Find more potential maven binary locations

Author: Redande

tmc-plugin/src/fi/helsinki/cs/tmc/actions/EnsureMavenBinaryIsExecutable.java

@@ -1,38 +1,50 @@
 package fi.helsinki.cs.tmc.actions;
 
+import java.io.File;
 import java.io.IOException;
 import java.nio.file.Files;
 import java.nio.file.Path;
 import java.nio.file.Paths;
 import java.nio.file.attribute.PosixFilePermission;
 import java.util.Set;
+import org.openide.modules.InstalledFileLocator;
 
 public class EnsureMavenBinaryIsExecutable {
 
     private final static Path RELATIVE_MAVEN_LOCATION = Paths.get("java").resolve("maven").resolve("bin").resolve("mvn");
 
-    private final Path mavenPath;
+    private Path mavenPath;
     private final boolean isUnix;
 
     public EnsureMavenBinaryIsExecutable() {
+        this.isUnix = !System.getProperty("os.name").startsWith("Windows");
+    }
+    
+    public void run() {
+        if (!isUnix) {
+            return;
+        }
         Path pathCandidate = Paths.get(System.getProperty("user.dir")).resolve(RELATIVE_MAVEN_LOCATION);
         if (Files.exists(pathCandidate)) {
             this.mavenPath = pathCandidate;
         } else {
             this.mavenPath = Paths.get(System.getProperty("user.dir")).resolve("../").resolve(RELATIVE_MAVEN_LOCATION);
         }
-        this.isUnix = !System.getProperty("os.name").startsWith("Windows");
-    }
-    
-    public void run() {
-        if (!isUnix || !Files.exists(mavenPath)) {
+        for (File file : InstalledFileLocator.getDefault().locateAll(".", null, false)) {
+            tryToChmod(Paths.get(file.getAbsolutePath()).resolve("..").resolve(RELATIVE_MAVEN_LOCATION));
+        }
+        if (!Files.exists(mavenPath)) {
             return;
         }
+        tryToChmod(mavenPath);
+    }
+
+    private void tryToChmod(Path path) {
         try {
-            Set<PosixFilePermission> permissions = Files.getPosixFilePermissions(mavenPath);
+            Set<PosixFilePermission> permissions = Files.getPosixFilePermissions(path);
             if (!permissions.contains(PosixFilePermission.OWNER_EXECUTE)) {
                 permissions.add(PosixFilePermission.OWNER_EXECUTE);
-                Files.setPosixFilePermissions(mavenPath, permissions);
+                Files.setPosixFilePermissions(path, permissions);
             }
         } catch (IOException ex) { }
     }