jvm util functions

pom.xml

@@ -7,7 +7,7 @@
     <artifactId>kt-helper</artifactId>
     <groupId>org.vorpal.research</groupId>
     <packaging>jar</packaging>
-    <version>0.1.17</version>
+    <version>0.1.18</version>
 
     <properties>
         <jvm.version>1.8</jvm.version>

src/main/kotlin/org/vorpal/research/kthelper/jvm.kt

@@ -0,0 +1,21 @@
+package org.vorpal.research.kthelper
+
+import org.vorpal.research.kthelper.assert.unreachable
+import java.nio.file.Path
+import java.nio.file.Paths
+
+
+fun getJDKPath(): Path {
+    return Paths.get(System.getProperty("java.home")).parent.toAbsolutePath()
+}
+
+fun getJavaPath(): Path = Paths.get(System.getProperty("java.home"), "bin", "java").toAbsolutePath()
+
+fun getJavacPath(): Path = Paths.get(System.getProperty("java.home"), "bin", "javac").toAbsolutePath()
+
+fun getJvmVersion(): Int {
+    val versionStr = System.getProperty("java.version")
+    return """(1.)?(\d+)""".toRegex().find(versionStr)?.let {
+        it.groupValues[2].toInt()
+    } ?: unreachable("Could not detect JVM version: \"$versionStr\"")
+}