src/jdk.aot/share/classes/jdk.tools.jaotc/src/jdk/tools/jaotc/Linker.java

*** 42,51 ****
--- 42,59 ----
  
      String libFile() {
          return libraryFileName;
      }
  
+     private static String getString(InputStream stream) {
+         BufferedReader br = new BufferedReader(new InputStreamReader(stream));
+         Stream<String> lines = br.lines();
+         StringBuilder sb = new StringBuilder();
+         lines.iterator().forEachRemaining(e -> sb.append(e));
+         return sb.toString();
+     }
+ 
      Linker(Main main) throws Exception {
          this.options = main.options;
          String name = options.outputName;
          objectFileName = name;
          libraryFileName = name;
*** 104,136 ****
          // Check linker presence on platforms by printing its version
          if (linkerCheck != null) {
              Process p = Runtime.getRuntime().exec(linkerCheck);
              final int exitCode = p.waitFor();
              if (exitCode != 0) {
!                 InputStream stderr = p.getErrorStream();
!                 BufferedReader br = new BufferedReader(new InputStreamReader(stderr));
!                 Stream<String> lines = br.lines();
!                 StringBuilder sb = new StringBuilder();
!                 lines.iterator().forEachRemaining(e -> sb.append(e));
!                 throw new InternalError(sb.toString());
              }
          }
      }
  
      void link() throws Exception {
          Process p = Runtime.getRuntime().exec(linkerCmd);
          final int exitCode = p.waitFor();
          if (exitCode != 0) {
!             InputStream stderr = p.getErrorStream();
!             if (stderr.read() == -1) {
!                 stderr = p.getInputStream();
              }
!             BufferedReader br = new BufferedReader(new InputStreamReader(stderr));
!             Stream<String> lines = br.lines();
!             StringBuilder sb = new StringBuilder();
!             lines.iterator().forEachRemaining(e -> sb.append(e));
!             throw new InternalError(sb.toString());
          }
          File objFile = new File(objectFileName);
          if (objFile.exists()) {
              if (!objFile.delete()) {
                  throw new InternalError("Failed to delete " + objectFileName + " file");
--- 112,135 ----
          // Check linker presence on platforms by printing its version
          if (linkerCheck != null) {
              Process p = Runtime.getRuntime().exec(linkerCheck);
              final int exitCode = p.waitFor();
              if (exitCode != 0) {
!                 throw new InternalError(getString(p.getErrorStream()));
              }
          }
      }
  
      void link() throws Exception {
          Process p = Runtime.getRuntime().exec(linkerCmd);
          final int exitCode = p.waitFor();
          if (exitCode != 0) {
!             String errorMessage = getString(p.getErrorStream());
!             if (errorMessage.isEmpty()) {
!                 errorMessage = getString(p.getInputStream());
              }
!             throw new InternalError(errorMessage);
          }
          File objFile = new File(objectFileName);
          if (objFile.exists()) {
              if (!objFile.delete()) {
                  throw new InternalError("Failed to delete " + objectFileName + " file");