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Inheriting Javadoc from the JDK _and_ linking to the JDK broke at some point #6790
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I can reproduce this locally with |
Yes, I can fix it by removing the I could believe that the problem is somehow related to modules. Roughly, the JDK sources might be "hidden" by the JDK modules? I briefly tried messing with the path we pass to Javadoc, passing I tried removing our exclusion of the JDK's
So it's possible that things would go better if Guava were a real module (#2970). (Presumably Javadoc would be willing to inherit Javadoc across module boundaries.) I could probably "fix" this by setting the Javadoc source version back to 8 for JDK 11 (where we know that it works). But we know that it doesn't work for JDK 17, so this would be only a temporary fix. |
I guess I'm somewhat pessimistic about that, given that the sources probably are being hidden entirely. But I could believe that we could do something with I'm not excited about trying to get this to work, but if anyone wants to try to wire it up, either the temporary solution of using |
Oh, and in all this, I've been forgetting about the problem linking to the JDK. I would guess (but haven't checked) that that problem is a result of the same commit as the other problem. It may be related to how we still link (well, try to link) to JDK 9, which of course supports the module system but does not yet include the module name in the path of the Javadoc it produces. |
It looks like #7087 fixes linking in snapshot Javadoc by switching to Java 21 for snapshot-Javadoc generation. If we want to make things work for our releases, then we can do that by using Java 21 for our releases, too. (Now, I've always been in the habit of using snapshot Javadoc, myself. But I don't know what most users do.) If we switch to Java 21, we'll have to be careful to continue to generate bytecode that works under older versions (which |
(Snapshot docs are built by a different workflow task/whatever than snapshots themselves, so we could also use Java 21 for one but not the other. Releases currently use the same Java version for each.) |
Drops the JDK source steps involved with Javadoc builds, as suggested in #7089. There will be some build warnings related to Javadoc until subsequent PRs are merged. Signed-off-by: Sam Gammon <sam@elide.ventures> Gives up on the "inherting" half of #6790. Fixes #7092 RELNOTES=n/a PiperOrigin-RevId: 614681928
Drops the JDK source steps involved with Javadoc builds, as suggested in #7089. There will be some build warnings related to Javadoc until subsequent PRs are merged. Signed-off-by: Sam Gammon <sam@elide.ventures> Gives up on the "inherting" half of #6790. Fixes #7092 RELNOTES=n/a PiperOrigin-RevId: 614693592
Wait, no, #7087 (aka #7102 aka f2b8c4f) causes Javadoc generation to fail?
I had tested something locally, but I guess it wasn't that. For now, I'll roll back to JDK 11. |
(i.e., roll back a small portion of cl/615151162) It turns out that Javadoc snapshots [fail when using Java 21](#6790 (comment)). RELNOTES=n/a PiperOrigin-RevId: 615518606
(i.e., roll back a small portion of cl/615151162) It turns out that Javadoc snapshots [fail when using Java 21](#6790 (comment)). RELNOTES=n/a PiperOrigin-RevId: 615532809
Linking to the JDK works with a Java 21 (and perhaps earlier versions), so that's a reason to generate docs with a newer version once we can. (We'd want to think about both what we do for snapshots and what we do for releases.) Inheriting docs from the JDK doesn't work automatically, so I'd probably continue not to worry about it. The only javadoc-21 blocker I remember offhand is JDiff, which I'm assuming is responsible for the error reported just above. |
In particular: - Use JDK 22 for compilation to [avoid a JDK 11 bug](#7331). - Another way to avoid that bug would be to use JDK 8, which [would also provide a `--release`-like compatibility guarantee](#3990). However, that could complicate [using newer APIs conditionally](#6549). And of course we'd expect JDK 8 to be buggier than JDK 22. (In fact, we still have a workaround or two for JDK 8 bugs (with a brand new one coming in cl/655556207), and we could now remove those—assuming that none of our users use JDK 8 to build Guava outside of our Maven build.) JDK 22 also supports new versions of Error Prone, while JDK 8 does not. - This change also allows us to simplify our Error Prone configuration, which until now needed different profiles in order to support both JDK 8 and JDK 9+. We could now upgrade Error Prone, but I haven't done so yet. - Continue to use JDK 11 for Javadoc, as [we're doing