src/java.base/share/classes/jdk/internal/loader/ClassLoaders.java

rev 51919 : 8215281: Use String.isEmpty() when applicable in java.base
Reviewed-by: dfuchs, alanb

*** 57,78 ****
      // Creates the built-in class loaders.
      static {
          // -Xbootclasspath/a or -javaagent with Boot-Class-Path attribute
          String append = VM.getSavedProperty("jdk.boot.class.path.append");
          BOOT_LOADER =
!             new BootClassLoader((append != null && append.length() > 0)
                  ? new URLClassPath(append, true)
                  : null);
          PLATFORM_LOADER = new PlatformClassLoader(BOOT_LOADER);
  
          // A class path is required when no initial module is specified.
          // In this case the class path defaults to "", meaning the current
          // working directory.  When an initial module is specified, on the
          // contrary, we drop this historic interpretation of the empty
          // string and instead treat it as unspecified.
          String cp = System.getProperty("java.class.path");
!         if (cp == null || cp.length() == 0) {
              String initialModuleName = System.getProperty("jdk.module.main");
              cp = (initialModuleName == null) ? "" : null;
          }
          URLClassPath ucp = new URLClassPath(cp, false);
          APP_LOADER = new AppClassLoader(PLATFORM_LOADER, ucp);
--- 57,78 ----
      // Creates the built-in class loaders.
      static {
          // -Xbootclasspath/a or -javaagent with Boot-Class-Path attribute
          String append = VM.getSavedProperty("jdk.boot.class.path.append");
          BOOT_LOADER =
!             new BootClassLoader((append != null && !append.isEmpty())
                  ? new URLClassPath(append, true)
                  : null);
          PLATFORM_LOADER = new PlatformClassLoader(BOOT_LOADER);
  
          // A class path is required when no initial module is specified.
          // In this case the class path defaults to "", meaning the current
          // working directory.  When an initial module is specified, on the
          // contrary, we drop this historic interpretation of the empty
          // string and instead treat it as unspecified.
          String cp = System.getProperty("java.class.path");
!         if (cp == null || cp.isEmpty()) {
              String initialModuleName = System.getProperty("jdk.module.main");
              cp = (initialModuleName == null) ? "" : null;
          }
          URLClassPath ucp = new URLClassPath(cp, false);
          APP_LOADER = new AppClassLoader(PLATFORM_LOADER, ucp);