Print a simple error message when a jarmode tools command fails

See gh-51540

Signed-off-by: Hyeongjun Cho <ryuu.public@gmail.com>

loader/spring-boot-jarmode-tools/src/main/java/org/springframework/boot/jarmode/tools/ToolsJarMode.java

@@ -22,11 +22,13 @@ import java.util.List;
 import org.jspecify.annotations.Nullable;
 
 import org.springframework.boot.loader.jarmode.JarMode;
+import org.springframework.boot.loader.jarmode.JarModeErrorException;
 
 /**
  * {@link JarMode} providing {@code "tools"} support.
  *
  * @author Moritz Halbritter
+ * @author Hyeongjun Cho
  * @since 3.3.0
  */
 public class ToolsJarMode implements JarMode {
@@ -54,6 +56,9 @@ public class ToolsJarMode implements JarMode {
 		try {
 			new Runner(this.out, this.context, getCommands(this.context)).run(args);
 		}
+		catch (JarModeErrorException ex) {
+			throw ex;
+		}
 		catch (Exception ex) {
 			throw new IllegalStateException(ex);
 		}

loader/spring-boot-jarmode-tools/src/test/java/org/springframework/boot/jarmode/tools/ToolsJarModeTests.java

@@ -21,12 +21,16 @@ import java.io.IOException;
 import org.junit.jupiter.api.BeforeEach;
 import org.junit.jupiter.api.Test;
 
+import org.springframework.boot.loader.jarmode.JarModeErrorException;
+
 import static org.assertj.core.api.Assertions.assertThat;
+import static org.assertj.core.api.Assertions.assertThatExceptionOfType;
 
 /**
  * Tests for {@link ToolsJarMode}.
  *
  * @author Moritz Halbritter
+ * @author Hyeongjun Cho
  */
 class ToolsJarModeTests extends AbstractJarModeTests {
 
@@ -95,6 +99,11 @@ class ToolsJarModeTests extends AbstractJarModeTests {
 		assertThat(this.out).hasSameContentAsResource("tools-error-option-missing-value-output.txt");
 	}
 
+	@Test
+	void commandFailureIsThrownAsJarModeErrorException() {
+		assertThatExceptionOfType(JarModeErrorException.class).isThrownBy(() -> run("list-layers"));
+	}
+
 	private void run(String... args) {
 		this.mode.run("tools", args);
 	}