now](https://github.com/google/guava/blob/5041fbe61965a73ea269c7c24ea746d89bd1b1ba/.github/workflows/ci.yml#L89-L99) because of [problems with at least JDK 21](#7109). - What matters might actually be the version used [by _JDiff_](#6549 (comment)), which comes from the version in the linked `ci.yml` file. But since we're using JDK 11 currently for docs in general, I'm sticking with that for now. Still, we should consider [upgrading the version used for Javadoc generation](#6790 (comment)). But this CL is already complicated enough.... - When we hard-code JDK 11, we need to remove the `<source>${java.specification.version}</source>` line: That would otherwise set (for example) `-source 17` when running Maven under JDK 17, and JDK 11 wouldn't recognize it. As I recall, the `java.specification.version` usage was from the days in which we tried to inherit Javadoc from the JDK. Inheritance had [stopped working](#6790), and we ripped it out in cl/614693592. (See also [these notes](#5457 (comment)).) Fixes #7331 RELNOTES=n/a PiperOrigin-RevId: 655592201
In particular: - Use JDK 22 for compilation to [avoid a JDK 11 bug](#7331). - Another way to avoid that bug would be to use JDK 8, which [would also provide a `--release`-like compatibility guarantee](#3990). However, that could complicate [using newer APIs conditionally](#6549). And of course we'd expect JDK 8 to be buggier than JDK 22. (In fact, we still have a workaround or two for JDK 8 bugs (with a brand new one coming in cl/655556207), and we could now remove those—assuming that none of our users use JDK 8 to build Guava outside of our Maven build.) JDK 22 also supports new versions of Error Prone, while JDK 8 does not. - This change also allows us to simplify our Error Prone configuration, which until now needed different profiles in order to support both JDK 8 and JDK 9+. We could now upgrade Error Prone, but I haven't done so yet. - Continue to use JDK 11 for Javadoc, as [we're doing now](https://github.com/google/guava/blob/5041fbe61965a73ea269c7c24ea746d89bd1b1ba/.github/workflows/ci.yml#L89-L99) because of [problems with at least JDK 21](#7109). - What matters might actually be the version used [by _JDiff_](#6549 (comment)), which comes from the version in the linked `ci.yml` file. But since we're using JDK 11 currently for docs in general, I'm sticking with that for now. Still, we should consider [upgrading the version used for Javadoc generation](#6790 (comment)). But this CL is already complicated enough.... - When we hard-code JDK 11, we need to remove the `<source>${java.specification.version}</source>` line: That would otherwise set (for example) `-source 17` when running Maven under JDK 17, and JDK 11 wouldn't recognize it. As I recall, the `java.specification.version` usage was from the days in which we tried to inherit Javadoc from the JDK. Inheritance had [stopped working](#6790), and we ripped it out in cl/614693592. I assume that we'll now get the default from the JDK whose Javadoc binary we're using, which (again) will now be 11. That seems fine. We could consider setting it to 8 to match our normal build (which I thought I had remembered was the `maven-javadoc-plugin` default, but I don't think I'm seeing that, at least not under our current versions), but I don't see much downside to 11—or even to newer versions that we might someday use for Maven Javadoc generation, given that we keep the code compiling under new versions already. Some other thing I'm wondering: - I wonder if we should activate(?) some of the plugins, including the new toolchain plugins, in the `<plugins>` (not just `<pluginManagement>`) section of the parent `pom.xml`. Might that save us from having to do so in each separate `pom.xml`? (We might actually mostly get away with activating(?) them only in the main `guava` build: That _downloads and registers_ the toolchains, and then at least the other projects' _per-plugin_ toolchain configuration probably finds them? But for the more general configuration to work, I think we at least need to activate(?) `maven-toolchains-plugin` in each? I haven't experimented a ton with this.) (See also [these notes](#5457 (comment)).) So Fixes #7331 RELNOTES=n/a PiperOrigin-RevId: 655592201
