gr](../texttests/config.gr) for Java. One uses Gradle wrapped in a python script, the other relies on your CLASSPATH being set correctly in [environment.gr](../texttests/environment.gr).
+

Java/gradle.properties

@@ -0,0 +1 @@
+org.gradle.jvmargs=-Xmx1536M --add-exports=java.base/sun.nio.ch=ALL-UNNAMED --add-opens=jdk.compiler/com.sun.tools.javac.code=ALL-UNNAMED --add-opens=java.base/java.lang.reflect=ALL-UNNAMED --add-opens=java.base/java.io=ALL-UNNAMED --add-exports=jdk.unsupported/sun.misc=ALL-UNNAMED