Try to work on build some more.

crates/core/src/workspace.rs

@@ -139,6 +139,24 @@ impl WorkspaceHandler {
 
     // This is the naive build
     pub fn build(&mut self) -> crate::Result<()> {
+        let mut targets = vec![];
+
+        for (_name, mut handler) in self.packages.clone() {
+            targets.append(&mut handler.get_update_targets()?);
+        }
+
+        let compiler = java::compiler::CompilerBuilder::new()
+            .class_path(Self::DIR_TARGET)
+            .class_path(Self::DIR_TARGET)
+            .build();
+
+        for target in targets {
+            // Possibly come up with a source file handler for this?
+            if let Ok(_) = compiler.clone().compile(target) {
+                // No, this does not run O(1)
+            }
+        }
+
         Ok(())
     }