78     private boolean needsSaving;
  79     // If this is a new javac_state file, then do not print unnecessary messages.
  80     private boolean newJavacState;
  81 
  82     // These are packages where something has changed and the package
  83     // needs to be recompiled. Actions that trigger recompilation:
  84     // * source belonging to the package has changed
  85     // * artifact belonging to the package is lost, or its timestamp has been changed.
  86     // * an unknown artifact has appeared, we simply delete it, but we also trigger a recompilation.
  87     // * a package that is tainted, taints all packages that depend on it.
  88     private Set<String> taintedPackages;
  89     // After a compile, the pubapis are compared with the pubapis stored in the javac state file.
  90     // Any packages where the pubapi differ are added to this set.
  91     // Later we use this set and the dependency information to taint dependent packages.
  92     private Set<String> packagesWithChangedPublicApis;
  93     // When a module-info.java file is changed, taint the module,
  94     // then taint all modules that depend on that that module.
  95     // A module dependency can occur directly through a require, or
  96     // indirectly through a module that does a public export for the first tainted module.
  97     // When all modules are tainted, then taint all packages belonging to these modules.
  98     // Then rebuild. It is perhaps possible (and valuable?) to do a more finegrained examination of the
  99     // change in module-info.java, but that will have to wait.
 100     private Set<String> taintedModules;
 101     // The set of all packages that has been recompiled.
 102     // Copy over the javac_state for the packages that did not need recompilation,
 103     // verbatim from the previous (prev) to the new (now) build state.
 104     private Set<String> recompiledPackages;
 105 
 106     // The output directories filled with tasty artifacts.
 107     private File binDir, gensrcDir, headerDir, stateDir;
 108 
 109     // The current status of the file system.
 110     private Set<File> binArtifacts;
 111     private Set<File> gensrcArtifacts;
 112     private Set<File> headerArtifacts;
 113 
 114     // The status of the sources.
 115     Set<Source> removedSources = null;
 116     Set<Source> addedSources = null;
 117     Set<Source> modifiedSources = null;
 118 

  78     private boolean needsSaving;
  79     // If this is a new javac_state file, then do not print unnecessary messages.
  80     private boolean newJavacState;
  81 
  82     // These are packages where something has changed and the package
  83     // needs to be recompiled. Actions that trigger recompilation:
  84     // * source belonging to the package has changed
  85     // * artifact belonging to the package is lost, or its timestamp has been changed.
  86     // * an unknown artifact has appeared, we simply delete it, but we also trigger a recompilation.
  87     // * a package that is tainted, taints all packages that depend on it.
  88     private Set<String> taintedPackages;
  89     // After a compile, the pubapis are compared with the pubapis stored in the javac state file.
  90     // Any packages where the pubapi differ are added to this set.
  91     // Later we use this set and the dependency information to taint dependent packages.
  92     private Set<String> packagesWithChangedPublicApis;
  93     // When a module-info.java file is changed, taint the module,
  94     // then taint all modules that depend on that that module.
  95     // A module dependency can occur directly through a require, or
  96     // indirectly through a module that does a public export for the first tainted module.
  97     // When all modules are tainted, then taint all packages belonging to these modules.
  98     // Then rebuild. It is perhaps possible (and valuable?) to do a more fine-grained examination of the
  99     // change in module-info.java, but that will have to wait.
 100     private Set<String> taintedModules;
 101     // The set of all packages that has been recompiled.
 102     // Copy over the javac_state for the packages that did not need recompilation,
 103     // verbatim from the previous (prev) to the new (now) build state.
 104     private Set<String> recompiledPackages;
 105 
 106     // The output directories filled with tasty artifacts.
 107     private File binDir, gensrcDir, headerDir, stateDir;
 108 
 109     // The current status of the file system.
 110     private Set<File> binArtifacts;
 111     private Set<File> gensrcArtifacts;
 112     private Set<File> headerArtifacts;
 113 
 114     // The status of the sources.
 115     Set<Source> removedSources = null;
 116     Set<Source> addedSources = null;
 117     Set<Source> modifiedSources = null;
 118