In particular: - Use JDK 22 for compilation to [avoid a JDK 11 bug](#7331). - Another way to avoid that bug would be to use JDK 8, which [would also provide a `--release`-like compatibility guarantee](#3990). However, that could complicate [using newer APIs conditionally](#6549). And of course we'd expect JDK 8 to be buggier than JDK 22. (In fact, we still have a workaround or two for JDK 8 bugs (with a brand new one coming in cl/655556207), and we could now remove those—assuming that none of our users use JDK 8 to build Guava outside of our Maven build.) JDK 22 also supports new versions of Error Prone, while JDK 8 does not. - This change also allows us to simplify our Error Prone configuration, which until now needed different profiles in order to support both JDK 8 and JDK 9+. We could now upgrade Error Prone, but I haven't done so yet. - Continue to use JDK 11 for Javadoc, as [we're doing now](https://github.com/google/guava/blob/5041fbe61965a73ea269c7c24ea746d89bd1b1ba/.github/workflows/ci.yml#L89-L99) because of [problems with at least JDK 21](#7109). - What matters might actually be the version used [by _JDiff_](#6549 (comment)), which comes from the version in the linked `ci.yml` file. But since we're using JDK 11 currently for docs in general, I'm sticking with that for now. Still, we should consider [upgrading the version used for Javadoc generation](#6790 (comment)). But this CL is already complicated enough.... - When we hard-code JDK 11, we need to remove the `<source>${java.specification.version}</source>` line: That would otherwise set (for example) `-source 17` when running Maven under JDK 17, and JDK 11 wouldn't recognize it. As I recall, the `java.specification.version` usage was from the days in which we tried to inherit Javadoc from the JDK. Inheritance had [stopped working](#6790), and we ripped it out in cl/614693592. I assume that we'll now get the default from the JDK whose Javadoc binary we're using, which (again) will now be 11. That seems fine. We could consider setting it to 8 to match our normal build (which I thought I had remembered was the `maven-javadoc-plugin` default, but I don't think I'm seeing that, at least not under our current versions), but I don't see much downside to 11—or even to newer versions that we might someday use for Maven Javadoc generation, given that we keep the code compiling under new versions already. Some other thing I'm wondering: - I wonder if we should activate(?) some of the plugins, including the new toolchain plugins, in the `<plugins>` (not just `<pluginManagement>`) section of the parent `pom.xml`. Might that save us from having to do so in each separate `pom.xml`? (We might actually mostly get away with activating(?) them only in the main `guava` build: That _downloads and registers_ the toolchains, and then at least the other projects' _per-plugin_ toolchain configuration probably finds them? But for the more general configuration to work, I think we at least need to activate(?) `maven-toolchains-plugin` in each? I haven't experimented a ton with this.) (See also [these notes](#5457 (comment)).) So Fixes #7331 RELNOTES=n/a PiperOrigin-RevId: 655592201
In particular: - Use JDK 22 for compilation to [avoid a JDK 11 bug](#7331). - Another way to avoid that bug would be to use JDK 8, which [would also provide a `--release`-like compatibility guarantee](#3990). However, that could complicate [using newer APIs conditionally](#6549). And of course we'd expect JDK 8 to be buggier than JDK 22. (In fact, we still have a workaround or two for JDK 8 bugs (with a brand new one coming in cl/655556207), and we could now remove those—assuming that none of our users use JDK 8 to build Guava outside of our Maven build.) JDK 22 also supports new versions of Error Prone, while JDK 8 does not. - This change also allows us to simplify our Error Prone configuration, which until now needed different profiles in order to support both JDK 8 and JDK 9+. We could now upgrade Error Prone, but I haven't done so yet. - Continue to use JDK 11 for Javadoc, as [we're doing now](https://github.com/google/guava/blob/5041fbe61965a73ea269c7c24ea746d89bd1b1ba/.github/workflows/ci.yml#L89-L99) because of [problems with at least JDK 21](#7109). - What matters might actually be the version used [by _JDiff_](#6549 (comment)), which comes from the version in the linked `ci.yml` file. But since we're using JDK 11 currently for docs in general, I'm sticking with that for now. Still, we should consider [upgrading the version used for Javadoc generation](#6790 (comment)). But this CL is already complicated enough.... - When we hard-code JDK 11, we need to change the `<source>${java.specification.version}</source>` line: That would otherwise set (for example) `-source 17` when running Maven under JDK 17, and JDK 11 wouldn't recognize it. As I recall, the `java.specification.version` usage was from the days in which we tried to inherit Javadoc from the JDK. Inheritance had [stopped working](#6790), and we ripped it out in cl/614693592. I first tried going with the default from the JDK whose Javadoc binary we're using, which (again) will now be 11. But that led to a problem in `org.codehaus.plexus.languages.java.jpms.CmdModuleNameExtractor`, which apparently tries to look up the module