More informative error

Author: bbimber

SequenceAnalysis/src/org/labkey/sequenceanalysis/run/util/FastqcRunner.java

@@ -44,11 +44,13 @@
 import java.io.InputStreamReader;
 import java.io.StringWriter;
 import java.util.ArrayList;
+import java.util.Arrays;
 import java.util.HashSet;
 import java.util.LinkedList;
 import java.util.List;
 import java.util.Map;
 import java.util.Set;
+import java.util.stream.Collectors;
 import java.util.zip.GZIPInputStream;
 
 /**
@@ -350,6 +352,11 @@ private List<String> getBaseParams() throws FileNotFoundException
 
         File libDir = new File(ModuleLoader.getInstance().getModule(SequenceAnalysisModule.NAME).getExplodedPath(), "lib");
         File coreLibDir = new File(ModuleLoader.getInstance().getModule("core").getExplodedPath(), "lib");
+        if (!coreLibDir.exists())
+        {
+            throw new RuntimeException("Not found: " + coreLibDir.getPath());
+        }
+
         File fastqcDir = new File(libDir.getParentFile(), "external/fastqc");
         File bzJar = new File(libDir, "bzip2-0.9.1.jar");
         if (!bzJar.exists())
@@ -362,7 +369,9 @@ private List<String> getBaseParams() throws FileNotFoundException
         File commonsMath = new File(coreLibDir, "commons-math3-3.6.1.jar");
         if (!commonsMath.exists())
         {
-            throw new RuntimeException("Not found: " + commonsMath.getPath());
+            File[] files = coreLibDir.listFiles();
+            String contents = files == null ? "null" : Arrays.stream(files).map(File::getName).filter(x -> x.contains("math")).collect(Collectors.joining(","));
+            throw new RuntimeException("Not found: " + commonsMath.getPath() + ", files present: " + contents);
         }
 
         List<String> classPath = new ArrayList<>();