add usage info

baltzell · baltzell · commit c1f01c3e431f · 2025-12-17T17:45:02.000-05:00
diff --git a/common-tools/clas-utils/src/main/java/org/jlab/utils/options/OptionParser.java b/common-tools/clas-utils/src/main/java/org/jlab/utils/options/OptionParser.java
@@ -179,6 +179,7 @@ else if(this.containsOptions(arguments,"-v","-version")==true){
             }
         }
         if (this.requiresInputList && this.parsedInputList.isEmpty()) {
+            printUsage();
             System.err.println(" \n*** ERROR *** Empty Input List.");
             System.exit(101);
         }

Original file line number	Diff line number	Diff line change
`@@ -179,6 +179,7 @@ else if(this.containsOptions(arguments,"-v","-version")==true){`
`179`	`179`	`}`
`180`	`180`	`}`
`181`	`181`	`if (this.requiresInputList && this.parsedInputList.isEmpty()) {`
	`182`	`+ printUsage();`
`182`	`183`	`System.err.println(" \n* ERROR * Empty Input List.");`
`183`	`184`	`System.exit(101);`
`184`	`185`	`}`