name for the `-source 11` run but uses the Maven run's JDK instead of the Javadoc toolchain or Maven toolchain. So now I've set it to 8 to match what we use for `maven-compiler-plugin`. (I _thought_ I had remembered that `maven-javadoc-plugin` defaulted to matching `maven-compiler-plugin`, even though that's weird. Maybe the two actually just read from the same Maven property or something, or maybe the behavior changed.) Some other thing I'm wondering: - I wonder if we should activate(?) some of the plugins, including the new toolchain plugins, in the `<plugins>` (not just `<pluginManagement>`) section of the parent `pom.xml`. Might that save us from having to do so in each separate `pom.xml`? (We might actually mostly get away with activating(?) them only in the main `guava` build: That _downloads and registers_ the toolchains, and then at least the other projects' _per-plugin_ toolchain configuration probably finds them? But for the more general configuration to work, I think we at least need to activate(?) `maven-toolchains-plugin` in each? I haven't experimented a ton with this.) - I forgot the other thing while I was typing :( (See also [these notes](#5457 (comment)).) So Fixes #7331 RELNOTES=n/a PiperOrigin-RevId: 655592201
In particular: - Use JDK 22 for compilation (also, for any other [affected plugins](https://maven.apache.org/guides/mini/guide-using-toolchains.html#prerequisites)) to [avoid a JDK 11 bug](#7331). - Another way to avoid that bug would be to use JDK 8, which [would also provide a `--release`-like compatibility guarantee](#3990). However, that could complicate [using newer APIs conditionally](#6549). And of course we'd expect JDK 8 to be buggier than JDK 22. (In fact, we still have a workaround or two for JDK 8 bugs (with a brand new one coming in cl/655556207), and we could now remove those—assuming that none of our users use JDK 8 to build Guava outside of our Maven build.) JDK 22 also supports new versions of Error Prone, while JDK 8 does not. - This change also allows us to simplify our Error Prone configuration, which until now needed different profiles in order to support both JDK 8 and JDK 9+. We could now upgrade Error Prone, but I haven't done so yet. There are probably other simplifications that we could perform, as well, such as `maven-javadoc-plugin.additionalJOptions`. - Originally, I'd set up this CL to explicitly set only the toolchain of `maven-compiler-plugin` to 22. I had it using 11 for any other plugins (just Animal Sniffer, maybe?), I think from when I was trying to get toolchains to take effect at all. I've since changed this CL to set the _default_ toolchain to 22 while still including overrides for `maven-javadoc-plugin` and `maven-surefire-plugin`. - Continue to use JDK 11 for Javadoc, as [we're doing now](https://github.com/google/guava/blob/5041fbe61965a73ea269c7c24ea746d89bd1b1ba/.github/workflows/ci.yml#L89-L99) because of [problems with at least JDK 21](#7109). - What matters might actually be the version used [by _JDiff_](#6549 (comment)), which comes from the version in the linked `ci.yml` file. But since we're using JDK 11 currently for docs in general, I'm sticking with that for now. Still, we should consider [upgrading the version used for Javadoc generation](#6790 (comment)). But this CL is already complicated enough.... - When we hard-code JDK 11, we need to change the `<source>${java.specification.version}</source>` line: That would otherwise set (for example) `-source 17` when running Maven under JDK 17, and JDK 11 wouldn't recognize it. As I recall, the `java.specification.version` usage was from the days in which we tried to inherit Javadoc from the JDK. Inheritance had [stopped working](#6790), and we ripped it out in cl/614693592. I first tried going with the default from the JDK whose Javadoc binary we're using, which (again) will now be 11. But that led to a problem in `org.codehaus.plexus.languages.java.jpms.CmdModuleNameExtractor`, which apparently tries to look up the module name for the `-source 11` run but uses the Maven run's JDK instead of the Javadoc toolchain or Maven toolchain. So now I've set it to 8 to match what we use for `maven-compiler-plugin`. (I _thought_ I had remembered that `maven-javadoc-plugin` defaulted to matching `maven-compiler-plugin`, even though that's weird. Maybe the two actually just read from the same Maven property or something, or maybe the behavior changed.) Some other thing I'm wondering: - I wonder if we should activate(?) some of the plugins, including the new toolchain plugins, in the `<plugins>` (not just `<pluginManagement>`) section of the parent `pom.xml`. Might that save us from having to do so in each separate `pom.xml`? (We might actually mostly get away with activating(?) them only in the main `guava` build: That _downloads and registers_ the toolchains, and then at least the other projects' _per-plugin_ toolchain configuration probably finds them? But for the more general configuration to work, I think we at least need to activate(?) `maven-toolchains-plugin` in each? I haven't experimented a ton with this.) - I forgot the other thing while I was typing :( (See also [these notes](#5457 (comment)).) Fixes #7331 RELNOTES=n/a PiperOrigin-RevId: 655592201
