Revert "Switch to use new Doclava"

This reverts commit 702fb3bdc9ce51b90abff5b0d13790e64aebef1e.

Reason for revert: Build breaks in some branches

Change-Id: I3502b86d1a2e1afd6bc32e02287cd903bad7b9b2
diff --git a/java/droiddoc.go b/java/droiddoc.go
index e98b9ea..01a2c14 100644
--- a/java/droiddoc.go
+++ b/java/droiddoc.go
@@ -603,10 +603,12 @@
 		Flag("-J-XX:-OmitStackTraceInFastThrow").
 		Flag("-XDignore.symbol.file").
 		Flag("--ignore-source-errors").
-		FlagWithArg("-doclet ", "com.google.doclava.Doclava").
+		// b/240421555: use a stub doclet until Doclava works with JDK 17
+		//FlagWithArg("-doclet ", "com.google.doclava.Doclava").
+		FlagWithArg("-doclet ", "com.google.stubdoclet.StubDoclet").
 		FlagWithInputList("-docletpath ", docletPath.Paths(), ":").
-		FlagWithArg("-Xmaxerrs ", "10").
-		FlagWithArg("-Xmaxwarns ", "10").
+		FlagWithArg("-Xmaxerrs ", "1").
+		FlagWithArg("-Xmaxwarns ", "1").
 		Flag("-J--add-exports=jdk.javadoc/jdk.javadoc.internal.doclets.formats.html=ALL-UNNAMED").
 		Flag("-J--add-exports=jdk.compiler/com.sun.tools.javac.util=ALL-UNNAMED").
 		FlagWithArg("-hdf page.build ", ctx.Config().BuildId()+"-$(cat "+buildNumberFile.String()+")").OrderOnly(buildNumberFile).
@@ -778,6 +780,8 @@
 
 	jsilver := ctx.Config().HostJavaToolPath(ctx, "jsilver.jar")
 	doclava := ctx.Config().HostJavaToolPath(ctx, "doclava.jar")
+	// b/240421555: use a stub doclet until Doclava works with JDK 17
+	stubdoclet := ctx.Config().HostJavaToolPath(ctx, "stubdoclet.jar")
 
 	outDir := android.PathForModuleOut(ctx, "out")
 	srcJarDir := android.PathForModuleOut(ctx, "srcjars")
@@ -805,7 +809,8 @@
 	if Bool(d.properties.Dokka_enabled) {
 		desc = "dokka"
 	} else {
-		d.doclavaDocsFlags(ctx, cmd, classpath{jsilver, doclava})
+		// b/240421555: use a stub doclet until Doclava works with JDK 17
+		d.doclavaDocsFlags(ctx, cmd, classpath{jsilver, doclava, stubdoclet})
 
 		for _, o := range d.Javadoc.properties.Out {
 			cmd.ImplicitOutput(android.PathForModuleGen(ctx, o))
@@ -823,9 +828,9 @@
 		FlagWithArg("-C ", outDir.String()).
 		FlagWithArg("-D ", outDir.String())
 
-	rule.Restat()
+	// rule.Restat()
 
-	zipSyncCleanupCmd(rule, srcJarDir)
+	// zipSyncCleanupCmd(rule, srcJarDir)
 
 	rule.Build("javadoc", desc)
 }