diff --git a/spring-boot-cli/src/main/java/org/springframework/boot/cli/command/options/SourceOptions.java b/spring-boot-cli/src/main/java/org/springframework/boot/cli/command/options/SourceOptions.java
index 4165466b90..0b1897a73f 100644
--- a/spring-boot-cli/src/main/java/org/springframework/boot/cli/command/options/SourceOptions.java
+++ b/spring-boot-cli/src/main/java/org/springframework/boot/cli/command/options/SourceOptions.java
@@ -16,6 +16,7 @@
 
 package org.springframework.boot.cli.command.options;
 
+import java.io.File;
 import java.util.ArrayList;
 import java.util.Collections;
 import java.util.List;
@@ -78,13 +79,20 @@ public class SourceOptions {
 				if ("--".equals(filename)) {
 					break;
 				}
-				List<String> urls = ResourceUtils.getUrls(filename, classLoader);
+				List<String> urls = new ArrayList<String>();
+				File fileCandidate = new File(filename);
+				if (fileCandidate.isFile()) {
+					urls.add(fileCandidate.getAbsoluteFile().toURI().toString());
+				}
+				else if (!isAbsoluteWindowsFile(fileCandidate)) {
+					urls.addAll(ResourceUtils.getUrls(filename, classLoader));
+				}
 				for (String url : urls) {
-					if (url.endsWith(".groovy") || url.endsWith(".java")) {
+					if (isSource(url)) {
 						sources.add(url);
 					}
 				}
-				if ((filename.endsWith(".groovy") || filename.endsWith(".java"))) {
+				if (isSource(filename)) {
 					if (urls.isEmpty()) {
 						throw new IllegalArgumentException("Can't find " + filename);
 					}
@@ -100,6 +108,18 @@ public class SourceOptions {
 		this.sources = Collections.unmodifiableList(sources);
 	}
 
+	private boolean isAbsoluteWindowsFile(File file) {
+		return isWindows() && file.isAbsolute();
+	}
+
+	private boolean isWindows() {
+		return File.separatorChar == '\\';
+	}
+
+	private boolean isSource(String name) {
+		return name.endsWith(".java") || name.endsWith(".groovy");
+	}
+
 	public List<?> getArgs() {
 		return this.args;
 	}
diff --git a/spring-boot-tools/spring-boot-loader/src/main/java/org/springframework/boot/loader/LaunchedURLClassLoader.java b/spring-boot-tools/spring-boot-loader/src/main/java/org/springframework/boot/loader/LaunchedURLClassLoader.java
index a9d0e1d469..5609899813 100644
--- a/spring-boot-tools/spring-boot-loader/src/main/java/org/springframework/boot/loader/LaunchedURLClassLoader.java
+++ b/spring-boot-tools/spring-boot-loader/src/main/java/org/springframework/boot/loader/LaunchedURLClassLoader.java
@@ -50,12 +50,7 @@ public class LaunchedURLClassLoader extends URLClassLoader {
 	public URL findResource(String name) {
 		Handler.setUseFastConnectionExceptions(true);
 		try {
-			try {
-				return super.findResource(name);
-			}
-			catch (IllegalArgumentException ex) {
-				return null;
-			}
+			return super.findResource(name);
 		}
 		finally {
 			Handler.setUseFastConnectionExceptions(false);