In particular: - Use JDK 22 for compilation (also, for any other [affected plugins](https://maven.apache.org/guides/mini/guide-using-toolchains.html#prerequisites)) to [avoid a JDK 11 bug](#7331). - Another way to avoid that bug would be to use JDK 8, which [would also provide a `--release`-like compatibility guarantee](#3990). However, that could complicate [using newer APIs conditionally](#6549). And of course we'd expect JDK 8 to be buggier than JDK 22. (In fact, we still have a workaround or two for JDK 8 bugs (with a brand new one coming in cl/655556207), and we could now remove those—assuming that none of our users use JDK 8 to build Guava outside of our Maven build.) JDK 22 also supports new versions of Error Prone, while JDK 8 does not. - This change also allows us to simplify our Error Prone configuration, which until now needed different profiles in order to support both JDK 8 and JDK 9+. We could now upgrade Error Prone, but I haven't done so yet. There are probably other simplifications that we could perform, as well, such as `maven-javadoc-plugin.additionalJOptions`. - Originally, I'd set up this CL to explicitly set only the toolchain of `maven-compiler-plugin` to 22. I had it using 11 for any other plugins (just Animal Sniffer, maybe?), I think from when I was trying to get toolchains to take effect at all. I've since changed this CL to set the _default_ toolchain to 22 while still including overrides for `maven-javadoc-plugin` and `maven-surefire-plugin`. - Continue to use JDK 11 for Javadoc, as [we're doing now](https://github.com/google/guava/blob/5041fbe61965a73ea269c7c24ea746d89bd1b1ba/.github/workflows/ci.yml#L89-L99) because of [problems with at least JDK 21](#7109). - What matters might actually be the version used [by _JDiff_](#6549 (comment)), which comes from the version in the linked `ci.yml` file. But since we're using JDK 11 currently for docs in general, I'm sticking with that for now. Still, we should consider [upgrading the version used for Javadoc generation](#6790 (comment)). But this CL is already complicated enough.... - When we hard-code JDK 11, we need to change the `<source>${java.specification.version}</source>` line: That would otherwise set (for example) `-source 17` when running Maven under JDK 17, and JDK 11 wouldn't recognize it. As I recall, the `java.specification.version` usage was from the days in which we tried to inherit Javadoc from the JDK. Inheritance had [stopped working](#6790), and we ripped it out in cl/614693592. I first tried going with the default from the JDK whose Javadoc binary we're using, which (again) will now be 11. But that led to a problem in `org.codehaus.plexus.languages.java.jpms.CmdModuleNameExtractor`, which apparently tries to look up the module name for the `-source 11` run but uses the Maven run's JDK instead of the Javadoc toolchain or Maven toolchain. So now I've set it to 8 to match what we use for `maven-compiler-plugin`. (I _thought_ I had remembered that `maven-javadoc-plugin` defaulted to matching `maven-compiler-plugin`, even though that's weird. Maybe the two actually just read from the same Maven property or something, or maybe the behavior changed.) Some other thing I'm wondering: - I wonder if we should activate(?) some of the plugins, including the new toolchain plugins, in the `<plugins>` (not just `<pluginManagement>`) section of the parent `pom.xml`. Might that save us from having to do so in each separate `pom.xml`? (We might actually mostly get away with activating(?) them only in the main `guava` build: That _downloads and registers_ the toolchains, and then at least the other projects' _per-plugin_ toolchain configuration probably finds them? But for the more general configuration to work, I think we at least need to activate(?) `maven-toolchains-plugin` in each? I haven't experimented a ton with this.) - I forgot the other thing while I was typing :( (See also [these notes](#5457 (comment)).) Fixes #7331 RELNOTES=n/a PiperOrigin-RevId: 655647768
e.g., https://guava.dev/BiMap has blank descriptions for
put
,putAll
, andvalues
, and it has no links for types likejava.lang.Object
andjava.util.Map
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